Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account

[anihdev]

Summary

Attempting to change the display name from the Community Profile page consistently fails with the error:

Telegram validation failed at server

The display name remains unchanged even though the account is already Telegram verified.

---

Environment

• Platform: CKBoost
• Page: Community Profile
• Browser: (Chrome Desktop)
• Wallet Used: (JoyId 'connected')
• Telegram Status: Verified

---

Steps to Reproduce

1. Log into CKBoost.
2. Navigate to Community Profile.
3. Click Edit display name.
4. Enter a new display name.
5. Click Save changes.

---

Expected Behavior

The display name should update successfully after saving and the required on-chain confirmation tx.

---

Actual Behavior

• The request buffers for several seconds.
• The update fails.
• The following error is displayed:

Telegram validation failed at server

---

Additional Context

• The account already shows Telegram Verified on the profile.
• This issue does not prevent participation in quests or other platform functionality (for now).
• Originally, the display name represented a team registration ("Summer and Paschal"). Since that event has ended, I wanted to change it back to my individual name.
• If display names are intentionally immutable after registration, a message indicating this would provide a better user experience.

---

Screenshots

Current Profile

---

Edit Display Name Dialog

---

Error After Saving

---

Possible Cause

It appears the display name update endpoint may be performing Telegram validation during the save operation, even for users who are already verified, causing the request to fail server-side.

---

Impact

Severity: Low

This is primarily a profile management issue and does not appear to affect campaign participation or quest submissions.

---

Thank you

[Alive24]

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Active diagnosis
• Status: investigating
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 0
• Diagnostic session: not started
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-0
• Issue: Alive24/CKBoost#53
• Canonical representation: inline folded snapshot

Active diagnosis

Current facts and evidence

• evidence.issue.symptom [reported] — The Issue author reports that changing the display name consistently fails after several seconds with `Telegram validation failed at server`, while the profile already shows Telegram Verified. Interpretation: The failure is at or reported by a server-side Telegram-validation boundary, but this does not yet establish why validation fails. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.issue.impact [reported] — The Issue author reports that quest participation and other platform functionality are not currently blocked. Interpretation: Reported impact is localized to profile management, consistent with low severity unless broader validation failures are discovered. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.

Current hypotheses

• hypothesis.telegram.revalidation [open] — The display-name update path performs a fresh Telegram validation whose inputs or lookup do not match the already persisted verified-profile state.
• hypothesis.name.immutable [open] — Display names are intentionally immutable after registration, but the current path surfaces an unrelated Telegram-validation error.

Remaining unknowns

• Which client and server functions handle display-name updates.
• Whether fresh Telegram proof is required and which identifiers or tokens are passed.
• Whether display-name mutability is intentional.
• Whether the immutable target SHA matches the trusted local checkout.

Canonical context — complete FailureReport snapshot

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        "basis": "Only reporter observations are currently available; no repository or runtime path has yet been inspected."
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        "Whether fresh Telegram proof is required and which identifiers or tokens are passed.",
        "Whether display-name mutability is intentional.",
        "Whether the immutable target SHA matches the trusted local checkout."
      ],
      "recommended_remediation": []
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Need to Clarify",
      "uat_required": true,
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      "scope_in": [
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        "Identify Telegram-validation preconditions and failure branches.",
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      }
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}

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Active diagnosis
• Status: investigating
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 1
• Diagnostic session: active
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-1
• Issue: Alive24/CKBoost#53
• Diagnostic session identity: diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667
• Canonical representation: inline folded snapshot

Active diagnosis

Current facts and evidence

• evidence.issue.symptom [reported] — The Issue author reports that changing the display name consistently fails after several seconds with `Telegram validation failed at server`, while the profile already shows Telegram Verified. Interpretation: The failure is at or reported by a server-side Telegram-validation boundary, but this does not yet establish why validation fails. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.issue.impact [reported] — The Issue author reports that quest participation and other platform functionality are not currently blocked. Interpretation: Reported impact is localized to profile management, consistent with low severity unless broader validation failures are discovered. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.

Current hypotheses

• hypothesis.telegram.revalidation [open] — The display-name update path performs a fresh Telegram validation whose inputs or lookup do not match the already persisted verified-profile state.
• hypothesis.name.immutable [open] — Display names are intentionally immutable after registration, but the current path surfaces an unrelated Telegram-validation error.

Remaining unknowns

• Which client and server functions handle display-name updates.
• Whether fresh Telegram proof is required and which identifiers or tokens are passed.
• Whether display-name mutability is intentional.
• Whether the immutable target SHA matches the trusted local checkout.

Canonical context — complete FailureReport snapshot

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              "method": "Initial hypothesis formation"
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        "status": "open",
        "supporting_evidence": [],
        "contradicting_evidence": [],
        "history": [
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              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Alternative hypothesis capture"
            }
          }
        ]
      }
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    "decisions": [],
    "experiments": [],
    "conclusion": {
      "diagnosis": "Investigation pending: the reported server-side Telegram validation failure has not yet been traced through the trusted checkout.",
      "confidence": {
        "level": "low",
        "basis": "Only reporter observations are currently available; no repository or runtime path has yet been inspected."
      },
      "remaining_uncertainty": [
        "Which client and server functions handle display-name updates.",
        "Whether fresh Telegram proof is required and which identifiers or tokens are passed.",
        "Whether display-name mutability is intentional.",
        "Whether the immutable target SHA matches the trusted local checkout."
      ],
      "recommended_remediation": []
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Need to Clarify",
      "uat_required": true,
      "goal": "Identify the evidence-backed root cause of display-name update failures without implementing a fix.",
      "why_now": "The reported profile-management failure is consistent and gives a misleading Telegram-validation error to an already verified user.",
      "scope_in": [
        "Trace the display-name update flow in the trusted checkout.",
        "Identify Telegram-validation preconditions and failure branches.",
        "Distinguish confirmed repository facts from inference.",
        "Prepare an implementation-ready diagnostic contract only if no material unknown remains."
      ],
      "scope_out": [
        "Implementing a fix.",
        "Creating a pull request.",
        "Changing production data or credentials."
      ],
      "guardrails": [
        "Do not expose Telegram tokens, wallet identifiers, or other user secrets.",
        "Do not mutate production services or user state.",
        "Do not use the diagnostic snapshot as a development branch."
      ],
      "required_outcomes": [
        "Evidence-backed diagnosis of the actual failure path.",
        "Explicit disposition of alternative hypotheses.",
        "Recommended remediation and verification plan without implementation."
      ],
      "verification": {
        "automated": [
          "Identify focused existing or proposed tests that would distinguish successful verified-user updates from Telegram-validation failures."
        ],
        "uat": [
          "Describe a Community Profile display-name update check for an already Telegram-verified account."
        ],
        "context": [
          "Use Issue #53 and repository evidence from the immutable trusted target revision."
        ]
      },
      "residual_risks": [
        "Runtime-only configuration or stale user data may remain unverified without production-safe evidence."
      ]
    },
    "domain": {
      "pack_id": "ckb",
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      "schema_ref": "failure-report/domain/ckb/v1",
      "extension_data": {
        "diagnostic_focus": "Community Profile and Telegram validation; inspect any CKB transaction coupling only if the update path reaches it."
      }
    }
  }
}

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Active diagnosis
• Status: investigating
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 2
• Diagnostic session: active
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-2
• Issue: Alive24/CKBoost#53
• Diagnostic session identity: diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667
• Canonical representation: inline folded snapshot

Active diagnosis

Current facts and evidence

• evidence.issue.symptom [reported] — The Issue author reports that changing the display name consistently fails after several seconds with `Telegram validation failed at server`, while the profile already shows Telegram Verified. Interpretation: The failure is at or reported by a server-side Telegram-validation boundary, but this does not yet establish why validation fails. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.issue.impact [reported] — The Issue author reports that quest participation and other platform functionality are not currently blocked. Interpretation: Reported impact is localized to profile management, consistent with low severity unless broader validation failures are discovered. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.

Current hypotheses

• hypothesis.telegram.revalidation [open] — The display-name update path performs a fresh Telegram validation whose inputs or lookup do not match the already persisted verified-profile state.
• hypothesis.name.immutable [open] — Display names are intentionally immutable after registration, but the current path surfaces an unrelated Telegram-validation error.

Remaining unknowns

• Which client and server functions handle display-name updates.
• Whether fresh Telegram proof is required and which identifiers or tokens are passed.
• Whether display-name mutability is intentional.
• Whether the immutable target SHA matches the trusted local checkout.

Canonical context — complete FailureReport snapshot

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    "updated_at": "2026-07-30T14:37:57.104Z",
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        "preconditions": [
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          "JoyId wallet connected",
          "Profile displays Telegram Verified"
        ],
        "steps": [
          "Navigate to Community Profile.",
          "Choose Edit display name.",
          "Enter a new display name.",
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        ],
        "frequency": "Reported as consistent by the Issue author; not yet independently reproduced."
      }
    },
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              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Initial hypothesis formation"
            }
          }
        ]
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        "contradicting_evidence": [],
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              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Alternative hypothesis capture"
            }
          }
        ]
      }
    ],
    "decisions": [],
    "experiments": [],
    "conclusion": {
      "diagnosis": "Investigation pending: the reported server-side Telegram validation failure has not yet been traced through the trusted checkout.",
      "confidence": {
        "level": "low",
        "basis": "Only reporter observations are currently available; no repository or runtime path has yet been inspected."
      },
      "remaining_uncertainty": [
        "Which client and server functions handle display-name updates.",
        "Whether fresh Telegram proof is required and which identifiers or tokens are passed.",
        "Whether display-name mutability is intentional.",
        "Whether the immutable target SHA matches the trusted local checkout."
      ],
      "recommended_remediation": []
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Need to Clarify",
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      "goal": "Identify the evidence-backed root cause of display-name update failures without implementing a fix.",
      "why_now": "The reported profile-management failure is consistent and gives a misleading Telegram-validation error to an already verified user.",
      "scope_in": [
        "Trace the display-name update flow in the trusted checkout.",
        "Identify Telegram-validation preconditions and failure branches.",
        "Distinguish confirmed repository facts from inference.",
        "Prepare an implementation-ready diagnostic contract only if no material unknown remains."
      ],
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        "Do not use the diagnostic snapshot as a development branch."
      ],
      "required_outcomes": [
        "Evidence-backed diagnosis of the actual failure path.",
        "Explicit disposition of alternative hypotheses.",
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        ],
        "uat": [
          "Describe a Community Profile display-name update check for an already Telegram-verified account."
        ],
        "context": [
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      ]
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      "schema_ref": "failure-report/domain/ckb/v1",
      "extension_data": {
        "diagnostic_focus": "Community Profile and Telegram validation; inspect any CKB transaction coupling only if the update path reaches it."
      }
    }
  }
}

[Alive24]

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Active diagnosis
• Status: investigating
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 3
• Diagnostic session: active
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-3
• Issue: Alive24/CKBoost#53
• Diagnostic session identity: diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667
• Canonical representation: inline folded snapshot

Active diagnosis

Current facts and evidence

• evidence.issue.symptom [reported] — The Issue author reports that changing the display name consistently fails after several seconds with `Telegram validation failed at server`, while the profile already shows Telegram Verified. Interpretation: The failure is at or reported by a server-side Telegram-validation boundary, but this does not yet establish why validation fails. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.issue.impact [reported] — The Issue author reports that quest participation and other platform functionality are not currently blocked. Interpretation: Reported impact is localized to profile management, consistent with low severity unless broader validation failures are discovered. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.

Current hypotheses

• hypothesis.telegram.revalidation [open] — The display-name update path performs a fresh Telegram validation whose inputs or lookup do not match the already persisted verified-profile state.
• hypothesis.name.immutable [open] — Display names are intentionally immutable after registration, but the current path surfaces an unrelated Telegram-validation error.

Remaining unknowns

• Which client and server functions handle display-name updates.
• Whether fresh Telegram proof is required and which identifiers or tokens are passed.
• Whether display-name mutability is intentional.
• Whether the immutable target SHA matches the trusted local checkout.

Canonical context — complete FailureReport snapshot

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          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "Issue body review"
        },
        "artifacts": [
          {
            "ref": "https://github.com/Alive24/CKBoost/issues/53",
            "media_type": "text/html",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.issue.impact",
        "kind": "reported_observation",
        "observed_fact": "The Issue author reports that quest participation and other platform functionality are not currently blocked.",
        "interpretation": "Reported impact is localized to profile management, consistent with low severity unless broader validation failures are discovered.",
        "epistemic_status": "reported",
        "provenance": {
          "phase": "intake",
          "source_type": "issue",
          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "Issue body review"
        },
        "artifacts": [
          {
            "ref": "https://github.com/Alive24/CKBoost/issues/53",
            "media_type": "text/html",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      }
    ],
    "hypotheses": [
      {
        "id": "hypothesis.telegram.revalidation",
        "statement": "The display-name update path performs a fresh Telegram validation whose inputs or lookup do not match the already persisted verified-profile state.",
        "status": "open",
        "supporting_evidence": [
          "evidence.issue.symptom"
        ],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "open",
            "rationale": "Suggested by the reported error and verified-profile state, but repository and runtime evidence are still required.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Initial hypothesis formation"
            }
          }
        ]
      },
      {
        "id": "hypothesis.name.immutable",
        "statement": "Display names are intentionally immutable after registration, but the current path surfaces an unrelated Telegram-validation error.",
        "status": "open",
        "supporting_evidence": [],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "open",
            "rationale": "The Issue author raised immutability as an alternative explanation; repository evidence is needed.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Alternative hypothesis capture"
            }
          }
        ]
      }
    ],
    "decisions": [],
    "experiments": [],
    "conclusion": {
      "diagnosis": "Investigation pending: the reported server-side Telegram validation failure has not yet been traced through the trusted checkout.",
      "confidence": {
        "level": "low",
        "basis": "Only reporter observations are currently available; no repository or runtime path has yet been inspected."
      },
      "remaining_uncertainty": [
        "Which client and server functions handle display-name updates.",
        "Whether fresh Telegram proof is required and which identifiers or tokens are passed.",
        "Whether display-name mutability is intentional.",
        "Whether the immutable target SHA matches the trusted local checkout."
      ],
      "recommended_remediation": []
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Need to Clarify",
      "uat_required": true,
      "goal": "Identify the evidence-backed root cause of display-name update failures without implementing a fix.",
      "why_now": "The reported profile-management failure is consistent and gives a misleading Telegram-validation error to an already verified user.",
      "scope_in": [
        "Trace the display-name update flow in the trusted checkout.",
        "Identify Telegram-validation preconditions and failure branches.",
        "Distinguish confirmed repository facts from inference.",
        "Prepare an implementation-ready diagnostic contract only if no material unknown remains."
      ],
      "scope_out": [
        "Implementing a fix.",
        "Creating a pull request.",
        "Changing production data or credentials."
      ],
      "guardrails": [
        "Do not expose Telegram tokens, wallet identifiers, or other user secrets.",
        "Do not mutate production services or user state.",
        "Do not use the diagnostic snapshot as a development branch."
      ],
      "required_outcomes": [
        "Evidence-backed diagnosis of the actual failure path.",
        "Explicit disposition of alternative hypotheses.",
        "Recommended remediation and verification plan without implementation."
      ],
      "verification": {
        "automated": [
          "Identify focused existing or proposed tests that would distinguish successful verified-user updates from Telegram-validation failures."
        ],
        "uat": [
          "Describe a Community Profile display-name update check for an already Telegram-verified account."
        ],
        "context": [
          "Use Issue #53 and repository evidence from the immutable trusted target revision."
        ]
      },
      "residual_risks": [
        "Runtime-only configuration or stale user data may remain unverified without production-safe evidence."
      ]
    },
    "domain": {
      "pack_id": "ckb",
      "pack_version": "1",
      "schema_ref": "failure-report/domain/ckb/v1",
      "extension_data": {
        "diagnostic_focus": "Community Profile and Telegram validation; inspect any CKB transaction coupling only if the update path reaches it."
      }
    }
  }
}

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Completed diagnosis
• Status: diagnosed
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 4
• Diagnostic session: active
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-4
• Issue: Alive24/CKBoost#53
• Diagnostic session identity: diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667
• Canonical representation: inline folded snapshot

Completed diagnosis

Diagnosis

Display-name edits are intended to be mutable, but `updateProfileDisplayName` sends every profile update through the proxy-auth helper, which requires `/api/telegram-authenticate` to replay and revalidate stored Telegram login data before signing. Historical Telegram login proof expires under the validator TTL and therefore blocks unrelated later profile edits; additionally, the replay code omits the originally signed `last_name` field, which can independently invalidate the Telegram hash. The generic client error is thrown on any non-OK response from this pre-broadcast server boundary, so the failure is not a wallet, RPC, or CKB script rejection.

Confidence

high — The exact error site, client-to-server call path, server replay logic, documented TTL, signed-field mismatch, mutation whitelist, and pre-broadcast ordering were verified at immutable revision a2f9885. Only the reporter-specific immediate trigger is not runtime-confirmed.

Key evidence

• evidence.issue.symptom [reported] — The Issue author reports consistent display-name update failure with `Telegram validation failed at server` while the profile shows Telegram Verified. Interpretation: The displayed status and the server's fresh proof-validation result are not equivalent. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.repo.flow [verified] — Community Profile save calls the display-name provider mutation, which calls `updateProfileDisplayName`; that builds a `profile_data` update and routes it through `sendTransactionWithSignatureForProxyAuthentication`. Interpretation: A profile-only edit is coupled to proxy authentication before broadcast.
• evidence.repo.emission [verified] — `sendTransactionWithSignatureForProxyAuthentication` posts the transaction to `/api/telegram-authenticate`; any non-OK response causes the client to throw the exact message `Telegram validation failed at server`. Interpretation: The first failing boundary for this symptom is the server validation/signing request, before wallet broadcast or CKB script execution.
• evidence.repo.replay [verified] — The Netlify function decodes stored `identity_verification_data`, reconstructs Telegram authentication input, and calls `AuthDataValidator.validate` for stored verification entries before server signing. Interpretation: The endpoint treats historical Telegram login data as a replayable proof for later unrelated profile edits.
• evidence.repo.ttl [verified] — Deployment guidance documents expired Telegram authentication as a failure mode and identifies the validator's default time-to-live as 10 minutes. Interpretation: A stored login payload naturally becomes invalid long before a later display-name edit, making expiry the likely dominant runtime trigger.
• evidence.repo.last-name [verified] — The identity page captures Telegram `last_name` as part of the signed redirect data, but the server's later reconstructed validation input omits `last_name`. Interpretation: For users whose original signed payload included `last_name`, replay reconstruction can fail hash validation independently of proof age.
• evidence.repo.mutable [verified] — The server explicitly whitelists `profile_data` as mutable, and the UI provides a dedicated display-name editor. Interpretation: Display names are intended to be mutable; intentional immutability is not the cause.

Remaining uncertainty

• For the reporter's particular stored record, whether the immediate rejection was TTL expiry, `last_name` omission, or both.
• Whether deployed configuration overrides the validator's documented default TTL.

Residual risks

• The reporter-specific immediate trigger was not observed in live logs, though both trigger classes are covered by the required outcomes.
• Deployed TTL overrides may affect reproduction timing but not the identified coupling defect.

Recommended remediation

• Decouple profile-only mutations from replay of one-time Telegram login proof while preserving authorization and field-whitelist enforcement.
• Represent Telegram linkage with a durable verified attestation or normalized verified record rather than reusing raw login query parameters.
• If replay remains anywhere, preserve the complete signed Telegram field set, including optional `last_name`, with canonical absent-field handling.
• Add privacy-bounded failure telemetry that distinguishes expired proof from malformed replay without logging tokens, hashes, raw transactions, witnesses, or personal identifiers.
• Add regression coverage for profile updates after Telegram proof expiry and for Telegram payloads containing `last_name`.

Canonical context — complete FailureReport snapshot

{
  "entry": {
    "schema_version": "failure-report-workpad-entry/v2",
    "producer": {
      "id": "failure-report-local",
      "github_actor_id": "20827211"
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    "logical_session_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53",
    "entry_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-4",
    "revision": 4,
    "predecessor_comment_ref": "5132211572",
    "continuation_kind": "capacity"
  },
  "failure_report": {
    "id": "failure-report/Alive24-CKBoost/53",
    "schema_version": "failure-report/v1",
    "status": "diagnosed",
    "created_at": "2026-07-30T00:00:00Z",
    "updated_at": "2026-07-30T14:44:39.618Z",
    "shared_context": {
      "provider": "github_issue",
      "repository": "Alive24/CKBoost",
      "issue_number": 53,
      "issue_url": "https://github.com/Alive24/CKBoost/issues/53",
      "workpad_marker": "<!-- failure-report-workpad -->",
      "workpad_comment_ref": "5132245088",
      "workpad_revision": 4,
      "workpad_logical_session_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53",
      "workpad_entry_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-4",
      "workpad_producer_id": "failure-report-local",
      "workpad_predecessor_comment_ref": "5132211572",
      "synced_at": "2026-07-30T14:44:39.618Z"
    },
    "diagnostic_session": {
      "lifecycle": "active",
      "domain_extensions": [
        "ckb"
      ],
      "backend_id": "codex_app_server",
      "codex_thread_id": "019fb375-e64c-7223-9832-6187a3a3d87a",
      "worktree": {
        "identity": "diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667",
        "base_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "head_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0"
      },
      "diagnostic_branch_slug": "bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v",
      "last_diagnosed_at": "2026-07-30T14:39:43.547Z"
    },
    "diagnostic_completions": [
      {
        "schema_version": "failure-report/diagnostic-completion/v1",
        "completion_id": "diagnostic-completion/2f9e6c87fb456c0ae634b55a694ad7e608ab604831c99ac0b9fc41412073d621",
        "report_id": "failure-report/Alive24-CKBoost/53",
        "target_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "diagnostic_session_identity": "diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667",
        "codex_thread_id": "019fb375-e64c-7223-9832-6187a3a3d87a",
        "observed_worktree_head": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "outcome": {
          "evidence": [],
          "operation_evidence": [],
          "hypotheses": [],
          "experiments": []
        },
        "metadata": {
          "completed_at": "2026-07-30T14:39:43.547Z",
          "owner": "root",
          "provider": "codex_app_server",
          "provider_finish_reason": "completed"
        }
      }
    ],
    "origin": {
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      "reporter": "github-issue-reporter",
      "related_work": [
        {
          "kind": "github_issue",
          "ref": "https://github.com/Alive24/CKBoost/issues/53"
        },
        {
          "kind": "commit",
          "ref": "https://github.com/Alive24/CKBoost/commit/a2f98850862a8bc9ef9bb08c364ef6e8f03461a0"
        }
      ]
    },
    "target": {
      "repository": "Alive24/CKBoost",
      "revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
      "components": [
        "Community Profile display-name update",
        "Telegram proxy-auth validation",
        "Stored Telegram verification replay"
      ],
      "environment": [
        {
          "name": "reported_browser",
          "value": "Chrome Desktop"
        },
        {
          "name": "reported_wallet",
          "value": "JoyId connected"
        },
        {
          "name": "reported_telegram_status",
          "value": "Verified"
        }
      ]
    },
    "severity": "low",
    "symptom": {
      "observed_behavior": [
        "Saving a changed Community Profile display name buffers for several seconds and fails with `Telegram validation failed at server`.",
        "The display name remains unchanged although the profile shows Telegram Verified."
      ],
      "expected_behavior": [
        "A Telegram-linked user can change a mutable display name without replaying an expired one-time Telegram login proof."
      ],
      "raw_error_summary": "Telegram validation failed at server",
      "first_seen_at": null,
      "reproduction": {
        "preconditions": [
          "Authenticated CKBoost user",
          "JoyId wallet connected",
          "Profile displays Telegram Verified"
        ],
        "steps": [
          "Navigate to Community Profile.",
          "Choose Edit display name.",
          "Enter a new display name.",
          "Save changes."
        ],
        "frequency": "Reported as consistent; repository tracing confirms the deterministic validation dependency, but the reporter's live record was not inspected."
      }
    },
    "inputs": [
      {
        "id": "input.issue.53",
        "kind": "github_issue",
        "artifact": {
          "ref": "https://github.com/Alive24/CKBoost/issues/53",
          "media_type": "text/html",
          "sensitivity": "public",
          "retention": "durable"
        },
        "provenance": {
          "phase": "intake",
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          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "GitHub Issue shared-context read"
        }
      },
      {
        "id": "input.target.revision",
        "kind": "repository_revision",
        "artifact": {
          "ref": "https://github.com/Alive24/CKBoost/commit/a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
          "media_type": "text/html",
          "sensitivity": "public",
          "retention": "durable"
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        "provenance": {
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          "source_type": "repository",
          "source_ref": "Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Root-managed detached worktree verification and read-only source trace"
        }
      }
    ],
    "evidence": [
      {
        "id": "evidence.issue.symptom",
        "kind": "reported_observation",
        "observed_fact": "The Issue author reports consistent display-name update failure with `Telegram validation failed at server` while the profile shows Telegram Verified.",
        "interpretation": "The displayed status and the server's fresh proof-validation result are not equivalent.",
        "epistemic_status": "reported",
        "provenance": {
          "phase": "intake",
          "source_type": "issue",
          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "Issue body review"
        },
        "artifacts": [
          {
            "ref": "https://github.com/Alive24/CKBoost/issues/53",
            "media_type": "text/html",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.flow",
        "kind": "repository_fact",
        "observed_fact": "Community Profile save calls the display-name provider mutation, which calls `updateProfileDisplayName`; that builds a `profile_data` update and routes it through `sendTransactionWithSignatureForProxyAuthentication`.",
        "interpretation": "A profile-only edit is coupled to proxy authentication before broadcast.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/components/profile/profile-content.tsx:613; dapp/lib/providers/user-provider.tsx:450; dapp/lib/services/user-service.ts:1216",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Read-only call-path trace in immutable worktree"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/lib/services/user-service.ts#L1216",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.emission",
        "kind": "repository_fact",
        "observed_fact": "`sendTransactionWithSignatureForProxyAuthentication` posts the transaction to `/api/telegram-authenticate`; any non-OK response causes the client to throw the exact message `Telegram validation failed at server`.",
        "interpretation": "The first failing boundary for this symptom is the server validation/signing request, before wallet broadcast or CKB script execution.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/lib/services/user-service.ts:189",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Exact-string search and branch trace"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/lib/services/user-service.ts#L189",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.replay",
        "kind": "repository_fact",
        "observed_fact": "The Netlify function decodes stored `identity_verification_data`, reconstructs Telegram authentication input, and calls `AuthDataValidator.validate` for stored verification entries before server signing.",
        "interpretation": "The endpoint treats historical Telegram login data as a replayable proof for later unrelated profile edits.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/netlify/functions/telegram-authenticate.ts:142,217,223,326",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Read-only server-handler trace"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L217-L326",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.ttl",
        "kind": "repository_fact",
        "observed_fact": "Deployment guidance documents expired Telegram authentication as a failure mode and identifies the validator's default time-to-live as 10 minutes.",
        "interpretation": "A stored login payload naturally becomes invalid long before a later display-name edit, making expiry the likely dominant runtime trigger.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/DEPLOYMENT.md:126",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Documentation and validator-call review"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/DEPLOYMENT.md#L126",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.last-name",
        "kind": "repository_fact",
        "observed_fact": "The identity page captures Telegram `last_name` as part of the signed redirect data, but the server's later reconstructed validation input omits `last_name`.",
        "interpretation": "For users whose original signed payload included `last_name`, replay reconstruction can fail hash validation independently of proof age.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/app/identity/page.tsx:277; dapp/netlify/functions/telegram-authenticate.ts:226",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Writer/replay field comparison"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L226",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.mutable",
        "kind": "repository_fact",
        "observed_fact": "The server explicitly whitelists `profile_data` as mutable, and the UI provides a dedicated display-name editor.",
        "interpretation": "Display names are intended to be mutable; intentional immutability is not the cause.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/netlify/functions/telegram-authenticate.ts:187; dapp/components/profile/profile-content.tsx:1614",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Mutation-policy and UI review"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L187",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      }
    ],
    "hypotheses": [
      {
        "id": "hypothesis.telegram.revalidation",
        "statement": "The display-name update fails because a profile-only mutation is forced through replay validation of stored Telegram login proof.",
        "status": "confirmed",
        "supporting_evidence": [
          "evidence.repo.flow",
          "evidence.repo.emission",
          "evidence.repo.replay",
          "evidence.repo.ttl"
        ],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "open",
            "rationale": "Initially suggested by the Issue's verified-profile state and error text.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Initial hypothesis"
            }
          },
          {
            "status": "confirmed",
            "rationale": "The immutable source trace proves the mandatory replay-validation dependency and exact error branch; documented TTL explains why historical proof is rejected.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.flow,evidence.repo.emission,evidence.repo.replay,evidence.repo.ttl",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Evidence synthesis"
            }
          }
        ]
      },
      {
        "id": "hypothesis.last-name",
        "statement": "Replay validation can also fail because the server omits a signed `last_name` field when reconstructing Telegram authentication data.",
        "status": "confirmed",
        "supporting_evidence": [
          "evidence.repo.last-name"
        ],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "confirmed",
            "rationale": "The capture and replay paths demonstrably use different signed field sets.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.last-name",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Signed-field comparison"
            }
          }
        ]
      },
      {
        "id": "hypothesis.name.immutable",
        "statement": "Display names are intentionally immutable after registration.",
        "status": "rejected",
        "supporting_evidence": [],
        "contradicting_evidence": [
          "evidence.repo.mutable"
        ],
        "history": [
          {
            "status": "open",
            "rationale": "Raised as an alternative in the Issue.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Alternative capture"
            }
          },
          {
            "status": "rejected",
            "rationale": "The UI and server mutation whitelist explicitly support profile-data edits.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.mutable",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Policy review"
            }
          }
        ]
      },
      {
        "id": "hypothesis.ckb-script",
        "statement": "The reported message is caused by CKB RPC, broadcast, or on-chain script rejection.",
        "status": "rejected",
        "supporting_evidence": [],
        "contradicting_evidence": [
          "evidence.repo.emission"
        ],
        "history": [
          {
            "status": "rejected",
            "rationale": "The exact failure is thrown after a non-OK server-validation response and before broadcast or script execution.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.emission",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Boundary ordering trace"
            }
          }
        ]
      }
    ],
    "decisions": [],
    "experiments": [
      {
        "id": "experiment.static.call-path",
        "question": "Where is the exact reported error emitted and which boundary precedes it?",
        "proposed_action": "Search the immutable checkout for the exact string and trace callers and server handler without modifying files.",
        "approval": {
          "required": false,
          "status": "not_required"
        },
        "baseline_evidence": [
          "evidence.issue.symptom"
        ],
        "result_evidence": [
          "evidence.repo.flow",
          "evidence.repo.emission",
          "evidence.repo.replay"
        ],
        "outcome": "confirmed",
        "interpretation": "The display-name path deterministically reaches Telegram replay validation; server rejection is translated to the reported generic error before broadcast."
      },
      {
        "id": "experiment.static.signed-fields",
        "question": "Can replay reconstruction differ from the original signed Telegram payload?",
        "proposed_action": "Compare identity-page capture fields with server reconstruction fields.",
        "approval": {
          "required": false,
          "status": "not_required"
        },
        "baseline_evidence": [
          "evidence.repo.replay"
        ],
        "result_evidence": [
          "evidence.repo.last-name"
        ],
        "outcome": "confirmed",
        "interpretation": "`last_name` is captured but omitted during replay reconstruction, creating an independent hash-validation defect."
      },
      {
        "id": "experiment.runtime.user-record",
        "question": "Was the reporter's specific rejection caused by TTL expiry, omitted `last_name`, or both?",
        "proposed_action": "Inspect privacy-safe deployed failure logs or reproduce using a sanitized fixture representing the reporter's stored verification shape.",
        "approval": {
          "required": true,
          "status": "pending",
          "authority": "CKBoost operator with production-log or sanitized-fixture access"
        },
        "baseline_evidence": [
          "evidence.repo.ttl",
          "evidence.repo.last-name"
        ],
        "result_evidence": [],
        "outcome": "not_run",
        "interpretation": "Not needed to establish the architectural root cause or implementation scope; it remains a residual trigger-level uncertainty."
      }
    ],
    "conclusion": {
      "diagnosis": "Display-name edits are intended to be mutable, but `updateProfileDisplayName` sends every profile update through the proxy-auth helper, which requires `/api/telegram-authenticate` to replay and revalidate stored Telegram login data before signing. Historical Telegram login proof expires under the validator TTL and therefore blocks unrelated later profile edits; additionally, the replay code omits the originally signed `last_name` field, which can independently invalidate the Telegram hash. The generic client error is thrown on any non-OK response from this pre-broadcast server boundary, so the failure is not a wallet, RPC, or CKB script rejection.",
      "confidence": {
        "level": "high",
        "basis": "The exact error site, client-to-server call path, server replay logic, documented TTL, signed-field mismatch, mutation whitelist, and pre-broadcast ordering were verified at immutable revision a2f98850862a8bc9ef9bb08c364ef6e8f03461a0. Only the reporter-specific immediate trigger is not runtime-confirmed."
      },
      "remaining_uncertainty": [
        "For the reporter's particular stored record, whether the immediate rejection was TTL expiry, `last_name` omission, or both.",
        "Whether deployed configuration overrides the validator's documented default TTL."
      ],
      "recommended_remediation": [
        "Decouple profile-only mutations from replay of one-time Telegram login proof while preserving authorization and field-whitelist enforcement.",
        "Represent Telegram linkage with a durable verified attestation or normalized verified record rather than reusing raw login query parameters.",
        "If replay remains anywhere, preserve the complete signed Telegram field set, including optional `last_name`, with canonical absent-field handling.",
        "Add privacy-bounded failure telemetry that distinguishes expired proof from malformed replay without logging tokens, hashes, raw transactions, witnesses, or personal identifiers.",
        "Add regression coverage for profile updates after Telegram proof expiry and for Telegram payloads containing `last_name`."
      ]
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Blocked",
      "uat_required": true,
      "goal": "Allow authorized Telegram-linked users to update display names without replaying stale or malformed one-time Telegram login proof.",
      "why_now": "The current proxy-auth design makes an unrelated mutable profile field depend on transient Telegram login data and produces a misleading generic error.",
      "scope_in": [
        "Refactor authorization for profile-only updates so it does not require historical Telegram-login replay.",
        "Preserve server-side allowed-field validation and transaction authorization.",
        "Correct canonical Telegram signed-field handling wherever replay remains.",
        "Normalize verification-data readers and writers if needed by the selected durable-attestation design.",
        "Add privacy-safe diagnostic classification for Telegram validation failures.",
        "Add focused automated and UAT regression coverage."
      ],
      "scope_out": [
        "Changing display names to immutable.",
        "Weakening authorization for non-whitelisted user fields.",
        "Using the diagnostic snapshot as an implementation branch.",
        "Inspecting or changing production user data as part of implementation."
      ],
      "guardrails": [
        "Never log Telegram bot tokens, raw hashes, complete Telegram payloads, wallet identifiers, raw transaction bytes, or witnesses.",
        "Keep non-whitelisted user-cell mutations rejected.",
        "Do not require production secrets for automated tests.",
        "Do not implement directly on the diagnostic snapshot."
      ],
      "required_outcomes": [
        "A previously Telegram-verified user can update display name after the original Telegram login proof has expired.",
        "Users whose original Telegram payload included `last_name` are not rejected due to replay-field loss.",
        "The server preserves authorization and allowed-field enforcement for profile updates.",
        "Failures are classified sufficiently to distinguish expired proof from malformed signed input without exposing sensitive data."
      ],
      "verification": {
        "automated": [
          "Unit-test the profile update authorization path with expired historical Telegram auth data.",
          "Test Telegram validation/reconstruction with and without optional `last_name`.",
          "Test rejection of non-whitelisted field changes.",
          "Test privacy-safe failure classification without secret or personal fields."
        ],
        "uat": [
          "With a Telegram-linked test account whose original auth is older than the validator TTL, change display name and confirm the update transaction completes.",
          "Repeat with a test Telegram payload containing `last_name`.",
          "Attempt a non-whitelisted field mutation and confirm rejection."
        ],
        "context": [
          "Run against the target implementation revision with fixtures only; no production-user mutation is required."
        ]
      },
      "residual_risks": [
        "The reporter-specific immediate trigger was not observed in live logs, though both trigger classes are covered by the required outcomes.",
        "Deployed TTL overrides may affect reproduction timing but not the identified coupling defect."
      ]
    },
    "domain": {
      "pack_id": "ckb",
      "pack_version": "1",
      "schema_ref": "failure-report/domain/ckb/v1",
      "extension_data": {
        "first_failure_layer": "transaction_assembly",
        "first_failure_boundary": "Netlify /api/telegram-authenticate pre-signing validation",
        "ckb_script_involvement": "rejected_for_reported_symptom",
        "runtime_trigger_uncertainty": "TTL expiry versus omitted signed last_name field",
        "diagnostic_only": true
      }
    }
  }
}

[Alive24]

FailureReport update

• Report: failure-report/Alive24-CKBoost/53
• Stage: Completed diagnosis
• Status: diagnosed
• Severity: low
• Repository: Alive24/CKBoost
• Immutable target revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0
• Workpad revision: 5
• Diagnostic session: finalized
• Logical session: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53
• Authoritative entry: github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-5
• Issue: Alive24/CKBoost#53
• Diagnostic session identity: diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667
• Canonical representation: inline folded snapshot

Completed diagnosis

Diagnosis

Display-name edits are intended to be mutable, but `updateProfileDisplayName` sends every profile update through the proxy-auth helper, which requires `/api/telegram-authenticate` to replay and revalidate stored Telegram login data before signing. Historical Telegram login proof expires under the validator TTL and therefore blocks unrelated later profile edits; additionally, the replay code omits the originally signed `last_name` field, which can independently invalidate the Telegram hash. The generic client error is thrown on any non-OK response from this pre-broadcast server boundary, so the failure is not a wallet, RPC, or CKB script rejection.

Confidence

high — The exact error site, client-to-server call path, server replay logic, documented TTL, signed-field mismatch, mutation whitelist, and pre-broadcast ordering were verified at immutable revision a2f9885. Only the reporter-specific immediate trigger is not runtime-confirmed.

Key evidence

• evidence.issue.symptom [reported] — The Issue author reports consistent display-name update failure with `Telegram validation failed at server` while the profile shows Telegram Verified. Interpretation: The displayed status and the server's fresh proof-validation result are not equivalent. Public evidence: Bug: Unable to update display name; "Telegram validation failed at server" despite verified Telegram account #53.
• evidence.repo.flow [verified] — Community Profile save calls the display-name provider mutation, which calls `updateProfileDisplayName`; that builds a `profile_data` update and routes it through `sendTransactionWithSignatureForProxyAuthentication`. Interpretation: A profile-only edit is coupled to proxy authentication before broadcast.
• evidence.repo.emission [verified] — `sendTransactionWithSignatureForProxyAuthentication` posts the transaction to `/api/telegram-authenticate`; any non-OK response causes the client to throw the exact message `Telegram validation failed at server`. Interpretation: The first failing boundary for this symptom is the server validation/signing request, before wallet broadcast or CKB script execution.
• evidence.repo.replay [verified] — The Netlify function decodes stored `identity_verification_data`, reconstructs Telegram authentication input, and calls `AuthDataValidator.validate` for stored verification entries before server signing. Interpretation: The endpoint treats historical Telegram login data as a replayable proof for later unrelated profile edits.
• evidence.repo.ttl [verified] — Deployment guidance documents expired Telegram authentication as a failure mode and identifies the validator's default time-to-live as 10 minutes. Interpretation: A stored login payload naturally becomes invalid long before a later display-name edit, making expiry the likely dominant runtime trigger.
• evidence.repo.last-name [verified] — The identity page captures Telegram `last_name` as part of the signed redirect data, but the server's later reconstructed validation input omits `last_name`. Interpretation: For users whose original signed payload included `last_name`, replay reconstruction can fail hash validation independently of proof age.
• evidence.repo.mutable [verified] — The server explicitly whitelists `profile_data` as mutable, and the UI provides a dedicated display-name editor. Interpretation: Display names are intended to be mutable; intentional immutability is not the cause.

Remaining uncertainty

• For the reporter's particular stored record, whether the immediate rejection was TTL expiry, `last_name` omission, or both.
• Whether deployed configuration overrides the validator's documented default TTL.

Residual risks

• The reporter-specific immediate trigger was not observed in live logs, though both trigger classes are covered by the required outcomes.
• Deployed TTL overrides may affect reproduction timing but not the identified coupling defect.

Recommended remediation

• Decouple profile-only mutations from replay of one-time Telegram login proof while preserving authorization and field-whitelist enforcement.
• Represent Telegram linkage with a durable verified attestation or normalized verified record rather than reusing raw login query parameters.
• If replay remains anywhere, preserve the complete signed Telegram field set, including optional `last_name`, with canonical absent-field handling.
• Add privacy-bounded failure telemetry that distinguishes expired proof from malformed replay without logging tokens, hashes, raw transactions, witnesses, or personal identifiers.
• Add regression coverage for profile updates after Telegram proof expiry and for Telegram payloads containing `last_name`.

Diagnostic snapshot

• Branch: diagnostic/53-bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v (diagnostic_snapshot_only)
• Immutable snapshot revision: a2f98850862a8bc9ef9bb08c364ef6e8f03461a0

Canonical context — complete FailureReport snapshot

{
  "entry": {
    "schema_version": "failure-report-workpad-entry/v2",
    "producer": {
      "id": "failure-report-local",
      "github_actor_id": "20827211"
    },
    "logical_session_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53",
    "entry_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-5",
    "revision": 5,
    "predecessor_comment_ref": "5132245088",
    "continuation_kind": "capacity"
  },
  "failure_report": {
    "id": "failure-report/Alive24-CKBoost/53",
    "schema_version": "failure-report/v1",
    "status": "diagnosed",
    "created_at": "2026-07-30T00:00:00Z",
    "updated_at": "2026-07-30T14:44:53.727Z",
    "shared_context": {
      "provider": "github_issue",
      "repository": "Alive24/CKBoost",
      "issue_number": 53,
      "issue_url": "https://github.com/Alive24/CKBoost/issues/53",
      "workpad_marker": "<!-- failure-report-workpad -->",
      "workpad_revision": 5,
      "workpad_logical_session_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53",
      "workpad_entry_id": "github-issue/Alive24/CKBoost/53/failure-report/Alive24-CKBoost/53/revision-5",
      "workpad_producer_id": "failure-report-local",
      "workpad_predecessor_comment_ref": "5132245088",
      "synced_at": "2026-07-30T14:44:53.727Z"
    },
    "diagnostic_session": {
      "lifecycle": "finalized",
      "domain_extensions": [
        "ckb"
      ],
      "backend_id": "codex_app_server",
      "codex_thread_id": "019fb375-e64c-7223-9832-6187a3a3d87a",
      "worktree": {
        "identity": "diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667",
        "base_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "head_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0"
      },
      "diagnostic_branch_slug": "bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v",
      "diagnostic_branch": {
        "name": "diagnostic/53-bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v",
        "head_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "remote_name": "origin",
        "remote_ref": "refs/heads/diagnostic/53-bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v",
        "remote_url": "https://github.com/Alive24/CKBoost/tree/diagnostic/53-bug-unable-to-update-display-name-telegram-validation-failed-at-server-despite-v",
        "pushed_at": "2026-07-30T14:44:51.055Z",
        "finalized_at": "2026-07-30T14:44:51.055Z",
        "reuse_policy": "diagnostic_snapshot_only"
      },
      "last_diagnosed_at": "2026-07-30T14:39:43.547Z"
    },
    "diagnostic_completions": [
      {
        "schema_version": "failure-report/diagnostic-completion/v1",
        "completion_id": "diagnostic-completion/2f9e6c87fb456c0ae634b55a694ad7e608ab604831c99ac0b9fc41412073d621",
        "report_id": "failure-report/Alive24-CKBoost/53",
        "target_revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "diagnostic_session_identity": "diagnostic-failure-report-Alive24-CKBoost-53-922a6feca667",
        "codex_thread_id": "019fb375-e64c-7223-9832-6187a3a3d87a",
        "observed_worktree_head": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
        "outcome": {
          "evidence": [],
          "operation_evidence": [],
          "hypotheses": [],
          "experiments": []
        },
        "metadata": {
          "completed_at": "2026-07-30T14:39:43.547Z",
          "owner": "root",
          "provider": "codex_app_server",
          "provider_finish_reason": "completed"
        }
      }
    ],
    "origin": {
      "source": "github_issue",
      "reporter": "github-issue-reporter",
      "related_work": [
        {
          "kind": "github_issue",
          "ref": "https://github.com/Alive24/CKBoost/issues/53"
        },
        {
          "kind": "commit",
          "ref": "https://github.com/Alive24/CKBoost/commit/a2f98850862a8bc9ef9bb08c364ef6e8f03461a0"
        }
      ]
    },
    "target": {
      "repository": "Alive24/CKBoost",
      "revision": "a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
      "components": [
        "Community Profile display-name update",
        "Telegram proxy-auth validation",
        "Stored Telegram verification replay"
      ],
      "environment": [
        {
          "name": "reported_browser",
          "value": "Chrome Desktop"
        },
        {
          "name": "reported_wallet",
          "value": "JoyId connected"
        },
        {
          "name": "reported_telegram_status",
          "value": "Verified"
        }
      ]
    },
    "severity": "low",
    "symptom": {
      "observed_behavior": [
        "Saving a changed Community Profile display name buffers for several seconds and fails with `Telegram validation failed at server`.",
        "The display name remains unchanged although the profile shows Telegram Verified."
      ],
      "expected_behavior": [
        "A Telegram-linked user can change a mutable display name without replaying an expired one-time Telegram login proof."
      ],
      "raw_error_summary": "Telegram validation failed at server",
      "first_seen_at": null,
      "reproduction": {
        "preconditions": [
          "Authenticated CKBoost user",
          "JoyId wallet connected",
          "Profile displays Telegram Verified"
        ],
        "steps": [
          "Navigate to Community Profile.",
          "Choose Edit display name.",
          "Enter a new display name.",
          "Save changes."
        ],
        "frequency": "Reported as consistent; repository tracing confirms the deterministic validation dependency, but the reporter's live record was not inspected."
      }
    },
    "inputs": [
      {
        "id": "input.issue.53",
        "kind": "github_issue",
        "artifact": {
          "ref": "https://github.com/Alive24/CKBoost/issues/53",
          "media_type": "text/html",
          "sensitivity": "public",
          "retention": "durable"
        },
        "provenance": {
          "phase": "intake",
          "source_type": "issue",
          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "GitHub Issue shared-context read"
        }
      },
      {
        "id": "input.target.revision",
        "kind": "repository_revision",
        "artifact": {
          "ref": "https://github.com/Alive24/CKBoost/commit/a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
          "media_type": "text/html",
          "sensitivity": "public",
          "retention": "durable"
        },
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Root-managed detached worktree verification and read-only source trace"
        }
      }
    ],
    "evidence": [
      {
        "id": "evidence.issue.symptom",
        "kind": "reported_observation",
        "observed_fact": "The Issue author reports consistent display-name update failure with `Telegram validation failed at server` while the profile shows Telegram Verified.",
        "interpretation": "The displayed status and the server's fresh proof-validation result are not equivalent.",
        "epistemic_status": "reported",
        "provenance": {
          "phase": "intake",
          "source_type": "issue",
          "source_ref": "Alive24/CKBoost#53",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T00:00:00Z",
          "method": "Issue body review"
        },
        "artifacts": [
          {
            "ref": "https://github.com/Alive24/CKBoost/issues/53",
            "media_type": "text/html",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.flow",
        "kind": "repository_fact",
        "observed_fact": "Community Profile save calls the display-name provider mutation, which calls `updateProfileDisplayName`; that builds a `profile_data` update and routes it through `sendTransactionWithSignatureForProxyAuthentication`.",
        "interpretation": "A profile-only edit is coupled to proxy authentication before broadcast.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/components/profile/profile-content.tsx:613; dapp/lib/providers/user-provider.tsx:450; dapp/lib/services/user-service.ts:1216",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Read-only call-path trace in immutable worktree"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/lib/services/user-service.ts#L1216",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.emission",
        "kind": "repository_fact",
        "observed_fact": "`sendTransactionWithSignatureForProxyAuthentication` posts the transaction to `/api/telegram-authenticate`; any non-OK response causes the client to throw the exact message `Telegram validation failed at server`.",
        "interpretation": "The first failing boundary for this symptom is the server validation/signing request, before wallet broadcast or CKB script execution.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/lib/services/user-service.ts:189",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Exact-string search and branch trace"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/lib/services/user-service.ts#L189",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.replay",
        "kind": "repository_fact",
        "observed_fact": "The Netlify function decodes stored `identity_verification_data`, reconstructs Telegram authentication input, and calls `AuthDataValidator.validate` for stored verification entries before server signing.",
        "interpretation": "The endpoint treats historical Telegram login data as a replayable proof for later unrelated profile edits.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/netlify/functions/telegram-authenticate.ts:142,217,223,326",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Read-only server-handler trace"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L217-L326",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.ttl",
        "kind": "repository_fact",
        "observed_fact": "Deployment guidance documents expired Telegram authentication as a failure mode and identifies the validator's default time-to-live as 10 minutes.",
        "interpretation": "A stored login payload naturally becomes invalid long before a later display-name edit, making expiry the likely dominant runtime trigger.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/DEPLOYMENT.md:126",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Documentation and validator-call review"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/DEPLOYMENT.md#L126",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.last-name",
        "kind": "repository_fact",
        "observed_fact": "The identity page captures Telegram `last_name` as part of the signed redirect data, but the server's later reconstructed validation input omits `last_name`.",
        "interpretation": "For users whose original signed payload included `last_name`, replay reconstruction can fail hash validation independently of proof age.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/app/identity/page.tsx:277; dapp/netlify/functions/telegram-authenticate.ts:226",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Writer/replay field comparison"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L226",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      },
      {
        "id": "evidence.repo.mutable",
        "kind": "repository_fact",
        "observed_fact": "The server explicitly whitelists `profile_data` as mutable, and the UI provides a dedicated display-name editor.",
        "interpretation": "Display names are intended to be mutable; intentional immutability is not the cause.",
        "epistemic_status": "verified",
        "provenance": {
          "phase": "investigation",
          "source_type": "repository",
          "source_ref": "dapp/netlify/functions/telegram-authenticate.ts:187; dapp/components/profile/profile-content.tsx:1614",
          "collector": "failure-report-root",
          "collected_at": "2026-07-30T14:39:43Z",
          "method": "Mutation-policy and UI review"
        },
        "artifacts": [
          {
            "ref": "repo:Alive24/CKBoost@a2f98850862a8bc9ef9bb08c364ef6e8f03461a0:dapp/netlify/functions/telegram-authenticate.ts#L187",
            "media_type": "text/plain",
            "sensitivity": "public",
            "retention": "durable"
          }
        ]
      }
    ],
    "hypotheses": [
      {
        "id": "hypothesis.telegram.revalidation",
        "statement": "The display-name update fails because a profile-only mutation is forced through replay validation of stored Telegram login proof.",
        "status": "confirmed",
        "supporting_evidence": [
          "evidence.repo.flow",
          "evidence.repo.emission",
          "evidence.repo.replay",
          "evidence.repo.ttl"
        ],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "open",
            "rationale": "Initially suggested by the Issue's verified-profile state and error text.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Initial hypothesis"
            }
          },
          {
            "status": "confirmed",
            "rationale": "The immutable source trace proves the mandatory replay-validation dependency and exact error branch; documented TTL explains why historical proof is rejected.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.flow,evidence.repo.emission,evidence.repo.replay,evidence.repo.ttl",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Evidence synthesis"
            }
          }
        ]
      },
      {
        "id": "hypothesis.last-name",
        "statement": "Replay validation can also fail because the server omits a signed `last_name` field when reconstructing Telegram authentication data.",
        "status": "confirmed",
        "supporting_evidence": [
          "evidence.repo.last-name"
        ],
        "contradicting_evidence": [],
        "history": [
          {
            "status": "confirmed",
            "rationale": "The capture and replay paths demonstrably use different signed field sets.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.last-name",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Signed-field comparison"
            }
          }
        ]
      },
      {
        "id": "hypothesis.name.immutable",
        "statement": "Display names are intentionally immutable after registration.",
        "status": "rejected",
        "supporting_evidence": [],
        "contradicting_evidence": [
          "evidence.repo.mutable"
        ],
        "history": [
          {
            "status": "open",
            "rationale": "Raised as an alternative in the Issue.",
            "provenance": {
              "phase": "intake",
              "source_type": "issue",
              "source_ref": "Alive24/CKBoost#53",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T00:00:00Z",
              "method": "Alternative capture"
            }
          },
          {
            "status": "rejected",
            "rationale": "The UI and server mutation whitelist explicitly support profile-data edits.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.mutable",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Policy review"
            }
          }
        ]
      },
      {
        "id": "hypothesis.ckb-script",
        "statement": "The reported message is caused by CKB RPC, broadcast, or on-chain script rejection.",
        "status": "rejected",
        "supporting_evidence": [],
        "contradicting_evidence": [
          "evidence.repo.emission"
        ],
        "history": [
          {
            "status": "rejected",
            "rationale": "The exact failure is thrown after a non-OK server-validation response and before broadcast or script execution.",
            "provenance": {
              "phase": "investigation",
              "source_type": "repository",
              "source_ref": "evidence.repo.emission",
              "collector": "failure-report-root",
              "collected_at": "2026-07-30T14:39:43Z",
              "method": "Boundary ordering trace"
            }
          }
        ]
      }
    ],
    "decisions": [],
    "experiments": [
      {
        "id": "experiment.static.call-path",
        "question": "Where is the exact reported error emitted and which boundary precedes it?",
        "proposed_action": "Search the immutable checkout for the exact string and trace callers and server handler without modifying files.",
        "approval": {
          "required": false,
          "status": "not_required"
        },
        "baseline_evidence": [
          "evidence.issue.symptom"
        ],
        "result_evidence": [
          "evidence.repo.flow",
          "evidence.repo.emission",
          "evidence.repo.replay"
        ],
        "outcome": "confirmed",
        "interpretation": "The display-name path deterministically reaches Telegram replay validation; server rejection is translated to the reported generic error before broadcast."
      },
      {
        "id": "experiment.static.signed-fields",
        "question": "Can replay reconstruction differ from the original signed Telegram payload?",
        "proposed_action": "Compare identity-page capture fields with server reconstruction fields.",
        "approval": {
          "required": false,
          "status": "not_required"
        },
        "baseline_evidence": [
          "evidence.repo.replay"
        ],
        "result_evidence": [
          "evidence.repo.last-name"
        ],
        "outcome": "confirmed",
        "interpretation": "`last_name` is captured but omitted during replay reconstruction, creating an independent hash-validation defect."
      },
      {
        "id": "experiment.runtime.user-record",
        "question": "Was the reporter's specific rejection caused by TTL expiry, omitted `last_name`, or both?",
        "proposed_action": "Inspect privacy-safe deployed failure logs or reproduce using a sanitized fixture representing the reporter's stored verification shape.",
        "approval": {
          "required": true,
          "status": "pending",
          "authority": "CKBoost operator with production-log or sanitized-fixture access"
        },
        "baseline_evidence": [
          "evidence.repo.ttl",
          "evidence.repo.last-name"
        ],
        "result_evidence": [],
        "outcome": "not_run",
        "interpretation": "Not needed to establish the architectural root cause or implementation scope; it remains a residual trigger-level uncertainty."
      }
    ],
    "conclusion": {
      "diagnosis": "Display-name edits are intended to be mutable, but `updateProfileDisplayName` sends every profile update through the proxy-auth helper, which requires `/api/telegram-authenticate` to replay and revalidate stored Telegram login data before signing. Historical Telegram login proof expires under the validator TTL and therefore blocks unrelated later profile edits; additionally, the replay code omits the originally signed `last_name` field, which can independently invalidate the Telegram hash. The generic client error is thrown on any non-OK response from this pre-broadcast server boundary, so the failure is not a wallet, RPC, or CKB script rejection.",
      "confidence": {
        "level": "high",
        "basis": "The exact error site, client-to-server call path, server replay logic, documented TTL, signed-field mismatch, mutation whitelist, and pre-broadcast ordering were verified at immutable revision a2f98850862a8bc9ef9bb08c364ef6e8f03461a0. Only the reporter-specific immediate trigger is not runtime-confirmed."
      },
      "remaining_uncertainty": [
        "For the reporter's particular stored record, whether the immediate rejection was TTL expiry, `last_name` omission, or both.",
        "Whether deployed configuration overrides the validator's documented default TTL."
      ],
      "recommended_remediation": [
        "Decouple profile-only mutations from replay of one-time Telegram login proof while preserving authorization and field-whitelist enforcement.",
        "Represent Telegram linkage with a durable verified attestation or normalized verified record rather than reusing raw login query parameters.",
        "If replay remains anywhere, preserve the complete signed Telegram field set, including optional `last_name`, with canonical absent-field handling.",
        "Add privacy-bounded failure telemetry that distinguishes expired proof from malformed replay without logging tokens, hashes, raw transactions, witnesses, or personal identifiers.",
        "Add regression coverage for profile updates after Telegram proof expiry and for Telegram payloads containing `last_name`."
      ]
    },
    "handoff": {
      "todo_status": "not_ready",
      "gate_decision": "Blocked",
      "uat_required": true,
      "goal": "Allow authorized Telegram-linked users to update display names without replaying stale or malformed one-time Telegram login proof.",
      "why_now": "The current proxy-auth design makes an unrelated mutable profile field depend on transient Telegram login data and produces a misleading generic error.",
      "scope_in": [
        "Refactor authorization for profile-only updates so it does not require historical Telegram-login replay.",
        "Preserve server-side allowed-field validation and transaction authorization.",
        "Correct canonical Telegram signed-field handling wherever replay remains.",
        "Normalize verification-data readers and writers if needed by the selected durable-attestation design.",
        "Add privacy-safe diagnostic classification for Telegram validation failures.",
        "Add focused automated and UAT regression coverage."
      ],
      "scope_out": [
        "Changing display names to immutable.",
        "Weakening authorization for non-whitelisted user fields.",
        "Using the diagnostic snapshot as an implementation branch.",
        "Inspecting or changing production user data as part of implementation."
      ],
      "guardrails": [
        "Never log Telegram bot tokens, raw hashes, complete Telegram payloads, wallet identifiers, raw transaction bytes, or witnesses.",
        "Keep non-whitelisted user-cell mutations rejected.",
        "Do not require production secrets for automated tests.",
        "Do not implement directly on the diagnostic snapshot."
      ],
      "required_outcomes": [
        "A previously Telegram-verified user can update display name after the original Telegram login proof has expired.",
        "Users whose original Telegram payload included `last_name` are not rejected due to replay-field loss.",
        "The server preserves authorization and allowed-field enforcement for profile updates.",
        "Failures are classified sufficiently to distinguish expired proof from malformed signed input without exposing sensitive data."
      ],
      "verification": {
        "automated": [
          "Unit-test the profile update authorization path with expired historical Telegram auth data.",
          "Test Telegram validation/reconstruction with and without optional `last_name`.",
          "Test rejection of non-whitelisted field changes.",
          "Test privacy-safe failure classification without secret or personal fields."
        ],
        "uat": [
          "With a Telegram-linked test account whose original auth is older than the validator TTL, change display name and confirm the update transaction completes.",
          "Repeat with a test Telegram payload containing `last_name`.",
          "Attempt a non-whitelisted field mutation and confirm rejection."
        ],
        "context": [
          "Run against the target implementation revision with fixtures only; no production-user mutation is required."
        ]
      },
      "residual_risks": [
        "The reporter-specific immediate trigger was not observed in live logs, though both trigger classes are covered by the required outcomes.",
        "Deployed TTL overrides may affect reproduction timing but not the identified coupling defect."
      ]
    },
    "domain": {
      "pack_id": "ckb",
      "pack_version": "1",
      "schema_ref": "failure-report/domain/ckb/v1",
      "extension_data": {
        "first_failure_layer": "transaction_assembly",
        "first_failure_boundary": "Netlify /api/telegram-authenticate pre-signing validation",
        "ckb_script_involvement": "rejected_for_reported_symptom",
        "runtime_trigger_uncertainty": "TTL expiry versus omitted signed last_name field",
        "diagnostic_only": true
      }
    }
  }
}