# Goal 2 Base Signature Result

Status: **COMPLETE**. Goal 3 was not started.

## Finding and remediation

Goal 2 exercised the genuine memory-driven conditional approval path after the
Goal 1 approval-recovery remediation. The approval coordinator remains the
server-authoritative boundary: it derives the artifact and digest from the
current Sibyl-backed reconciliation, verifies Base Sepolia evidence before
journaling, keeps transaction-hash retries idempotent, and refuses a second
active journal approval for the same current digest. Historical approvals remain
supersedable by later evidence.

## Genuine case prepared

- Case: `goal2-signature-20260905b`
- Historical observation: A=11 after verified boundary 2
- Countback recommendation: B
- Direct operator measurement: B=9 under `goal2-freeze-20260905`
- Result: `RESOLVED_CONDITIONAL`
- Proposal: A=11, B=9, C=10; B direct, A/C inferred
- Evidence digest: `0x066d963b139e5ee8142e9bb3aed30bb8debfaeb681ae369d126a47dfb66f9ba7`
- Fixed schema: `0x91b0713a50418a2bf80050a254ae5a1d7f8030d1210bf123574b5cb3e2f16e0b`

The exact EAS schema was confirmed registered on Base Sepolia. A human approved
the gas-only wallet transaction through the browser wallet; no private key,
seed phrase, or automatic signing was used.

## Onchain and journal result

- Chain: Base Sepolia (`84532`)
- Transaction: `0x70e34a9cd79366b1e573d9fd01860455f130c9d5aeafc65c2c6421f8882a37bd`
- Receipt status: `0x1`
- Block: `46453041`
- EAS contract: `0x4200000000000000000000000000000000000021`
- Value: `0x0`
- Attester: `0xa7e953e76fb5662b0f195d926272adccc6504293`
- Attestation UID: `0x571fe8be9f05f3857abdc9f1075a018e9b41ec261ac927b64a408668202ab502`
- Journal event: sequence `7`, UUID `411d8965-5ffd-44b3-a8bc-5ff5d4f8f171`,
  `reconciliation_approval`, status `ACTIVE`
- Countback UI result: `VERIFIED ON BASE SEPOLIA`

Evidence files: [journal snapshot](goal2-conditional-journal-snapshot.json),
[artifact](goal2-conditional-artifact.json),
[receipt](goal2-conditional-receipt.json), and
[tamper-verifier results](goal2-conditional-verifier.txt).

## Regression results

- Targeted conditional/approval tests: 2 passed.
- Targeted browser uncertainty/revert recovery tests: 4 passed.
- Full suite: **91 passed, 2 existing deprecation warnings**.
- New coverage includes conditional artifact/basis derivation, duplicate valid
  attestations remaining canonical, transaction-hash replay idempotency, and
  stale evidence rejection during verification. Existing tests cover temporary
  network/backend/RPC uncertainty, reverted receipts, discard/recovery, local
  verifier MATCH/tamper mismatch, and later evidence supersession.
- Local verifier: original artifact `MATCH`; modified artifact `DIGEST MISMATCH`.

## Commits and working state

- `5850432 test: cover conditional Base approval proof`
- `a93a269 docs: record Goal 2 Base signature handoff` (interim handoff record)
- Parent HEAD: `024e7e7 docs: record approval remediation`
- Final evidence/report commit: `605873a docs: record Goal 2 Base attestation evidence`
- Final final-sprint HEAD: the final report-handoff commit; its exact hash is recorded in the handoff response.
- Pre-existing unrelated working-tree changes remain untouched:
  `reports/screenshots/{intake,mobile,reconciliation}.png` and
  `reports/judge-gauntlet-20260905/`.

No solver, reconstruction, Sibyl memory, Base schema/protocol, MCP, benchmark,
landing page, or Goal 3 files were changed. Stop here; do not begin Goal 3.