{"entry":{"fixtureId":"attack-xchain-signature-replay-v0","appSlug":"attack-xchain-signature-replay","appName":"ATTACK: signature-replay","reportId":"lab_attack-xchain-signature-replay-v0_20260610225855224","generatedAt":"2026-06-10T22:58:55.224Z","status":"pass","jsonPath":"/bundle/server-functions/default/.nocklab/attack-xchain-signature-replay.report.json","markdownPath":"/bundle/server-functions/default/.nocklab/attack-xchain-signature-replay.report.md","reportHash":"sha256:ab288d7f4e50abd6ada920d58ed5c9e197ce23e6e7c7f53422596db5bd889478","snapshotRoot":"d0632922f73154ae","badgeCandidate":{"id":"badge-candidate-attack-xchain-signature-replay","label":"ATTACK: signature-replay Verification Candidate","reportSlug":"attack-xchain-signature-replay","fixtureId":"attack-xchain-signature-replay-v0","status":"watch","evidenceKind":"exploit-prevention","statusReDerived":"pass","statusConsistent":true,"kernelHash":null,"kernelVerified":false,"baseDeploymentHash":null,"baseVerified":false,"signatureStatus":"unsigned","evidence":{"reportHash":"sha256:ab288d7f4e50abd6ada920d58ed5c9e197ce23e6e7c7f53422596db5bd889478","snapshotRoot":"d0632922f73154ae","invariantPacks":[]}},"stepsPassed":1,"stepsTotal":1,"invariantsPassed":0,"invariantsTotal":1,"alertsTriggered":0,"snapshotsCaptured":2,"adapterObservationCount":0,"invariantPackCount":0},"report":{"reportId":"lab_attack-xchain-signature-replay-v0_20260610225855224","fixtureId":"attack-xchain-signature-replay-v0","generatedAt":"2026-06-10T22:58:55.224Z","app":{"name":"ATTACK: signature-replay","slug":"attack-xchain-signature-replay","version":"0.0.1","kernel":"xchain-attack-model"},"environment":{"mode":"mock-fakenet","grpcEndpoint":"n/a","fakenetCommand":"model","notes":["NEGATIVE CONTROL (expectRejected=true): a multi-EVM cross-chain exploit the invariant MUST catch.","One 3-of-5 attestation signed for Arbitrum (42161) replayed to mint on Optimism (10).","expectRejected inverts a CAUGHT exploit to a green proof-of-prevention."]},"summary":{"status":"pass","stepsPassed":1,"stepsFailed":0,"invariantsPassed":0,"invariantsFailed":1,"alertsClear":0,"alertsTriggered":0,"snapshotsCaptured":2,"durationMs":17,"expectRejected":true,"rawStatus":"fail"},"invariantPacks":[],"steps":[{"id":"observe","type":"bridge","title":"Observe terminal joint multi-EVM state","status":"pass","expectation":"xchain.observed == true","observed":"true","beforeHash":"c19031dc5b43dedf","afterHash":"d0632922f73154ae","stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"durationMs":19}],"invariants":[{"id":"chainid-bound","title":"Signed payload must bind the target chain","severity":"critical","status":"fail","observed":"CHAIN-ID REPLAY: wd-001: signed for chain 42161 but applied to 10","expected":"every cross-chain message's signed payload binds its targetChainId (raw txs use EIP-155), under xchain.crosschain"}],"alerts":[],"adapterObservations":[],"stateSnapshots":[{"label":"Initial state","stateHash":"c19031dc5b43dedf","state":{"xchain":{"crosschain":{"messages":[{"id":"wd-001","targetChainId":10,"attestation":{"signedPayloadIncludesChainId":true,"signedChainId":42161,"eip155":true},"attestedBy":["n1","n2","n3"]}]}}}},{"label":"After observe","stateHash":"d0632922f73154ae","state":{"xchain":{"crosschain":{"messages":[{"id":"wd-001","targetChainId":10,"attestation":{"signedPayloadIncludesChainId":true,"signedChainId":42161,"eip155":true},"attestedBy":["n1","n2","n3"]}]},"observed":true}},"stepId":"observe"}],"stateDiffs":[{"path":"xchain.observed","before":"undefined","after":"true"}],"nextActions":["Replace mock poke and peek execution with local fakenet adapter calls.","Replace command-backed fakenet metadata probes with stable gRPC-native probes once node surfaces are available.","Persist generated reports under a project workspace.","Add app-specific invariant packs as the NockApp interface stabilizes."]},"markdown":"# ✅ ATTACK: signature-replay Lab Report\n\n> **PASS** — 1/1 steps · 0/1 invariants · 0 alerts · 17ms\n\n| Field | Value |\n| --- | --- |\n| Report | `lab_attack-xchain-signature-replay-v0_20260610225855224` |\n| Fixture | `attack-xchain-signature-replay-v0` |\n| Status | ✅ pass |\n| Steps | 1 passed, 0 failed |\n| Invariants | 0 passed, 1 failed |\n| Alerts | 0 clear, 0 triggered |\n| Snapshots | 2 |\n\n## Steps\n\n- ✅ `observe` — true _(xchain.observed == true)_; c19031dc5b43dedf -> d0632922f73154ae\n  - xchain.observed: undefined -> true\n\n## Invariants\n\n- ❌ `chainid-bound` — CHAIN-ID REPLAY: wd-001: signed for chain 42161 but applied to 10 _(expected every cross-chain message's signed payload binds its targetChainId (raw txs use EIP-155), under xchain.crosschain)_\n\n## Alerts\n\n- No alert policies configured.\n\n## Adapter Observations\n\n- No adapter observations captured.\n\n## State Diffs\n\n- xchain.observed: undefined -> true\n\n## Snapshot Timeline\n\n- Initial state: c19031dc5b43dedf\n- After observe: d0632922f73154ae\n\n","evidence":{"stateDiffCount":1,"snapshotCount":2,"alertCount":0,"triggeredAlertCount":0,"clearAlertCount":0,"triggeredCriticalAlertCount":0,"triggeredWarningAlertCount":0,"triggeredInfoAlertCount":0,"environmentMode":"mock-fakenet","grpcEndpoint":"n/a","environmentNoteCount":3,"nextActionCount":4,"firstNextAction":"Replace mock poke and peek execution with local fakenet adapter calls.","invariantPackCount":0,"invariantPackIds":[],"invariantPackDomains":[],"firstInvariantPackPath":"","changedPaths":["xchain.observed"],"markdownPreview":"# ✅ ATTACK: signature-replay Lab Report"}}