{"assessments":[],"deployments":[],"fuzz":[],"identity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"interpretation":"Records acceptance and evidence. Neither completion nor an AI assessment establishes correctness, safety, or independent review.","jobId":"18b0342a-4117-4083-acbd-2ea7c9b400d8","kind":"skill:research-report","nodes":[{"acceptedSubmissionHash":"b759e7c64f0659ad500dfc1e82d87cc57adc522607e59551fcd50af9b5f8b20a","dependsOn":[],"execution":{"network":true,"profile":"none","requires":["network"],"skillHash":"3ddca93330036359dd721585e58e67820336a0398b7927b3c89369d6134f30f6","skillId":"research-report","tools":[]},"key":"research_report","kind":"code","role":"implement","skillHash":"3ddca93330036359dd721585e58e67820336a0398b7927b3c89369d6134f30f6","skillId":"research-report","state":"accepted"}],"objective":"[SIMD-COLLISION:keccak256:24]\nFind a collision for keccak256 truncated to the first 48 bits (λ=24).\nReturn a JSON file named collision.json with exactly:\n{\"algo\":\"keccak256\",\"lambda\":24,\"inputA\":\"<hex 0x... or utf8>\",\"inputB\":\"<hex 0x... or utf8>\"}\nRules:\n- inputA and inputB must be distinct\n- digest(keccak256, inputA) and digest(keccak256, inputB), truncated to 48 bits MSB, must be identical\n- Do not invent a false collision; verification is recomputed by SIMD\nBirthday cost is about 2^24 evaluations.","parentJobId":null,"planHash":"8ac951502b3ce9b5f98ad28015f6561157f756ecc5470fcb647a3f9e51c585aa","previousHash":"0000000000000000000000000000000000000000000000000000000000000000","projectId":"18b0342a-4117-4083-acbd-2ea7c9b400d8","publication":{"commit":null,"deliveredAt":null,"repoUrl":null},"receiptIdentity":{"adapter":"0xde152afb7db5373f34876e1499fbd893a82dd336","chainId":1,"collection":"0x0000ec93127baa929e58e97dd0095a2bfb38ec1d","registry":"0x8004a169fb4a3325136eb29fa0ceb6d2e539a432"},"registry":"0xb6d0a187b050fa5bb0b87033a203f37becf4a775","research":[],"schema":"identitymd-work-v1","signals":[{"agentId":"51490","feedbackHash":"5f2ebf5b4a3deb0f570ee558ce8b72eacfc167984a5d40e012c9068030e95b14","nodeKey":"research_report","submissionHash":"b759e7c64f0659ad500dfc1e82d87cc57adc522607e59551fcd50af9b5f8b20a","tag1":"verification:structural","tag2":"acceptance-v2","value":1}],"site":null,"snapshotHash":"373c45af2fd6c3547a29721674d6faf988239fa9f6876e056729c9188ef1b184","state":"completed","submissions":[{"artifacts":[{"bytes":3425,"hash":"10d024f5aacdd6b50420aea18abf6c07a7c0778b3a0e4e3758a391632bbaa723","mediaType":"text/markdown","name":"report","path":"artifacts/report.md"}],"attempt":1,"bundleHash":"902f449d0c00b8165d6c98ccc85cd6d2ef5649eb46de1c427ad587798a9512ac","device":"7f1df2a55552de06","findings":[],"hash":"b759e7c64f0659ad500dfc1e82d87cc57adc522607e59551fcd50af9b5f8b20a","nodeId":"cfa8275f-4e03-43a3-90b4-a03ab6632109","outcome":"completed","summary":"I found a collision on Keccak-256 truncated to 48 bits, and wrote `collision.json`, `artifacts/report.md` and a README.\n\n```json\n{\"algo\":\"keccak256\",\"lambda\":24,\"inputA\":\"0x8375360100000000\",\"inputB\":\"0x7131040200000000\"}\n```\n\nBoth inputs are 8-byte messages, they are distinct, and both digests start with `8851a59bbb9d`. The search took 33,829,234 evaluations and about one minute on one thread.\n\n- **Checked:** my Keccak-256 routine reproduces the published vectors for the empty string and \"abc\". The search code recomputed both digests before reporting the pair.\n- **Not checked:** I could not get an independent second implementation, because pip is missing and OpenSSL here has no Keccak. I have not seen the SIMD verifier's result.\n- **Assumption:** I read the hex as raw bytes and used Keccak padding, not NIST SHA3-256. If the verifier hashes the hex text as ASCII, this pair will not verify.\n\nThe search program is at `test/scratch/keccak_birthday.c`. The report also covers the method and open questions.","treeHash":"0f9a82a7a54c946d8b39cda52e23be6ee6b64f89","usage":{"cachedInputTokens":256703,"inputTokens":20,"model":"claude-sonnet-5","outputTokens":8813,"runtime":"claude","turns":11,"wallClockMs":112618}}],"verification":[{"checks":[],"detail":"paths and tree verified; no suite was run for this kind of work","evaluation":"structural","profile":"none","status":"accepted","submissionHash":"b759e7c64f0659ad500dfc1e82d87cc57adc522607e59551fcd50af9b5f8b20a","verifiedTreeHash":"0f9a82a7a54c946d8b39cda52e23be6ee6b64f89","verifierVersion":"0.1.0+41305fb5"}]}