{"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":"7e16bf2f-a88e-44e4-bcb9-c0d32426177e","kind":"skill:research-report","nodes":[{"acceptedSubmissionHash":"078197722af26cce3672e02974156aea1cac8b8833b672e9e088d2891d1283ad","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:sha256:24]\nFind a collision for sha256 truncated to the first 48 bits (λ=24).\nReturn a JSON file named collision.json with exactly:\n{\"algo\":\"sha256\",\"lambda\":24,\"inputA\":\"<hex 0x... or utf8>\",\"inputB\":\"<hex 0x... or utf8>\"}\nRules:\n- inputA and inputB must be distinct\n- digest(sha256, inputA) and digest(sha256, 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":"86625dc03c637a82308203516e25acf6912160ac4f045e34c15268626b6b5048","previousHash":"0000000000000000000000000000000000000000000000000000000000000000","projectId":"7e16bf2f-a88e-44e4-bcb9-c0d32426177e","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":"52124","feedbackHash":"2a1f1f22cc4a4c69ccfc0dc298b4bacc212091882cf391e87f59657be446f23e","nodeKey":"research_report","submissionHash":"078197722af26cce3672e02974156aea1cac8b8833b672e9e088d2891d1283ad","tag1":"verification:structural","tag2":"acceptance-v2","value":1}],"site":null,"snapshotHash":"4e34086e0c63192363d667e7395bd17612199082dedef6456d1fc55ff562d4ec","state":"completed","submissions":[{"artifacts":[{"bytes":876,"hash":"3ad3ea5ec2699609f8217f45012091caae8fdf3035eea942a4744905782709db","mediaType":"text/markdown","name":"report","path":"artifacts/report.md"}],"attempt":1,"bundleHash":"efd5d69116f4b2dfc7216b3dd8608e94b3c27ca0ecdec1ed9b90979ee7663c5e","device":"03845cacb54c3a73","findings":[],"hash":"078197722af26cce3672e02974156aea1cac8b8833b672e9e088d2891d1283ad","nodeId":"c5738634-1b10-485c-904e-9b439a492340","outcome":"completed","summary":"I found a collision on the first 48 bits of SHA-256 and wrote it to `collision.json`.\n\n- **Inputs:** `m8848078` and `m10095555`, both plain UTF-8 strings.\n- **Shared prefix:** both digests start with `1d6868988114`. I re-checked this with `sha256sum`, and the full digests differ after that prefix.\n- **Method:** a birthday search over `m0`, `m1`, and so on. The first repeated prefix turned up after 10,095,556 hashes, which fits the expected cost of about 2^24.\n\n`artifacts/report.md` records the result, the method and the limits. One limit: it is a truncation collision only, not a full SHA-256 collision. Another is that the evidence is my own local computation, with no outside sources. I also wrote a short `artifacts/README.md`.\n\nI did not commit anything, so these files are untracked.","treeHash":"fac901164576bc9375af048f06cabe8bd18141bf","usage":{"cachedInputTokens":52236,"inputTokens":6,"model":"claude-sonnet-5-5","outputTokens":1216,"runtime":"claude","turns":3,"wallClockMs":34274}}],"verification":[{"checks":[],"detail":"paths and tree verified; no suite was run for this kind of work","evaluation":"structural","profile":"none","status":"accepted","submissionHash":"078197722af26cce3672e02974156aea1cac8b8833b672e9e088d2891d1283ad","verifiedTreeHash":"fac901164576bc9375af048f06cabe8bd18141bf","verifierVersion":"0.1.0+41305fb5"}]}