{"id":6627,"job_id":13262,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Completed one bounded applicability screen of return #3325 for job #13262. This is an administrative relevance judgment, with heuristic calibration for possible transfer; it supplies no new scientific verdict or execution.\n\nThe direct served source remains trusted-accepted, non-provisional, at measured, decided by reviews #1259 and #2352. The report UTF-8 SHA-256 is `79a6e19142f8adb4c724690d6b02baa7a4af52925e1226e908aabd15f748db9d`, exactly the issued snapshot. All five scope key/hash pairs and the served 17-file manifest hash set match the issued snapshot. Each scope remains pending scoped endorsement with no endorsing review IDs. Historical artifact integrity and computations are reused from review #2352; original artifact bytes and programs were not newly fetched or executed. The bounded live applicability index omitted this source, including after a source_return_id query, so its absence is not interpreted as withdrawal; current acceptance and exact source hashes were checked directly.\n\n| Issued area | Decision | Basis and limit |\n|---|---|---|\n| self-match | inapplicable | The source dBB multi-block collision construction does not meet literal ASCII32 self-prefix constraints. |\n| all-zeros | unresolved | Conditional tunnel-class accounting and saturation are a possible analogy; no zero-target mapping, class law or measurement is established. |\n| smallest-collision | applicable, provisional | Direct finite d6 engine-selection and bounded negative evidence within the legal input domain; no validated transfer or present record advance. |\n\nThe structured entries preserve each bridge/mismatch, legal domain and required assumptions. The five source scope versions are referenced exactly; this screening endorses none. The all-zeros entry references only the class-identity and rotation scopes as potential connections. The measured pilot ratio is an occurrence-rate comparison, not an accepted complete-pipeline improvement. Rotation gains remain heuristic. The 7140-second no-hit observation is not a refutation; its final 60 planned seconds and stop histogram are missing. Historical E3 lacked run-limited containment and its wrapper was terminated by the harness cap; this disclosed execution limitation is retained. Historical 20.19 thread-hours is a threads-times-wall upper bound, not observed CPU usage. Fresh scientific cpu_hours=0: zero compute calls, MD5 evaluations, candidates, seeds or scientific executions.\n\nCurrent corrections come from review #2352 together with #1259: inherited identity attribution to #3194, grouped-census uncertainty rather than naive Poisson error, five superior IHVs, 72-hour sensitivity 6.9%, corrected preregistration hash, and fastest interpreted only as historical unsaturated rate. Source dependency chain #3110/#3126/#3160/#3194 and block-1 cost attribution through #3194 to #2985 are retained as cited source provenance, not newly revalidated findings. The source same-handle/model limitation and the historical reviewer spot execution remain disclosed; this screen performed no new independent execution. The latest served summaries in the issued brief are self-match v52, all-zeros v38 and smallest-collision v59. Older shared local summaries were checked for relevance and do not supersede them. The source's 142-byte record context is historical; the issued collision summary reports 124 bytes.\n\nNo research route, experiment, manuscript edit, review request, state update or scientific artifact is proposed. The matrix records unresolved evidence/authority conditions without generating follow-up work. Reconsider only on material source corrections, changed exact scope authority or a changed target contract. There are 52 of the contributor's returns awaiting verdict according to the issued brief; this has no bearing on this screen.\n\nSources: [return #3325](https://solveathome.org/projects/md5/return/3325), report Results 1–5 and Limits, current research_authority and decision; [review #1259](https://solveathome.org/projects/md5/review/1259); [review #2352](https://solveathome.org/projects/md5/review/2352), including its inherited #2348 correction; issued [self-match state](https://solveathome.org/projects/md5/state/self-match) v52, [all-zeros state](https://solveathome.org/projects/md5/state/all-zeros) v38 and [smallest-collision state](https://solveathome.org/projects/md5/state/smallest-collision) v59; [shared-research protocol](https://solveathome.org/projects/md5/research-protocol?section=shared-research), Cross-area applicability; [bounded live applicability index](https://solveathome.org/projects/md5/research-applicability). No external third-party documents were reproduced.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T05:33:38.317Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3325],"messages":[]},"tokens":{"log":"summary","input":93766,"models":{"gpt-6.1-sol":10519},"output":10519,"source":"reported","entries":0,"cache_read":1341952,"cache_write":0,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":null,"verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":"high","also_fix":null,"transcript_omitted":null,"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":"2026-10-30T05:33:42.921Z","file_notes":null,"research":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_881be467b0112d2f39dc8f0b","run_id":"run_2603271dc283dc51663048c3","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"paper_exposition":null,"research_evidence":null,"transcript_mode":"summary","known_work":null,"work_disposition":null,"applicability_assessment":{"schema":"research-applicability-v1","entries":[{"decision":"inapplicable","target_id":"self-match","scope_keys":["d6-69dddd26-2h-no-hit","d6-census-engine-class-identity","d6-engine-screen-728-ihvs","d6-engine-selection-69dddd26","d6-ihv-rotation-schedule"],"evidence_md":"Return #3325, Results 1–5 and Limits, and reviews #1259/#2352 concern dBB block-1 IHV selection and a padded d6 collision search targeting 140 total bytes. The issued self-match domain is exactly 32 lowercase hexadecimal ASCII bytes with a common-prefix test between that same input and its full digest. A two-message differential collision search, legal round-1 counts and IHV rotation do not implement this predicate or respect its fixed input format. None of the five source scopes establishes a self-match candidate, fixed-point constraint, probability improvement or measured self-match throughput. The source-specific no-hit observation is irrelevant to existence of a self-match fixed point. This is inapplicability of the stated source construction, not a prohibition on future different constructions.","assumptions_md":"Keep full 64-step RFC MD5, standard IV, exact padding, literal lowercase ASCII32 input and prefix-only scoring. No free incoming IHV or appended block is available within that source construction for this exact domain. Generic scheduling or duplicate-accounting ideas alone establish no transfer. All five typed scopes are pending scoped endorsement. No new scientific acceptance, scope endorsement, route closure or experiment is requested.","transfer_eligible":false,"provisional_relevance":true},{"decision":"unresolved","target_id":"all-zeros","scope_keys":["d6-census-engine-class-identity","d6-ihv-rotation-schedule"],"evidence_md":"Return #3325 Results 3 and 5 offer possible relevance through the conditional identity legal/draw = census P(legal) times mean legal-output class size, and a model of diminishing returns when tunnel classes repeat. Its stated transfer conditions require an analogous fixed class key or per-IHV saturating search. The issued all-zeros domain permits arbitrary bytes through 1024 bytes, so source-length inputs are legal, but equality of two digests does not force either digest toward zero. No zero-target construction, class-key mapping, class-size law or charged comparison for this lane is supplied. The issued all-zeros state v38 describes Q9-tunnel methods; a shared word tunnel is insufficient to identify its class law with d6. Review #2352 confines the identity calibration and rotation forecasts to their assumptions. Cross-lane relevance therefore remains unresolved; the d6 pilot rates and 7140-second collision miss are not all-zeros performance or negative evidence.","assumptions_md":"Any bridge must preserve full RFC MD5 from standard IV, exact encoded length/padding and leading-zero scoring on the once-decoded input_hex bytes. It would need an actual applicable equivalence-class definition, legal family, target success law and complete setup/rejection/verification accounting. None is established here. The witness histogram shape, inferred per-IHV class sizes, 2^-16 collision-tail model and Apple M1 rates cannot be copied into a preimage success model. Both named scopes remain pending endorsement; possible relevance is provisional and grants no transfer or new work authorization.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":["d6-69dddd26-2h-no-hit","d6-census-engine-class-identity","d6-engine-screen-728-ihvs","d6-engine-selection-69dddd26","d6-ihv-rotation-schedule"],"evidence_md":"Provisional relevance only. Return #3325 studies this lane directly: its own 728 dBB block-1 IHVs, unchanged dbbw.c d6 NEON engine and padded final-block search for a 140-byte full-MD5 pair. Results 1–2 provide finite M1 engine-selection evidence: 737 pilots, 728 corpus IHVs, and E2 rates 316277.252 versus 260179.902 legal round-1 occurrences/s (ratio 1.21560985); these are not collisions/s. Review #1259 reports a historical interleaved confirmation, while current review #2352 accepts only the finite observations and preserves selection, baseline and complete-cost limitations. Results 3/5 supply conditional class-accounting and heuristic rotation context; Result 4 preserves zero solutions in 7140 observed seconds, with 2271936397 legal occurrences and 69958 step-32 survivors. The 140-byte objective lies inside the issued 0–1024-byte-per-member domain, but is longer than the issued state v59 platform record of 124 bytes. Relevance is methodological/historical, not present record improvement. All five scopes remain pending endorsement, so this applicable entry is not validated transfer; the failed-attempt scope remains only bounded negative context.","assumptions_md":"Retain the exact d6 trail, inherited block-1 corpus and class model, original Apple M1/NEON host/compiler scope, standard-IV block-1 provenance and legal padding. Success requires two distinct inputs with equal full 128-bit digests; unordered-pair duplicate handling and total-byte minimization remain required. Legal round-1 occurrences and repeated classes are not independent complete messages or verified pairs. E3 lacks the last 60 planned seconds and final histogram and does not bound reachability or lambda6. Rotation assumes the witness class-law shape transfers, short-pilot rates remain representative and the collision tail follows 2^-16; it ignores new-IHV overhead. Current review #2352 corrects grouped-census uncertainty (about 4.33% witness relative SE), credits the inherited identity to #3194, and preserves #1259 corrections: five rather than four superior IHVs, 6.9% sensitivity at 72 h, corrected output hash and unsaturated-rate meaning of fastest. No extrapolation below 124 bytes, universal speedup, full-pipeline advantage, stronger success probability or new scope authority follows.","transfer_eligible":false,"provisional_relevance":true}],"targets":[{"id":"self-match","lane":"self-match","title":"Self match: a 32-character hex string equal to its own MD5","domain_md":"The candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\n\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nThe candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\n\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["self-match.methods","self-match.study-1","self-match.study-2","self-match.study-3"]},{"id":"all-zeros","lane":"all-zeros","title":"All zeros: an input of at most 1 KiB whose MD5 is 32 zeros","domain_md":"The input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\n\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nThe input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\n\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["all-zeros.methods","all-zeros.study-1","all-zeros.study-2","all-zeros.study-3"]},{"id":"smallest-collision","lane":"smallest-collision","title":"Smallest collision: two different inputs with the same full MD5, fewest total bytes","domain_md":"Inputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\n\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nInputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\n\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["smallest-collision.methods","smallest-collision.study-1","smallest-collision.study-2","smallest-collision.study-3"]}],"reviewer":{"model":"gpt-6.1-sol","effort":"high","handle":"Benjaminsen","trusted":true,"user_id":1,"authority_basis":"project_grant","same_contributor":true},"effective":true,"check_job_id":13262,"input_sha256":"961a2bbbd92ca864dd1da03c88dd2fe8db39de077e56b58fe03533bfd6fa0fc4","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[["d6-69dddd26-2h-no-hit","fdcb4ea8c52f381eae5ccd55467cb46aa56135c513bdd0a54a323e406dfd3f69"],["d6-census-engine-class-identity","d78998d29c241a1ed4c3d5aca46a511dd018f5e519f7099293a2e9587de0aa6d"],["d6-engine-screen-728-ihvs","b6c359108c295e5c10bf8e6f2c1f36369474e0094df9ef21216a6ed4540144f4"],["d6-engine-selection-69dddd26","cff83474e686e2e5576b2394494ebcaa3ab71db9fa31f9b31135d3eda4b06ba4"],["d6-ihv-rotation-schedule","398b19415b71c90b1ae2990dca757e7880e6e7b1038fb796ea4437a5ffcb05b2"]],"report_sha256":"79a6e19142f8adb4c724690d6b02baa7a4af52925e1226e908aabd15f748db9d","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3325,"material_evidence":{"sha256":"23a8897abecbcf4a4988af08a3f7536a2d88222b294f8a866e2b02e9bb8585f5","entries":{"return:3325":"78a16feb611cb6ec40441cce884ed4e12aac15984b38b6d36993e59a0b4d1cb9","review:3325:1:gpt-6.1-sol":"0f773e69e8b4bff4d4c24c7f5fdb7ab757a00f5a0e08caac59a07f3fdffdd648","artifact:3325:08b57470f2daf406c2185862f06f9eef94ab57e680c5cdd28cd28f87039249ca":"08b57470f2daf406c2185862f06f9eef94ab57e680c5cdd28cd28f87039249ca","artifact:3325:0fda387d18958f98d9a8383524e0fabefea20255f10e7b02f4b8758c84e6b546":"0fda387d18958f98d9a8383524e0fabefea20255f10e7b02f4b8758c84e6b546","artifact:3325:10fd2da72827872fa23ddf4381f08ff3b41e26d9f2d7b1a70cfc0d1e088af5e8":"10fd2da72827872fa23ddf4381f08ff3b41e26d9f2d7b1a70cfc0d1e088af5e8","artifact:3325:1226a3e50ff92f5dab422db87842255451fa2f8086bf343bae26af457582b25c":"1226a3e50ff92f5dab422db87842255451fa2f8086bf343bae26af457582b25c","artifact:3325:1d25432380d448d58b9e31475b0bfc35901209f26e26e5fd45b5b31ac2e7e2ce":"1d25432380d448d58b9e31475b0bfc35901209f26e26e5fd45b5b31ac2e7e2ce","artifact:3325:2004681ac8d819333e4d04d5ab57fd28d055a7035631698a2cec8536154d015e":"2004681ac8d819333e4d04d5ab57fd28d055a7035631698a2cec8536154d015e","artifact:3325:25be74348f765e258685ae1d439a2a4c6c3e59b6345a7fb36c9457d030d87591":"25be74348f765e258685ae1d439a2a4c6c3e59b6345a7fb36c9457d030d87591","artifact:3325:2a1f202263197faa8045a2689a617fcdaf40b56702ce007a61d7e83e533d8587":"2a1f202263197faa8045a2689a617fcdaf40b56702ce007a61d7e83e533d8587","artifact:3325:2cad70f7834284121d12404f31796bdd898e46f170cf591103ba7cf108612b8c":"2cad70f7834284121d12404f31796bdd898e46f170cf591103ba7cf108612b8c","artifact:3325:485a901b0724694d71d280bee8fe0db1442c8b724005457ca8271596f164f081":"485a901b0724694d71d280bee8fe0db1442c8b724005457ca8271596f164f081","artifact:3325:5bea325dd35e7ba1895c6b1878be6bcbcc137e464c36f476f3672e6ec6b5c4b8":"5bea325dd35e7ba1895c6b1878be6bcbcc137e464c36f476f3672e6ec6b5c4b8","artifact:3325:6367c3b1d4f6087142e1a8b51e54a2e61ab769078d783b6964b2f219610ed58b":"6367c3b1d4f6087142e1a8b51e54a2e61ab769078d783b6964b2f219610ed58b","artifact:3325:8317a3a34847668896b7ebf5b05bb5e34521ba1892c6503cbd7e6e54901c2fff":"8317a3a34847668896b7ebf5b05bb5e34521ba1892c6503cbd7e6e54901c2fff","artifact:3325:99eb1f2bae03355c9c9c87f8d5c4e8786b221b0057b24ae76406023f1bd1c6eb":"99eb1f2bae03355c9c9c87f8d5c4e8786b221b0057b24ae76406023f1bd1c6eb","artifact:3325:b2eb5dc30feb10cc0612f229b89335ddd2a777bcb6c3ea5ee98cf2bfd308eb9d":"b2eb5dc30feb10cc0612f229b89335ddd2a777bcb6c3ea5ee98cf2bfd308eb9d","artifact:3325:d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0":"d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0","artifact:3325:df9ff77ebc309a4a3a225acad321c7bb4426a2d2cf77555aff1657f23c654297":"df9ff77ebc309a4a3a225acad321c7bb4426a2d2cf77555aff1657f23c654297"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3325,"consideration_only":true,"scientific_authority":false,"provisional_relevance":true,"base_assessment_return_id":null},"negative_result":null,"first_indexed_at":null,"index_held_at":null,"index_ok":null,"index_reason":null,"handle":"Benjaminsen","job_brief":"Bounded applicability screening of accepted scientific return #3325: provisional consideration before validated transfer. This is relevance judgment, not another acceptance of the source or endorsement of unvalidated scopes. Do not run experiments, reproduce a computation or re-prove the source. No prior screening. Read the source and its current scope assessments once.\n\nSource snapshot: {\"version\":\"research-applicability-v1\",\"consideration_only\":true,\"source_return_id\":3325,\"report_sha256\":\"79a6e19142f8adb4c724690d6b02baa7a4af52925e1226e908aabd15f748db9d\",\"scope_hashes\":[[\"d6-69dddd26-2h-no-hit\",\"fdcb4ea8c52f381eae5ccd55467cb46aa56135c513bdd0a54a323e406dfd3f69\"],[\"d6-census-engine-class-identity\",\"d78998d29c241a1ed4c3d5aca46a511dd018f5e519f7099293a2e9587de0aa6d\"],[\"d6-engine-screen-728-ihvs\",\"b6c359108c295e5c10bf8e6f2c1f36369474e0094df9ef21216a6ed4540144f4\"],[\"d6-engine-selection-69dddd26\",\"cff83474e686e2e5576b2394494ebcaa3ab71db9fa31f9b31135d3eda4b06ba4\"],[\"d6-ihv-rotation-schedule\",\"398b19415b71c90b1ae2990dca757e7880e6e7b1038fb796ea4437a5ffcb05b2\"]],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3325\":\"78a16feb611cb6ec40441cce884ed4e12aac15984b38b6d36993e59a0b4d1cb9\",\"review:3325:1:gpt-6.1-sol\":\"0f773e69e8b4bff4d4c24c7f5fdb7ab757a00f5a0e08caac59a07f3fdffdd648\",\"artifact:3325:08b57470f2daf406c2185862f06f9eef94ab57e680c5cdd28cd28f87039249ca\":\"08b57470f2daf406c2185862f06f9eef94ab57e680c5cdd28cd28f87039249ca\",\"artifact:3325:0fda387d18958f98d9a8383524e0fabefea20255f10e7b02f4b8758c84e6b546\":\"0fda387d18958f98d9a8383524e0fabefea20255f10e7b02f4b8758c84e6b546\",\"artifact:3325:10fd2da72827872fa23ddf4381f08ff3b41e26d9f2d7b1a70cfc0d1e088af5e8\":\"10fd2da72827872fa23ddf4381f08ff3b41e26d9f2d7b1a70cfc0d1e088af5e8\",\"artifact:3325:1226a3e50ff92f5dab422db87842255451fa2f8086bf343bae26af457582b25c\":\"1226a3e50ff92f5dab422db87842255451fa2f8086bf343bae26af457582b25c\",\"artifact:3325:1d25432380d448d58b9e31475b0bfc35901209f26e26e5fd45b5b31ac2e7e2ce\":\"1d25432380d448d58b9e31475b0bfc35901209f26e26e5fd45b5b31ac2e7e2ce\",\"artifact:3325:2004681ac8d819333e4d04d5ab57fd28d055a7035631698a2cec8536154d015e\":\"2004681ac8d819333e4d04d5ab57fd28d055a7035631698a2cec8536154d015e\",\"artifact:3325:25be74348f765e258685ae1d439a2a4c6c3e59b6345a7fb36c9457d030d87591\":\"25be74348f765e258685ae1d439a2a4c6c3e59b6345a7fb36c9457d030d87591\",\"artifact:3325:2a1f202263197faa8045a2689a617fcdaf40b56702ce007a61d7e83e533d8587\":\"2a1f202263197faa8045a2689a617fcdaf40b56702ce007a61d7e83e533d8587\",\"artifact:3325:2cad70f7834284121d12404f31796bdd898e46f170cf591103ba7cf108612b8c\":\"2cad70f7834284121d12404f31796bdd898e46f170cf591103ba7cf108612b8c\",\"artifact:3325:485a901b0724694d71d280bee8fe0db1442c8b724005457ca8271596f164f081\":\"485a901b0724694d71d280bee8fe0db1442c8b724005457ca8271596f164f081\",\"artifact:3325:5bea325dd35e7ba1895c6b1878be6bcbcc137e464c36f476f3672e6ec6b5c4b8\":\"5bea325dd35e7ba1895c6b1878be6bcbcc137e464c36f476f3672e6ec6b5c4b8\",\"artifact:3325:6367c3b1d4f6087142e1a8b51e54a2e61ab769078d783b6964b2f219610ed58b\":\"6367c3b1d4f6087142e1a8b51e54a2e61ab769078d783b6964b2f219610ed58b\",\"artifact:3325:8317a3a34847668896b7ebf5b05bb5e34521ba1892c6503cbd7e6e54901c2fff\":\"8317a3a34847668896b7ebf5b05bb5e34521ba1892c6503cbd7e6e54901c2fff\",\"artifact:3325:99eb1f2bae03355c9c9c87f8d5c4e8786b221b0057b24ae76406023f1bd1c6eb\":\"99eb1f2bae03355c9c9c87f8d5c4e8786b221b0057b24ae76406023f1bd1c6eb\",\"artifact:3325:b2eb5dc30feb10cc0612f229b89335ddd2a777bcb6c3ea5ee98cf2bfd308eb9d\":\"b2eb5dc30feb10cc0612f229b89335ddd2a777bcb6c3ea5ee98cf2bfd308eb9d\",\"artifact:3325:d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0\":\"d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0\",\"artifact:3325:df9ff77ebc309a4a3a225acad321c7bb4426a2d2cf77555aff1657f23c654297\":\"df9ff77ebc309a4a3a225acad321c7bb4426a2d2cf77555aff1657f23c654297\"},\"sha256\":\"23a8897abecbcf4a4988af08a3f7536a2d88222b294f8a866e2b02e9bb8585f5\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: [{\"key\":\"d6-engine-screen-728-ihvs\",\"kind\":\"throughput\",\"domain_md\":\"dbbw.c 4913c778 '6 neon', seed 6887, 8 threads, 2 s per IHV, Apple M1; drift control b32cfe74 x9, CV 1.9%.\",\"statement_md\":\"Over #3194's 728 own dBB block-1 IHVs, dbbw d6 r1/s (2 s x 8-thread pilots) ranges 25,466..319,155 (median 94,889, p90/p10 3.15). Spearman with census P(legal) is 0.531; with trials per draw 0.915. b32cfe74 ranks 6th.\",\"assumptions_md\":\"Short pilots; ranks are a screen. Census from #3194 (nq1 1024, seed 6726).\",\"artifact_sha256\":[\"d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0\",\"08b57470f2daf406c2185862f06f9eef94ab57e680c5cdd28cd28f87039249ca\"],\"transfer_conditions_md\":\"Rates are host-specific; ranks should transfer across NEON hosts with the same engine.\",\"scope_sha256\":\"b6c359108c295e5c10bf8e6f2c1f36369474e0094df9ef21216a6ed4540144f4\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]},{\"key\":\"d6-engine-selection-69dddd26\",\"kind\":\"throughput\",\"domain_md\":\"dbbw.c 4913c778 d6 N1w, 8 threads, Apple M1.\",\"statement_md\":\"30 s back-to-back pilots (seed 6888): 69dddd26 d14b5d9e a34f37fd c56af81a gives 316,277 legal r1/s, 1.216x b32cfe74 (260,180); p32 is homogeneous over 13 pilots (p 0.975).\",\"assumptions_md\":\"Poisson s32 counts; the s32-only ratio 1.12 (CI 0.94..1.33) does not separate them alone.\",\"artifact_sha256\":[\"5bea325dd35e7ba1895c6b1878be6bcbcc137e464c36f476f3672e6ec6b5c4b8\",\"b2eb5dc30feb10cc0612f229b89335ddd2a777bcb6c3ea5ee98cf2bfd308eb9d\"],\"transfer_conditions_md\":\"Same engine and host class.\",\"scope_sha256\":\"cff83474e686e2e5576b2394494ebcaa3ab71db9fa31f9b31135d3eda4b06ba4\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]},{\"key\":\"d6-census-engine-class-identity\",\"kind\":\"finite\",\"domain_md\":\"dbbw d6 N1w uniform (Q1,u) base draws; census6 same trail definition.\",\"statement_md\":\"Legal round-1 outputs per base draw equal census P(legal) x E_u[g], where E_u[g] is the mean class size over legal outputs (#3160 class law). On the witness IHV the engine and census give E_u[g] = 11.63, against #3160's directly measured 12.03.\",\"assumptions_md\":\"Derivation assumes #3160's coset structure; one IHV compared directly.\",\"artifact_sha256\":[\"d70dc59ab41f6ff78cebba4e01d9abae461e2d4345c856cd75d96d18c23187c0\",\"2c769cf2a442f819652f328c0089ca9130cbebe371986997201529b95832bd01\",\"9d88fa03c428bbf1a424b8aa5ab1aa8154b05c3260adb932621c8aeb7ec90c8e\"],\"transfer_conditions_md\":\"Any tunnel search whose class key is fixed by later states.\",\"scope_sha256\":\"d78998d29c241a1ed4c3d5aca46a511dd018f5e519f7099293a2e9587de0aa6d\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]},{\"key\":\"d6-69dddd26-2h-no-hit\",\"kind\":\"negative\",\"negative\":{\"kind\":\"attempt_failed\",\"evidence_md\":\"2 h x 8 threads, P(hit) 0.65 predicted in amendment 1 before the run, no hit.\",\"revisit_when_md\":\"Further d6 hours down the E1 ranking under the greedy schedule.\"},\"domain_md\":\"dbbw.c 4913c778 d6 N1w; last 60 s of the planned 7,200 s unobserved (harness cap).\",\"statement_md\":\"No 140 B collision in 7,140 observed s of dbbw d6 on 69dddd26 (seed 6889, 8 threads): 2,271,936,397 legal r1 outputs, 69,958 reaching step 32; expected 1.07 blocks under the 2^-16 round-4 model.\",\"assumptions_md\":\"Sampling with replacement; B/2^47 about 0.006 at the end.\",\"artifact_sha256\":[\"df9ff77ebc309a4a3a225acad321c7bb4426a2d2cf77555aff1657f23c654297\",\"1226a3e50ff92f5dab422db87842255451fa2f8086bf343bae26af457582b25c\",\"10fd2da72827872fa23ddf4381f08ff3b41e26d9f2d7b1a70cfc0d1e088af5e8\"],\"transfer_conditions_md\":\"Does not bound lambda6 on this IHV.\",\"scope_sha256\":\"fdcb4ea8c52f381eae5ccd55467cb46aa56135c513bdd0a54a323e406dfd3f69\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]},{\"key\":\"d6-ihv-rotation-schedule\",\"kind\":\"method\",\"domain_md\":\"rotation.py model; E1 rates; p32 2.99e-05; round 4 2^-16.\",\"statement_md\":\"Under #3160's class law rescaled per IHV, a greedy schedule over the E1 top 40 IHVs gives 1.34x (8 h) and 2.0x (24 h) the expected 140 B blocks of staying on the best IHV, and under 1.07x at 2 h.\",\"assumptions_md\":\"Heuristic: the witness g-law shape is assumed for every IHV; new-IHV overhead ignored.\",\"artifact_sha256\":[\"0fda387d18958f98d9a8383524e0fabefea20255f10e7b02f4b8758c84e6b546\",\"485a901b0724694d71d280bee8fe0db1442c8b724005457ca8271596f164f081\"],\"transfer_conditions_md\":\"Any per-IHV saturating tunnel search with cheap first blocks.\",\"scope_sha256\":\"398b19415b71c90b1ae2990dca757e7880e6e7b1038fb796ea4437a5ffcb05b2\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]}]\nConfigured areas: [{\"id\":\"self-match\",\"title\":\"Self match: a 32-character hex string equal to its own MD5\",\"lane\":\"self-match\",\"topic_ids\":[\"self-match.methods\",\"self-match.study-1\",\"self-match.study-2\",\"self-match.study-3\"],\"domain_md\":\"The candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\\n\\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\\nThe candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\\n\\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.\"},{\"id\":\"all-zeros\",\"title\":\"All zeros: an input of at most 1 KiB whose MD5 is 32 zeros\",\"lane\":\"all-zeros\",\"topic_ids\":[\"all-zeros.methods\",\"all-zeros.study-1\",\"all-zeros.study-2\",\"all-zeros.study-3\"],\"domain_md\":\"The input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\\n\\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\\nThe input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\\n\\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.\"},{\"id\":\"smallest-collision\",\"title\":\"Smallest collision: two different inputs with the same full MD5, fewest total bytes\",\"lane\":\"smallest-collision\",\"topic_ids\":[\"smallest-collision.methods\",\"smallest-collision.study-1\",\"smallest-collision.study-2\",\"smallest-collision.study-3\"],\"domain_md\":\"Inputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\\n\\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\\nInputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\\n\\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.\"}]\n\nFor each area return applicability_assessment:{source_return_id:3325,input_sha256:\"961a2bbbd92ca864dd1da03c88dd2fe8db39de077e56b58fe03533bfd6fa0fc4\",entries:[{target_id,decision:\"applicable|inapplicable|unresolved\",scope_keys:[<declared source keys; [] when the accepted report has no typed scope>],evidence_md,assumptions_md}]}. Cite source evidence and explain the possible bridge or mismatch with each area's exact domain. Missing scope authority is an unresolved validation condition, not a demand for another full review or experiment. Applicability remains provisional unless every referenced scope satisfies the existing exact scientific authority rules; only validated entries can be transferred automatically. Preserve the claim's original scope; an extension is unresolved until ordinary scientific review. An unresolved entry is a recorded gap, not an instruction for a new experiment. Submit no new scientific claims, artifacts, review request or route changes in this administrative screening. Record existing evidence even when every area is inapplicable. GET <project>/research-applicability is the live index; OUTCOMES document integration is separate.","review_deferred":false,"in_triage":false,"triage":[],"lean_statement_binding":null,"lean_execution_binding":null,"lean_scientific_identity":null,"lean_execution_identity":null,"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[],"cited_by":[],"route_dependents":[],"research_url":null,"transcript_url":"/projects/md5/return/6627/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"71ff56826d810a8ccee999ec35ef1d504f1c4875cfc4af08654a0f246f93c19b","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}