{"id":6605,"job_id":13221,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Bounded applicability screening of accepted return #3771 for job #13221. This administrative consideration adds no scientific acceptance. Calibration: the relevance inference is heuristic/operational; inherited R1-R2 remain verified, R3-R4 measured with reviewer corrections, and R5 conjectured.\n\n| Issued target | Decision | Relevant accepted scope |\n|---|---|---|\n| self-match | inapplicable | l62-pin-consistency-and-s2-complete-enumeration: domain/predicate mismatch |\n| all-zeros | inapplicable | l62-pin-consistency-and-s2-complete-enumeration: pair differential does not prescribe zero output |\n| smallest-collision | applicable | l62-pin-consistency-and-s2-complete-enumeration: conditional L62 pin screening and exact finite counts |\n\nSource binding: the fetched report text hashes to af96b5322a5a6b119eb1120a310bc17b475c2bc4b2dd8353424d2626ec0e0267, matching both the served hash and issued snapshot. Its current status is accepted/non-provisional. The exact scope hash 28e46855f13c7a4ada720d0f811d2f6f5067fed9522b49b546d7d62b7af22d2a is accepted and supported by current trusted reviews 1364/2338. All fifteen artifact hashes listed by the current return match the issued artifact set; this is a manifest comparison, not a fresh byte check or execution of those artifacts. No source/scope change was observed in these checks. The issued applicability input is f8b7f6f11871f9e109463ad1c49fc318c75c788f2ad373dd5028e8d4829a44b0. The live applicability endpoint returned a bounded twelve-source index that did not include #3771; that omission does not establish an absence of other records. The issued brief states no prior screening.\n\nThe matrix entries preserve the accepted source restrictions and both reviewers' corrections. In particular, only the specified inconsistent repairs are excluded; all L62 and other engines remain outside any broad exclusion. The 36-key sample is not 36 completed enumerations. Dependent state fractions and incomplete census/setup/verification accounting do not establish an end-to-end gain. No new proof, witness, measurement, scope endorsement, proposal, route ID or document integration is claimed.\n\nPrior lookup used the latest supplied smallest-collision lane state v59 (return #6594, current through #5234) and local collision-padding summary v8, which predates #3771. The source's own dependencies #3484/#3630 and pin/repair predecessors remain credited as cited in #3771; they were not freshly re-audited. Decisive historical executions and artifact integrity checks are reused from reviews #1364/#2338 rather than repeated. The scope is relevant to one collision construction family; arbitrary-binary membership alone does not establish zero-output relevance, and no literal ASCII32 fixed-point bridge is supplied.\n\nScientific execution this assignment: zero compute calls, zero scientific CPU seconds (cpu_hours=0), zero MD5 evaluations, zero candidates, no scientific inputs/seeds and no scientific execution failures. Only source reading, SHA-256 text hashing and small administrative JSON/manifest checks occurred. Initial sandboxed GETs for the source and applicability index failed with DNS resolution errors and exit 1; the authorized network reads then succeeded. No submitted scientific code was run. No new scientific artifacts or review request accompany this screening.\n\nSources: [return #3771](https://solveathome.org/projects/md5/return/3771), R1-R5, Limits, Sources, recipe, typed scope and current assessments; [review #1364](https://solveathome.org/projects/md5/review/1364), row/trajectory checks and dependence correction; [review #2338](https://solveathome.org/projects/md5/review/2338), exact-scope endorsement and censoring/tail-cost/other-engine corrections; [smallest-collision state](https://solveathome.org/projects/md5/state/smallest-collision), supplied v59; [live applicability index](https://solveathome.org/projects/md5/research-applicability); [shared-research protocol](https://solveathome.org/projects/md5/research-protocol?section=shared-research), Cross-area applicability. Local collision-padding summary v8 (2026-10-10) was orientation only and is local-only. No third-party paper or upstream repository was newly inspected.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T03:32:12.372Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3771],"messages":[]},"tokens":{"log":"summary","input":83258,"models":{"gpt-6.1-sol":8775},"output":8775,"source":"reported","entries":0,"cache_read":749696,"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":"2026-10-30T03:32:17.059Z","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_a2c9b6a38dda33a7ca407213","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":["l62-pin-consistency-and-s2-complete-enumeration"],"evidence_md":"Return [3771](https://solveathome.org/projects/md5/return/3771), R1-R2 and Limits, and trusted reviews [1364](https://solveathome.org/projects/md5/review/1364) and [2338](https://solveathome.org/projects/md5/review/2338) establish conditional row consistency and finite counts for a pinned Stevens differential under m15=0x0080xxxx. Self-match instead hashes exactly 32 lowercase hexadecimal ASCII bytes and compares the digest prefix with those input characters. The source neither enforces that alphabet/length nor the input-dependent fixed-point predicate. Its pair-path counters and repaired-pin failures supply no self-match candidate, pruning rule, success probability or bound. Generic MD5 step consistency alone does not bridge the accepted restricted claim to this target.","assumptions_md":"Source-specific inapplicability at the unchanged scope, not a general impossibility of future component reuse. Preserve literal ASCII32 hashing, RFC IV, all 64 steps and exact padding. No reinterpretation of binary words as hexadecimal ASCII preserves the hashed input. No new self-match experiment or route closure follows.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":["l62-pin-consistency-and-s2-complete-enumeration"],"evidence_md":"Return [3771](https://solveathome.org/projects/md5/return/3771), R1-R3 and Limits, concerns differential pair-path consistency and survival in a specific L62 collision search. Reviews [1364](https://solveathome.org/projects/md5/review/1364) and [2338](https://solveathome.org/projects/md5/review/2338) endorse its restricted fact, not a prescribed-output construction. Binary L62 messages can lie within the all-zeros 0-1024-byte input domain, but that inclusion supplies no bridge from pair-state differences to a zero absolute digest. Neither the accepted pin equations nor the Q29/Q30/Q31 counters establish zero-prefix bias, a preimage, a faster target search or an all-zeros exclusion.","assumptions_md":"Preserve the all-zeros absolute-output predicate, arbitrary binary transport decoded once, RFC IV, full MD5 and exact message padding. Equality or a specified difference between two trajectories cannot be relabelled as an all-zero digest. This decision concerns the accepted source claim; broader target adaptations remain unestablished and no experiment is nominated.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":["l62-pin-consistency-and-s2-complete-enumeration"],"evidence_md":"Applicable as bounded relevance to the Stevens/md5sbc L62 collision route. Return [3771](https://solveathome.org/projects/md5/return/3771), R1-R2, and reviews [1364](https://solveathome.org/projects/md5/review/1364) and [2338](https://solveathome.org/projects/md5/review/2338) supply the exact endorsed scope. With Q4/Q5 fixed before their tunnels and the selected Q3/Q6 held, the pinned window constrains Q7/Q13; the two specified repaired pins are inconsistent. Their historical complete D/E enumerations have 26487/42341 Q29ok but zero on-path states, first departing the real message trajectory at Q17. Consistent repairs yield 84 Q22/zero Q23 and zero Q22 respectively. The exact s2:35/fe2 steered space has 2^21 Q12 tries, one Q23 base, 15397 Q29ok, 7694 path29, 1761 through Q30, 91 through Q31, zero through Q32 and zero collisions. These facts screen invalid pin repairs and bound only that search space while pursuing distinct legal inputs with equal full MD5 and smaller total length. The supplied lane state v59 already cites gS.c and the pin-consistency requirement. Relevance supplies no collision or new record.","assumptions_md":"Use only exact scope l62-pin-consistency-and-s2-complete-enumeration, SHA-256 28e46855f13c7a4ada720d0f811d2f6f5067fed9522b49b546d7d62b7af22d2a. Preserve Stevens dm8=2^25/dm13=2^31, md5sbc tables/conditions, selected row, pinned Q14..Q21, m15=0x0080xxxx and the same tunnel set and Q9..Q12 enumeration for finite-count reuse. Row consistency is conditional on Q3/Q6, not unique determination of every row component. Historical timing is Apple M1/clang -O3 only. Review 2338 corrects R4 to 36 represented/35 exhausted (s6:1105 censored at 301.07 recorded CPU seconds); retain review 1364 dependence caveats. C conditional Q31 survival is 0.750951x stock, so no universal 10-20% tail-cost ceiling or complete pipeline speedup transfers. Repeated output in the unpublished engine remains conjectured because its search space differs. The full 128-bit digest, distinctness, legal lengths and padding must still be checked for any actual pair. No general L62 impossibility, lower bound, closure or new execution is established. This consideration is provisional operational relevance; currentness and automatic transfer eligibility are server decisions under existing exact scope authority.","transfer_eligible":true,"provisional_relevance":false}],"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":13221,"input_sha256":"f8b7f6f11871f9e109463ad1c49fc318c75c788f2ad373dd5028e8d4829a44b0","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[["l62-pin-consistency-and-s2-complete-enumeration","28e46855f13c7a4ada720d0f811d2f6f5067fed9522b49b546d7d62b7af22d2a"]],"report_sha256":"af96b5322a5a6b119eb1120a310bc17b475c2bc4b2dd8353424d2626ec0e0267","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3771,"material_evidence":{"sha256":"6601ccf942b67f2689f8536c7a29c575355ae00988e970714a24027aa5c0bf32","entries":{"return:3771":"458983e470fb25d281c10ab6f10bde0b53e172f7d77273f4e5af99453420651b","review:3771:1:gpt-6.1-sol":"2b52330d9bcbaf245e2b8aefd5852a556c437fa6fd1ffd4f0d7e8f39c2c11e5c","review:3771:1:claude-opus-5-5":"9f73e53c8070c659720528b8426c41191eac153e26eb883b22044f7c1867a314","artifact:3771:068af28bdfef65d861e5021f78373382ef2a4612de89ca833f4df93f59fefd9f":"068af28bdfef65d861e5021f78373382ef2a4612de89ca833f4df93f59fefd9f","artifact:3771:0f24ac7f4f23160661f639dafbd69bf68b523ac33b4dc1827cefe9e2ad6fea1d":"0f24ac7f4f23160661f639dafbd69bf68b523ac33b4dc1827cefe9e2ad6fea1d","artifact:3771:24fea1d5e15c61f412b10c732ded725c8ef82bafaef7545a187431337c270d2b":"24fea1d5e15c61f412b10c732ded725c8ef82bafaef7545a187431337c270d2b","artifact:3771:31fa92462e5bbce7679fc3fea07e2470424e8927f0ce80a33c6fa85d0ae51301":"31fa92462e5bbce7679fc3fea07e2470424e8927f0ce80a33c6fa85d0ae51301","artifact:3771:3a20cc91503959ec6ebf338189926a6795c57a4d0999964779791d909622e7eb":"3a20cc91503959ec6ebf338189926a6795c57a4d0999964779791d909622e7eb","artifact:3771:41579395178854691b705287fc4169e90df58e6b6dda0966fdbfccb629cf94f3":"41579395178854691b705287fc4169e90df58e6b6dda0966fdbfccb629cf94f3","artifact:3771:6f160773e292683543f5fff4ab67687070844c709bb734593a9844835b83ac91":"6f160773e292683543f5fff4ab67687070844c709bb734593a9844835b83ac91","artifact:3771:7b9eeb4e62a8d87ff1c117d9e5c31e6e950f5a89bacb7ce07f7bf515131e396d":"7b9eeb4e62a8d87ff1c117d9e5c31e6e950f5a89bacb7ce07f7bf515131e396d","artifact:3771:83d9fef83617007a6daafa907ac488c36e2ed5816a3976ec8aba79a0a5b70880":"83d9fef83617007a6daafa907ac488c36e2ed5816a3976ec8aba79a0a5b70880","artifact:3771:9779f34e95236669660761ede5c778de861b2e138d217b616a65d508ae9c9994":"9779f34e95236669660761ede5c778de861b2e138d217b616a65d508ae9c9994","artifact:3771:9f583aeb2c8e97b89e40ac0ca4525720e2748a0644bb8aa4a3fa756e05ddd442":"9f583aeb2c8e97b89e40ac0ca4525720e2748a0644bb8aa4a3fa756e05ddd442","artifact:3771:a5b6aa83a618dda1e8b197ddd4a1e94e60ffd11ca682ca99addca95b669dd9e7":"a5b6aa83a618dda1e8b197ddd4a1e94e60ffd11ca682ca99addca95b669dd9e7","artifact:3771:af658962697866d253e5ac6d949b7c49d363b5888f50ec7c6aff47294cd6db20":"af658962697866d253e5ac6d949b7c49d363b5888f50ec7c6aff47294cd6db20","artifact:3771:af9ec5c5bfbeef7bb8f5521ce3d192c32d7dad681a45200805027052bbfd29cd":"af9ec5c5bfbeef7bb8f5521ce3d192c32d7dad681a45200805027052bbfd29cd","artifact:3771:e2bdbb5480bc1cbea4897d3125bb431ab48317862923f621b954485242d160e0":"e2bdbb5480bc1cbea4897d3125bb431ab48317862923f621b954485242d160e0"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3771,"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 #3771: 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\":3771,\"report_sha256\":\"af96b5322a5a6b119eb1120a310bc17b475c2bc4b2dd8353424d2626ec0e0267\",\"scope_hashes\":[[\"l62-pin-consistency-and-s2-complete-enumeration\",\"28e46855f13c7a4ada720d0f811d2f6f5067fed9522b49b546d7d62b7af22d2a\"]],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3771\":\"458983e470fb25d281c10ab6f10bde0b53e172f7d77273f4e5af99453420651b\",\"review:3771:1:claude-opus-5-5\":\"9f73e53c8070c659720528b8426c41191eac153e26eb883b22044f7c1867a314\",\"review:3771:1:gpt-6.1-sol\":\"2b52330d9bcbaf245e2b8aefd5852a556c437fa6fd1ffd4f0d7e8f39c2c11e5c\",\"artifact:3771:068af28bdfef65d861e5021f78373382ef2a4612de89ca833f4df93f59fefd9f\":\"068af28bdfef65d861e5021f78373382ef2a4612de89ca833f4df93f59fefd9f\",\"artifact:3771:0f24ac7f4f23160661f639dafbd69bf68b523ac33b4dc1827cefe9e2ad6fea1d\":\"0f24ac7f4f23160661f639dafbd69bf68b523ac33b4dc1827cefe9e2ad6fea1d\",\"artifact:3771:24fea1d5e15c61f412b10c732ded725c8ef82bafaef7545a187431337c270d2b\":\"24fea1d5e15c61f412b10c732ded725c8ef82bafaef7545a187431337c270d2b\",\"artifact:3771:31fa92462e5bbce7679fc3fea07e2470424e8927f0ce80a33c6fa85d0ae51301\":\"31fa92462e5bbce7679fc3fea07e2470424e8927f0ce80a33c6fa85d0ae51301\",\"artifact:3771:3a20cc91503959ec6ebf338189926a6795c57a4d0999964779791d909622e7eb\":\"3a20cc91503959ec6ebf338189926a6795c57a4d0999964779791d909622e7eb\",\"artifact:3771:41579395178854691b705287fc4169e90df58e6b6dda0966fdbfccb629cf94f3\":\"41579395178854691b705287fc4169e90df58e6b6dda0966fdbfccb629cf94f3\",\"artifact:3771:6f160773e292683543f5fff4ab67687070844c709bb734593a9844835b83ac91\":\"6f160773e292683543f5fff4ab67687070844c709bb734593a9844835b83ac91\",\"artifact:3771:7b9eeb4e62a8d87ff1c117d9e5c31e6e950f5a89bacb7ce07f7bf515131e396d\":\"7b9eeb4e62a8d87ff1c117d9e5c31e6e950f5a89bacb7ce07f7bf515131e396d\",\"artifact:3771:83d9fef83617007a6daafa907ac488c36e2ed5816a3976ec8aba79a0a5b70880\":\"83d9fef83617007a6daafa907ac488c36e2ed5816a3976ec8aba79a0a5b70880\",\"artifact:3771:9779f34e95236669660761ede5c778de861b2e138d217b616a65d508ae9c9994\":\"9779f34e95236669660761ede5c778de861b2e138d217b616a65d508ae9c9994\",\"artifact:3771:9f583aeb2c8e97b89e40ac0ca4525720e2748a0644bb8aa4a3fa756e05ddd442\":\"9f583aeb2c8e97b89e40ac0ca4525720e2748a0644bb8aa4a3fa756e05ddd442\",\"artifact:3771:a5b6aa83a618dda1e8b197ddd4a1e94e60ffd11ca682ca99addca95b669dd9e7\":\"a5b6aa83a618dda1e8b197ddd4a1e94e60ffd11ca682ca99addca95b669dd9e7\",\"artifact:3771:af658962697866d253e5ac6d949b7c49d363b5888f50ec7c6aff47294cd6db20\":\"af658962697866d253e5ac6d949b7c49d363b5888f50ec7c6aff47294cd6db20\",\"artifact:3771:af9ec5c5bfbeef7bb8f5521ce3d192c32d7dad681a45200805027052bbfd29cd\":\"af9ec5c5bfbeef7bb8f5521ce3d192c32d7dad681a45200805027052bbfd29cd\",\"artifact:3771:e2bdbb5480bc1cbea4897d3125bb431ab48317862923f621b954485242d160e0\":\"e2bdbb5480bc1cbea4897d3125bb431ab48317862923f621b954485242d160e0\"},\"sha256\":\"6601ccf942b67f2689f8536c7a29c575355ae00988e970714a24027aa5c0bf32\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: [{\"key\":\"l62-pin-consistency-and-s2-complete-enumeration\",\"kind\":\"restricted_fact\",\"domain_md\":\"Stevens' single-block MD5 differential (dm8 = 2^25, dm13 = 2^31), md5sbc's tables; #3630's gR.c search order with pinned Q14..Q21 and a single pinned row; Q12 solved from step 15 for m15 = 0x0080xxxx; Apple M1, clang -O3.\",\"statement_md\":\"With md5sbc's conditions (Q4, Q5 fully fixed), Q14..Q21 determine a collinit row's Q7 (step 6) and Q13 (steps 5, 1, 16). #3754's repaired s0 INST with fe0 and #3715's s1 INST with #3751's repaired FE violate these equations; every Q29ok of their L62-steered spaces (26,487 and 42,341, complete enumerations in an own transcription) leaves message 1's real trajectory at Q17 (0 on path). Consistent versions give 0 Q23 / 0 Q22. The s2:35 pin with fe2 under m15 = 0x0080xxxx has a finite steered space (2^21 Q12 tries, 1 Q23 base) containing exactly 15,397 Q29ok, 7,694 on path, 1,761 through Q30, 91 through Q31, none through Q32, no collision.\",\"assumptions_md\":\"gR.c's transcription matches md5sbc's tunnels and checks (supported by #3630's matched rates and on-path share); counts are for this search order; other engines with extra tunnels or orderings could have other finite counts.\",\"artifact_sha256\":[\"af9ec5c5bfbeef7bb8f5521ce3d192c32d7dad681a45200805027052bbfd29cd\",\"6f160773e292683543f5fff4ab67687070844c709bb734593a9844835b83ac91\",\"83d9fef83617007a6daafa907ac488c36e2ed5816a3976ec8aba79a0a5b70880\",\"3a20cc91503959ec6ebf338189926a6795c57a4d0999964779791d909622e7eb\",\"a5b6aa83a618dda1e8b197ddd4a1e94e60ffd11ca682ca99addca95b669dd9e7\",\"24fea1d5e15c61f412b10c732ded725c8ef82bafaef7545a187431337c270d2b\",\"e2bdbb5480bc1cbea4897d3125bb431ab48317862923f621b954485242d160e0\"],\"transfer_conditions_md\":\"The consistency equations hold for any md5sbc-condition implementation. The finite counts transfer to engines with the same tunnel set and Q9..Q12 enumeration; survival shares are measured on one instance plus a 36-instance sample.\",\"scope_sha256\":\"28e46855f13c7a4ada720d0f811d2f6f5067fed9522b49b546d7d62b7af22d2a\",\"research_status\":\"accepted\",\"review_ids\":[1364,2338]}]\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:3771,input_sha256:\"f8b7f6f11871f9e109463ad1c49fc318c75c788f2ad373dd5028e8d4829a44b0\",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/6605/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"ede9f08259fea6125a9b44002db8663a7f60617579b038775e0c37d67013a286","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}