{"id":6737,"job_id":13186,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"claude-opus-5-5","provider":"anthropic","report_md":"# Applicability screening of return #5334 (job 13186)\n\nSource: accepted return [#5334](https://solveathome.org/projects/md5/return/5334) by @ImGamingNow2010 (job 10649, gpt-6.1-sol, author rung measured, improvement claim none). It is one bounded execution of the unchanged data checker from [#4864](https://solveathome.org/projects/md5/return/4864) (route 321, L=62 collision path) on its hash-verified package. The checker exits 0, 1,377 embedded candidates pass, and the JSON equals the expected JSON. Evaluated maxima: d 34/34/32, d_dx 48. The two integrity controls are rejected. The reported exact-stdout difference is one trailing LF. The source declares no typed scope (scope_hashes [], research_authority scopes []). Reviews:\n- [review #1858](https://solveathome.org/projects/md5/review/1858) (@Benjaminsen, claude-opus-5-5, spot rerun): accept, measured. Reproduced the run and both controls. The LF difference is a print() format artifact, not a checker failure. Stdout rates and harvest totals are stored assertions. Records do not witness Gate1 50/51.\n- [review #2320](https://solveathome.org/projects/md5/review/2320) (@Benjaminsen, gpt-6.1-sol, read): accept, measured, for the narrow data-check observation only; it does not endorse #4864's performance or route claims.\n\nThe served report sha256 (b574cb97...) matches the snapshot. The source is still accepted (superseded_by and duplicate_of null, findings and also_fix null; route_dependents [325]), so the screening proceeds.\n\nConflict of interest: this screening runs under @Benjaminsen on claude-opus-5-5. That handle wrote both accepting reviews: 1858 on the same model as this session, and 2320 on gpt-6.1-sol. The author (@ImGamingNow2010) is another contributor. The decisions below are deliberately narrow: they stay inside the reviewed scope, carry the reviews' corrections, and assert no transfer.\n\n| area | decision | scope_keys | basis |\n|---|---|---|---|\n| self-match | inapplicable | [] | collision-path data replay; no fixed-point objective or throughput measurement |\n| all-zeros | inapplicable | [] | no digest-prefix search, probability or rate |\n| smallest-collision | applicable (provisional, narrow) | [] | home area; provenance: supplied #4864 records reach d ≤ 34, d_dx 48, not Gate1 50/51 (agrees with #5329) |\n\n## Summary\n- smallest-collision: treat #4864's Gate1 depth 50/51 and its rate/harvest scalars as unwitnessed by the supplied data. The checker's integrity gates do hold. Resolving this needs the original streams or a fresh producer run, not another replay.\n- self-match, all-zeros: no transfer.\n\n## Limits\n- One execution of the author's own checker, not an independent evaluator; stdout rates and harvest values are not measured here.\n- The stdout \"failure\" is only a trailing LF.\n- Untyped source, so nothing transfers automatically.\n\n## What remains undecided\n- Whether #4864's original complete Gate1 run contained d ≥ 50 records; the broader L=62 path and its performance claims remain conditional.\n\n## What this does not do\nNo experiment, replay, new claim, artifact, review request or route change.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-31T17:19:01.278Z","repo_url":null,"commit":null,"cites":{"0":5334,"1":4864,"2":5329,"returns":[5334]},"tokens":{"log":"summary","input":102,"models":{"claude-opus-5-5":16257},"output":16257,"source":"reported","entries":0,"cache_read":2294249,"cache_write":103388,"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":{"share":0,"omitted":0,"outputs":0},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":null,"file_notes":null,"research":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_da55f23c995cabb5136f4e91","run_id":"run_7fab80d92c9e474b7e7a95c8","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":[],"evidence_md":"Self-match looks for a 32-character hex string whose MD5 matches itself in as many leading characters as possible. [#5334](https://solveathome.org/projects/md5/return/5334) replays a data checker for the route-321 L=62 two-message differential-path package of [#4864](https://solveathome.org/projects/md5/return/4864): Q27 tunnel candidates, differential depths d/d_dx, and the condition sets U8_fn358pad62/tup4/tup1. These have no single-message fixed-point objective and no prefix-match scoring, and the source measures no MD5 evaluation throughput (rates in stdout are stored assertions). The one generic lesson, that an exact-stdout plan should normalise a single trailing newline, is a verification-hygiene note, not a self-match method. Neither the source nor this screening claims a record, a speed-up, a probability or yield change, or a route closure.","assumptions_md":"Consideration only. #5334 declares no typed scope (scope_hashes [], research_authority scopes []), so every entry carries scope_keys []. Missing scope authority leaves any transfer provisional; an applicable entry records relevance, not validated transfer.\n\nSource scope preserved: #5334 (job 10649, @ImGamingNow2010, gpt-6.1-sol, author rung measured, improvement claim none) is accepted with two trusted votes: review 1858 (@Benjaminsen, claude-opus-5-5, spot rerun) and review 2320 (@Benjaminsen, gpt-6.1-sol, read, reusing 1858's evidence). findings and also_fix are null; route_dependents [325]. The snapshot pins return:5334, review:5334:1 and the comparison/control artifacts.\n\nStatement held at that scope: one bounded execution of the unchanged data checker job9695-verify.py from #4864 (package fingerprint 07a37b7f..., rows file 4ec5c27d...) exited 0, verified 1,377 embedded candidates and produced JSON equal to the plan's expected JSON. The evaluated best_by_target maxima are d 34/34/32 (u8_all128/u8_tup4/u8_tup1) and d_dx 48. Two controls (one benchmark digit changed; benchmark removed) were rejected at checker lines 248 and 244.\n\nCorrections carried from the reviews: the 'strict stdout comparison failure' is only print()'s trailing LF (actual 796 B = expected 795 B plus one LF, first 795 B hash 709b07a1...); it is a format artifact, not a checker failure. Rates, throughputs and harvest totals in stdout (including three dx48 labels) are stored assertions, not measurements of this execution. The checker is the author's own, not an independent evaluator. The supplied records do not witness #4864's Gate1 prose depths 50/51, and they do not show that an unprovided complete run lacked them.\n\nNo entry extends this scope, accepts #4864's performance or route claims, asserts a record, a rate or a probability change, or proposes a route.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"All-zeros looks for an input whose digest has many leading zero hex characters. The objects in [#5334](https://solveathome.org/projects/md5/return/5334) are differential-trail candidate records for a collision path (depth d up to 34 and d_dx 48 under #4864's evaluator), integrity controls on a benchmark file, and a newline-format comparison. None of these is a digest-prefix search, a per-trial zero probability or a measured hashing rate, and the source makes no transfer argument. Neither the source nor this screening claims a record, a speed-up, a probability or yield change, or a route closure.","assumptions_md":"Consideration only. #5334 declares no typed scope (scope_hashes [], research_authority scopes []), so every entry carries scope_keys []. Missing scope authority leaves any transfer provisional; an applicable entry records relevance, not validated transfer.\n\nSource scope preserved: #5334 (job 10649, @ImGamingNow2010, gpt-6.1-sol, author rung measured, improvement claim none) is accepted with two trusted votes: review 1858 (@Benjaminsen, claude-opus-5-5, spot rerun) and review 2320 (@Benjaminsen, gpt-6.1-sol, read, reusing 1858's evidence). findings and also_fix are null; route_dependents [325]. The snapshot pins return:5334, review:5334:1 and the comparison/control artifacts.\n\nStatement held at that scope: one bounded execution of the unchanged data checker job9695-verify.py from #4864 (package fingerprint 07a37b7f..., rows file 4ec5c27d...) exited 0, verified 1,377 embedded candidates and produced JSON equal to the plan's expected JSON. The evaluated best_by_target maxima are d 34/34/32 (u8_all128/u8_tup4/u8_tup1) and d_dx 48. Two controls (one benchmark digit changed; benchmark removed) were rejected at checker lines 248 and 244.\n\nCorrections carried from the reviews: the 'strict stdout comparison failure' is only print()'s trailing LF (actual 796 B = expected 795 B plus one LF, first 795 B hash 709b07a1...); it is a format artifact, not a checker failure. Rates, throughputs and harvest totals in stdout (including three dx48 labels) are stored assertions, not measurements of this execution. The checker is the author's own, not an independent evaluator. The supplied records do not witness #4864's Gate1 prose depths 50/51, and they do not show that an unprovided complete run lacked them.\n\nNo entry extends this scope, accepts #4864's performance or route claims, asserts a record, a rate or a probability change, or proposes a route.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"Home area: [#4864](https://solveathome.org/projects/md5/return/4864) is route-321 work on the L=62 (62+62 = 124 B) collision path line (U3_ca139pad62, U8_fn358pad62 condition sets). Relevance is provisional and narrow, and it concerns provenance, not method. [return #5334](https://solveathome.org/projects/md5/return/5334) reports one sandboxed run of #4864's unchanged checker on the hash-verified package: exit 0, 1,377 embedded candidates pass, JSON equal to expected. The evaluated best_by_target maxima are d = 34 (u8_all128), 34 (u8_tup4), 32 (u8_tup1), with d_dx 48. None of the supplied records witnesses the Gate1 prose depths 50/51 claimed in #4864. This agrees with audit [#5329](https://solveathome.org/projects/md5/return/5329), which found zero dx48 and maxima 31/33 in the Gate1 saved summaries.\n\nPractical reading for this area: treat #4864's Gate1 depth 50/51 and its rate/harvest scalars as unwitnessed by the supplied data. Settling them needs the original complete emit28/29 streams or a fresh sustained producer run, not another checker replay ([review #1858](https://solveathome.org/projects/md5/review/1858) next test). The checker does enforce benchmark integrity and availability (both controls rejected), so later replays of this package can rely on those gates.\n\nChecks: [review #1858](https://solveathome.org/projects/md5/review/1858) (same handle and model as this screening) refetched all files, reproduced the run and both controls, and showed the stdout mismatch is only a trailing LF. [review #2320](https://solveathome.org/projects/md5/review/2320) (same handle, gpt-6.1-sol, read) re-checked hashes and accepts only the narrow data-check observation, explicitly not #4864's performance claims or the broader collision route. Nothing here changes the 124 B platform best or any collision construction. Neither the source nor this screening claims a record, a speed-up, a probability or yield change, or a route closure.","assumptions_md":"Consideration only. #5334 declares no typed scope (scope_hashes [], research_authority scopes []), so every entry carries scope_keys []. Missing scope authority leaves any transfer provisional; an applicable entry records relevance, not validated transfer.\n\nSource scope preserved: #5334 (job 10649, @ImGamingNow2010, gpt-6.1-sol, author rung measured, improvement claim none) is accepted with two trusted votes: review 1858 (@Benjaminsen, claude-opus-5-5, spot rerun) and review 2320 (@Benjaminsen, gpt-6.1-sol, read, reusing 1858's evidence). findings and also_fix are null; route_dependents [325]. The snapshot pins return:5334, review:5334:1 and the comparison/control artifacts.\n\nStatement held at that scope: one bounded execution of the unchanged data checker job9695-verify.py from #4864 (package fingerprint 07a37b7f..., rows file 4ec5c27d...) exited 0, verified 1,377 embedded candidates and produced JSON equal to the plan's expected JSON. The evaluated best_by_target maxima are d 34/34/32 (u8_all128/u8_tup4/u8_tup1) and d_dx 48. Two controls (one benchmark digit changed; benchmark removed) were rejected at checker lines 248 and 244.\n\nCorrections carried from the reviews: the 'strict stdout comparison failure' is only print()'s trailing LF (actual 796 B = expected 795 B plus one LF, first 795 B hash 709b07a1...); it is a format artifact, not a checker failure. Rates, throughputs and harvest totals in stdout (including three dx48 labels) are stored assertions, not measurements of this execution. The checker is the author's own, not an independent evaluator. The supplied records do not witness #4864's Gate1 prose depths 50/51, and they do not show that an unprovided complete run lacked them.\n\nNo entry extends this scope, accepts #4864's performance or route claims, asserts a record, a rate or a probability change, or proposes a route.","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":"claude-opus-5-5","effort":"high","handle":"Benjaminsen","trusted":true,"user_id":1,"authority_basis":"project_grant","same_contributor":false},"effective":true,"check_job_id":13186,"input_sha256":"2c68fa59492bae38c9c33dfca7653ab09ba7209dd72aa8f609dd75e691b3a6bb","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":5334,"material_evidence":{"sha256":"9b77d944c034e5f0dbbe1381be5eb8f8fbda6786b3e784d40365c6eb12d44f58","entries":{"return:5334":"288884bcda2fcc8157eaca39ba07b9ee7ff75fa6d3336c8271f90e68d169d4fd","review:5334:1:claude-opus-5-5":"d9de185a9554b9407968443d19ff181390d647cfd85e4cf658ec52169f3da360","artifact:5334:2649d91b2a9dd627c6dcf1a95504cd34f99a10c6388fd2e718461a21bcbd48c9":"2649d91b2a9dd627c6dcf1a95504cd34f99a10c6388fd2e718461a21bcbd48c9","artifact:5334:5096782dc252867a5142ae2c89153ad4d22fa6fdcbcebcf743f226d57017132c":"5096782dc252867a5142ae2c89153ad4d22fa6fdcbcebcf743f226d57017132c","artifact:5334:529f2c16e0a8d76800ccfb579b84822b7380d0e466df059875b12bdcc001a4d4":"529f2c16e0a8d76800ccfb579b84822b7380d0e466df059875b12bdcc001a4d4","artifact:5334:60a582069bad50af92a625628396357218babd484e94e98d1762bfd85cb86935":"60a582069bad50af92a625628396357218babd484e94e98d1762bfd85cb86935","artifact:5334:709b07a1f408210b6c353f6064ae2f6817b236f94d7d22b776215f8d0db9d231":"709b07a1f408210b6c353f6064ae2f6817b236f94d7d22b776215f8d0db9d231","artifact:5334:798722870db998bba1b77777cb9cd7e1dc1e1ae81430e9678cdaa1eccf6f1409":"798722870db998bba1b77777cb9cd7e1dc1e1ae81430e9678cdaa1eccf6f1409","artifact:5334:8a3c8591bfaad47276c010368c32d740a9c1da0abd77d7927e3914f217955115":"8a3c8591bfaad47276c010368c32d740a9c1da0abd77d7927e3914f217955115","artifact:5334:95bd9e2fb6ef52625249644a6e9462629258829a1dec7f260adb0c6d18c6e021":"95bd9e2fb6ef52625249644a6e9462629258829a1dec7f260adb0c6d18c6e021","artifact:5334:a0b5643207935b2e22c6824a7146b911cd51a428d755bbe2d01d26545350fdf3":"a0b5643207935b2e22c6824a7146b911cd51a428d755bbe2d01d26545350fdf3","artifact:5334:ae6fb461fb8a30c58885868a04159f4fe9eb6562da99dbbdda05d0b8d8cb1754":"ae6fb461fb8a30c58885868a04159f4fe9eb6562da99dbbdda05d0b8d8cb1754","artifact:5334:b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8":"b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8","artifact:5334:cbfa74bd519b5c387fb706778955ec5c5d1c0065bdd7d606a8a1bea496f1399d":"cbfa74bd519b5c387fb706778955ec5c5d1c0065bdd7d606a8a1bea496f1399d","artifact:5334:ccf9cbfe5e65bf283b9fe4c00b3ad693c727d4b335d05dabdd23e9c7b6fbb643":"ccf9cbfe5e65bf283b9fe4c00b3ad693c727d4b335d05dabdd23e9c7b6fbb643","artifact:5334:e5e12990a47707fb53a2d3557ac548b9f7be0a6e8891e33136a56cca1fada713":"e5e12990a47707fb53a2d3557ac548b9f7be0a6e8891e33136a56cca1fada713","artifact:5334:fb851e31bc193c69a7d4af829e21ee06d16487e53ac376f2d4becdb0a1d0ae12":"fb851e31bc193c69a7d4af829e21ee06d16487e53ac376f2d4becdb0a1d0ae12"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":5334,"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 #5334: 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\":5334,\"report_sha256\":\"b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:5334\":\"288884bcda2fcc8157eaca39ba07b9ee7ff75fa6d3336c8271f90e68d169d4fd\",\"review:5334:1:claude-opus-5-5\":\"d9de185a9554b9407968443d19ff181390d647cfd85e4cf658ec52169f3da360\",\"artifact:5334:2649d91b2a9dd627c6dcf1a95504cd34f99a10c6388fd2e718461a21bcbd48c9\":\"2649d91b2a9dd627c6dcf1a95504cd34f99a10c6388fd2e718461a21bcbd48c9\",\"artifact:5334:5096782dc252867a5142ae2c89153ad4d22fa6fdcbcebcf743f226d57017132c\":\"5096782dc252867a5142ae2c89153ad4d22fa6fdcbcebcf743f226d57017132c\",\"artifact:5334:529f2c16e0a8d76800ccfb579b84822b7380d0e466df059875b12bdcc001a4d4\":\"529f2c16e0a8d76800ccfb579b84822b7380d0e466df059875b12bdcc001a4d4\",\"artifact:5334:60a582069bad50af92a625628396357218babd484e94e98d1762bfd85cb86935\":\"60a582069bad50af92a625628396357218babd484e94e98d1762bfd85cb86935\",\"artifact:5334:709b07a1f408210b6c353f6064ae2f6817b236f94d7d22b776215f8d0db9d231\":\"709b07a1f408210b6c353f6064ae2f6817b236f94d7d22b776215f8d0db9d231\",\"artifact:5334:798722870db998bba1b77777cb9cd7e1dc1e1ae81430e9678cdaa1eccf6f1409\":\"798722870db998bba1b77777cb9cd7e1dc1e1ae81430e9678cdaa1eccf6f1409\",\"artifact:5334:8a3c8591bfaad47276c010368c32d740a9c1da0abd77d7927e3914f217955115\":\"8a3c8591bfaad47276c010368c32d740a9c1da0abd77d7927e3914f217955115\",\"artifact:5334:95bd9e2fb6ef52625249644a6e9462629258829a1dec7f260adb0c6d18c6e021\":\"95bd9e2fb6ef52625249644a6e9462629258829a1dec7f260adb0c6d18c6e021\",\"artifact:5334:a0b5643207935b2e22c6824a7146b911cd51a428d755bbe2d01d26545350fdf3\":\"a0b5643207935b2e22c6824a7146b911cd51a428d755bbe2d01d26545350fdf3\",\"artifact:5334:ae6fb461fb8a30c58885868a04159f4fe9eb6562da99dbbdda05d0b8d8cb1754\":\"ae6fb461fb8a30c58885868a04159f4fe9eb6562da99dbbdda05d0b8d8cb1754\",\"artifact:5334:b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8\":\"b574cb978c44704518b175a33400a3411a22e3c5032ddcb265d7d9f627496aa8\",\"artifact:5334:cbfa74bd519b5c387fb706778955ec5c5d1c0065bdd7d606a8a1bea496f1399d\":\"cbfa74bd519b5c387fb706778955ec5c5d1c0065bdd7d606a8a1bea496f1399d\",\"artifact:5334:ccf9cbfe5e65bf283b9fe4c00b3ad693c727d4b335d05dabdd23e9c7b6fbb643\":\"ccf9cbfe5e65bf283b9fe4c00b3ad693c727d4b335d05dabdd23e9c7b6fbb643\",\"artifact:5334:e5e12990a47707fb53a2d3557ac548b9f7be0a6e8891e33136a56cca1fada713\":\"e5e12990a47707fb53a2d3557ac548b9f7be0a6e8891e33136a56cca1fada713\",\"artifact:5334:fb851e31bc193c69a7d4af829e21ee06d16487e53ac376f2d4becdb0a1d0ae12\":\"fb851e31bc193c69a7d4af829e21ee06d16487e53ac376f2d4becdb0a1d0ae12\"},\"sha256\":\"9b77d944c034e5f0dbbe1381be5eb8f8fbda6786b3e784d40365c6eb12d44f58\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: []\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:5334,input_sha256:\"2c68fa59492bae38c9c33dfca7653ab09ba7209dd72aa8f609dd75e691b3a6bb\",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/6737/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"71d3446ac5cc9cef0e808088f438697818a9f85c46b23792c28b851fd777b624","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}