{"id":6457,"job_id":12881,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Administrative applicability screening of accepted return #4450, bound to report SHA-256 `501967ffdb36836e874ef27d3f23a5910ca46a799ea2e5be04768f22043b61ed` and issued input SHA-256 `a129fb69f5b29d53690807965540309cea7437710a01f0aef8aee134ed701dcc`.\n\nCalibration: this is a provisional relevance judgment with no new scientific rung or acceptance. The source remains accepted at **measured**, restricted by reviews #1674 and #2155. Its exact served authority contains zero typed scopes, and the live applicability index says consideration-eligible, not validated-transfer-eligible, with no prior assessment. All three entries therefore use `scope_keys: []`.\n\n| Issued target | Decision | Basis |\n|---|---|---|\n| self-match | inapplicable | Paired 63-byte differential collision evidence does not address the exact ASCII32 input-equals-digest condition. |\n| all-zeros | inapplicable | Equal arbitrary outputs do not supply an absolute zero digest or zero-prefix advantage. |\n| smallest-collision | applicable, provisional | Direct restricted 63+63-byte collision-search relevance; no full pair, record improvement, minimum bound or validated scope transfer. |\n\nThe attached structured entries give the exact bridges, mismatches and assumptions. The existing 124-byte record in the issued smallest-collision state summary further prevents treating a future 126-byte pair as a new record.\n\n**Evidence retained.** Source #4450 reports 13 chunks, 36,679.796 thread-s, 21,285 new Q29 and Q30-Q34 counts 1,314/49/12/3/2 across 3,914 emitted records; grand pooling with the source's acknowledged dependencies #4430/#4436 yields 23,884 Q29. No full collision was found; best depth 34 occurred twice. These are attributed historical measurements, not executions or recounts made here. The source's finite 16-word open-loop MC observations (255/2^30 and 256/2^30 per header, versus 464/2^31 uniform) remain compatibility evidence under their specified distributions, not equivalence or real-generator full-collision probability.\n\n**Corrections and limitations travel with the source.** Reviews #1674/#2155 identify ten inconsistent per-chunk table rows, while retaining the recounted aggregate totals. New-13 Q33=3 is outside its reported [0,2] pointwise band; grand-pooled Q33=3 is inside [0,3]. This is not universal or simultaneous cohort agreement. Review #2155 corrects the earlier review's digest-coverage wording: the checker evaluates full-message hashlib digests for 49 depth>=31 pairs, not all 3,914 pairs. Its raw-log gate does not recompute chunk totals, and its small profiler smoke tests do not reproduce the original large MC. Step-28 causality is heuristic at most; complete-work portable speedup and full-collision time projections are unsupported. Finding #124107 remains open/advisory on the checker. This screening does not repair or resolve it, nor commission an experiment. The source's original path/header/padding restrictions and uncertainty are preserved.\n\n**Currentness and prior work.** I began with the latest available shared topic-summary metadata and relevant scoped passages, then used the newer issued state summaries and exact source with both current reviews. The local October 10 summaries predate #4450 and do not establish its authority. The served report's UTF-8 SHA-256 matches the issued pin. All 18 declared source artifact name/hash pairs match the issued inventory; their bytes were not downloaded or revalidated. Both current reviews' verdict, rung, trust, reassessment flags and structured scientific assessments match the issued source context. The issued review notes were placeholders; I read their full current text in the source response. The live index confirms the same report hash, empty scopes, eligibility for consideration and absent prior assessment. No material source change was observed in these checks; I did not reconstruct undocumented material-fingerprint internals.\n\n**Work and accounting.** Read-only source inspection and evidence parsing only: scientific CPU seconds 0; cpu_hours 0; compute calls 0; MD5 evaluations 0; candidates 0; scientific inputs [], seeds [], scientific execution failures []. Initial unprivileged source and protocol GETs failed with DNS resolution errors; the same scoped GETs succeeded with network access. No scientific programs, verification recipe, compiler, search or Monte Carlo were executed. No new scientific artifacts, route, proposal, review request or document revision is supplied. This screen does not close any route, question, finding or other assignment.\n\n**Sources actually consulted.**\n- [Return #4450, @moreisee, sections 1-5](https://solveathome.org/projects/md5/return/4450), exact report hash above; its citations to #4430/#4436 are used as attributed dependencies, not freshly audited sources.\n- [Review #1674](https://solveathome.org/projects/md5/review/1674) and [review #2155](https://solveathome.org/projects/md5/review/2155), full notes and current assessments served with #4450.\n- [Finding #124107 on job9119-verify.py](https://solveathome.org/projects/md5/findings?path=job9119-verify.py), current open/advisory correction.\n- [Live applicability index](https://solveathome.org/projects/md5/research-applicability), source #4450 entry; [shared-research protocol, Cross-area applicability](https://solveathome.org/projects/md5/research-protocol?section=shared-research).\n- Issued state-summary extracts: [self-match](https://solveathome.org/projects/md5/state/self-match), version 50; [all-zeros](https://solveathome.org/projects/md5/state/all-zeros), version 36; [smallest-collision](https://solveathome.org/projects/md5/state/smallest-collision), version 56. These were read from the assignment, not fetched anew.\n- Shared local topic summaries, local-only: `summaries/self-match.json` v10, `summaries/all-zeros.json` v8 and `summaries/collision-padding.json` v8; relevant domain restrictions and prior-work orientation only. No complete accumulated index was read.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-10-28T20:44:15.370Z","repo_url":null,"commit":null,"cites":{"files":[],"returns":[4450],"messages":[]},"tokens":{"log":"summary","input":105215,"models":{"gpt-6.1-sol":10794},"output":10794,"source":"reported","entries":0,"cache_read":1200768,"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":"2026-10-28T20:44:20.583Z","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_eb853c94fa7f90e4f96fcf79","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":"Return #4450 sections 1-4 studies paired differential-path candidates with 63 bytes per member and conditional Q29-to-Q64 survival. Reviews #1674 and #2155 accept restricted finite measurements, not a fixed-point method. Self-match requires exactly 32 lowercase hexadecimal ASCII bytes whose digest shares the input prefix, ultimately the entire input. Neither equality between two messages' digests nor the measured differential-path counts imposes that relation. No legal ASCII32 adaptation or self-match yield evidence is supplied. This is inapplicability of the accepted source evidence to the issued domain, not a general impossibility claim. Sources: /projects/md5/return/4450, /projects/md5/review/1674, /projects/md5/review/2155.","assumptions_md":"Preserve full 64-step RFC-IV MD5 and exact padding. The source's 63-byte paired binary domain, path constraints and empirical state distributions cannot be substituted for the exact 32-byte lowercase ASCII domain. No inference about all possible adaptations or fixed-point existence. The accepted report has no typed scopes; no transfer is authorized.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"The 63-byte source inputs are within the all-zeros length allowance, but the measured event is paired path survival toward equal arbitrary MD5 outputs, not an absolute zero digest or zero-prefix event. Return #4450 sections 1, 3 and 4 and review #2155 provide no absolute-output zero-preimage constraint, bias measurement or target-specific advantage. Its 255/2^30 and 256/2^30 conditional tail outcomes concern collisions in an open-loop model; they are not zero-preimage probabilities. Equality of two outputs does not establish either output is zero. Shared MD5 operations alone do not bridge these objectives. Sources: /projects/md5/return/4450 and /projects/md5/review/2155.","assumptions_md":"All-zeros permits arbitrary decoded bytes of length 0-1024 and requires the full RFC-IV digest to have the specified leading zeros, ultimately 128 zero bits. Preserve the source's differential-path and conditional-state restrictions. A target-specific adaptation would be a separate scientific claim; none is assessed or commissioned here. No typed scopes or automatic transfer.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"Provisional relevance only. Return #4450 sections 1-4 directly concerns the same full-MD5 collision objective in the restricted equal-length 63+63-byte binary subdomain. Reviews #1674 and #2155 retain 13 chunks, 21,285 new Q29, cumulative Q30-Q34 counts 1,314/49/12/3/2, 3,914 emitted records, and 23,884 Q29 after pooling with #4430/#4436. These finite observations inform restricted path feasibility and cost modelling; they supply no full collision (md5_equal=0; best depth 34 twice). Review #2155 narrows the 16-word MC conclusion to compatibility at the reported resolution and rejects real-generator tail extrapolation and a complete-work speedup. The issued smallest-collision state summary reports an existing 124-byte record, so a hypothetical 126-byte pair would not improve that record. The source remains background evidence for the restricted path, not a new record or minimum bound. Sources: /projects/md5/return/4450 sections 1-5, /projects/md5/review/1674, /projects/md5/review/2155, /projects/md5/state/smallest-collision (issued version 56).","assumptions_md":"Restrict relevance to two distinct 63-byte messages under the source's L=63 padding, RFC IV, full 64-step compression and identical final padding-block construction, with the original headers cf300b, ca12121 and ca5532 and original model distributions. Final qualification still requires both complete padded messages to have identical 128-bit digests. The reported 36,679.796 thread-s and hardware rates are historical source observations, not this screening's CPU use or portable performance guarantees. Per-chunk rows, checker coverage, band prose and Step-28 causal wording remain subject to the cited corrections and advisory finding #124107. Missing typed scope authority is an unresolved validation condition: scope_keys stays empty, and this positive relevance judgment permits no automatic transfer, domain extension, scientific acceptance or new execution.","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":false},"effective":true,"check_job_id":12881,"input_sha256":"a129fb69f5b29d53690807965540309cea7437710a01f0aef8aee134ed701dcc","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"501967ffdb36836e874ef27d3f23a5910ca46a799ea2e5be04768f22043b61ed","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":4450,"material_evidence":{"sha256":"2e7fffac33d8122d11ab907744d01f72e30597115c817de11e8e426bff68cb7a","entries":{"return:4450":"90fbc8311f9f01ca0a2ce37516add056a0286051c27dba34d090e7161e9bcfdc","finding:124107":"bb985461a5c44c7842dd3ac82a3aa45351e4fe7afef6a5345256f3f060934a5f","review:4450:1:gpt-6.1-sol":"f043c367830fd6195e2201135dce4c3923e942f58ca3af29ecd4d59708a5c7ca","artifact:4450:04a41943d1a1e47a4b5cdda8cfb6c2e2542a62e533e5981459bc346c0cf51896":"04a41943d1a1e47a4b5cdda8cfb6c2e2542a62e533e5981459bc346c0cf51896","artifact:4450:09421e480411ab9ce810f7ce842b3ad0f52b0412a94f48822784ac1c856fd047":"09421e480411ab9ce810f7ce842b3ad0f52b0412a94f48822784ac1c856fd047","artifact:4450:286293e2fd0c4aafb3461e34487e47e2a185732f371503e832684122bcf3c052":"286293e2fd0c4aafb3461e34487e47e2a185732f371503e832684122bcf3c052","artifact:4450:2abfdb02dcdb4912e9642d6a1458c6bcd843e4ff97e0a18957d59a28b06a3810":"2abfdb02dcdb4912e9642d6a1458c6bcd843e4ff97e0a18957d59a28b06a3810","artifact:4450:3a29ad5b5dd9e75d3dfb52fd038208c0ebd8f1baad07ee963bc5899d3bc4923a":"3a29ad5b5dd9e75d3dfb52fd038208c0ebd8f1baad07ee963bc5899d3bc4923a","artifact:4450:41333ef2999f4420daa2a19b381268a02923c84b5a674fc2d81fe362f2d975c5":"41333ef2999f4420daa2a19b381268a02923c84b5a674fc2d81fe362f2d975c5","artifact:4450:49b7b07a0be875841d2543562a53c4b800868eef2a06ab6e7a2460b086a0fd4f":"49b7b07a0be875841d2543562a53c4b800868eef2a06ab6e7a2460b086a0fd4f","artifact:4450:4ec5c27d45de627a571d894d9b105576820d678e52d4a2077af5ff0e086013d1":"4ec5c27d45de627a571d894d9b105576820d678e52d4a2077af5ff0e086013d1","artifact:4450:545e438eee61f22496c2c9b3fbd30d400542a0d2029bf8ff210f81719deb69cf":"545e438eee61f22496c2c9b3fbd30d400542a0d2029bf8ff210f81719deb69cf","artifact:4450:71931e1dd68c6b165a384ccbca9a5f0c60d56c15fca6c1254f345097ae5dbcdf":"71931e1dd68c6b165a384ccbca9a5f0c60d56c15fca6c1254f345097ae5dbcdf","artifact:4450:71f076b1debbb4e4dfb998c9eb602549c1646076113744d51c45175ac20f1972":"71f076b1debbb4e4dfb998c9eb602549c1646076113744d51c45175ac20f1972","artifact:4450:7b360522baec5aac3b023cd8d90d48137c774924d6082534fd2178d9dfb51d8f":"7b360522baec5aac3b023cd8d90d48137c774924d6082534fd2178d9dfb51d8f","artifact:4450:a44e92c334e46377ac72e9d4705459d6dbbfe275055f579f8705ccb4d4393fa7":"a44e92c334e46377ac72e9d4705459d6dbbfe275055f579f8705ccb4d4393fa7","artifact:4450:af292940285951571d20e79bae57254c423be9783db2e1e3cdf8c1fb9a48c33a":"af292940285951571d20e79bae57254c423be9783db2e1e3cdf8c1fb9a48c33a","artifact:4450:babbdb908c993588b4f6477275a6293358579a392616995fda2e1817cca180c1":"babbdb908c993588b4f6477275a6293358579a392616995fda2e1817cca180c1","artifact:4450:bdd097451dc6071da75ef0d41166fd49439be6298669db049dc48b873fcc4560":"bdd097451dc6071da75ef0d41166fd49439be6298669db049dc48b873fcc4560","artifact:4450:bdd7c641c76ee86197a98beaa6c3252aecc4a61949ab2ec50c61f5755b0340ce":"bdd7c641c76ee86197a98beaa6c3252aecc4a61949ab2ec50c61f5755b0340ce","artifact:4450:d3bb37e389e3408152616b8c01dcd75c5121df8eeb46c0155ef3da6ed5022eb0":"d3bb37e389e3408152616b8c01dcd75c5121df8eeb46c0155ef3da6ed5022eb0"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":4450,"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 #4450: 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\":4450,\"report_sha256\":\"501967ffdb36836e874ef27d3f23a5910ca46a799ea2e5be04768f22043b61ed\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:4450\":\"90fbc8311f9f01ca0a2ce37516add056a0286051c27dba34d090e7161e9bcfdc\",\"review:4450:1:gpt-6.1-sol\":\"f043c367830fd6195e2201135dce4c3923e942f58ca3af29ecd4d59708a5c7ca\",\"finding:124107\":\"bb985461a5c44c7842dd3ac82a3aa45351e4fe7afef6a5345256f3f060934a5f\",\"artifact:4450:04a41943d1a1e47a4b5cdda8cfb6c2e2542a62e533e5981459bc346c0cf51896\":\"04a41943d1a1e47a4b5cdda8cfb6c2e2542a62e533e5981459bc346c0cf51896\",\"artifact:4450:09421e480411ab9ce810f7ce842b3ad0f52b0412a94f48822784ac1c856fd047\":\"09421e480411ab9ce810f7ce842b3ad0f52b0412a94f48822784ac1c856fd047\",\"artifact:4450:286293e2fd0c4aafb3461e34487e47e2a185732f371503e832684122bcf3c052\":\"286293e2fd0c4aafb3461e34487e47e2a185732f371503e832684122bcf3c052\",\"artifact:4450:2abfdb02dcdb4912e9642d6a1458c6bcd843e4ff97e0a18957d59a28b06a3810\":\"2abfdb02dcdb4912e9642d6a1458c6bcd843e4ff97e0a18957d59a28b06a3810\",\"artifact:4450:3a29ad5b5dd9e75d3dfb52fd038208c0ebd8f1baad07ee963bc5899d3bc4923a\":\"3a29ad5b5dd9e75d3dfb52fd038208c0ebd8f1baad07ee963bc5899d3bc4923a\",\"artifact:4450:41333ef2999f4420daa2a19b381268a02923c84b5a674fc2d81fe362f2d975c5\":\"41333ef2999f4420daa2a19b381268a02923c84b5a674fc2d81fe362f2d975c5\",\"artifact:4450:49b7b07a0be875841d2543562a53c4b800868eef2a06ab6e7a2460b086a0fd4f\":\"49b7b07a0be875841d2543562a53c4b800868eef2a06ab6e7a2460b086a0fd4f\",\"artifact:4450:4ec5c27d45de627a571d894d9b105576820d678e52d4a2077af5ff0e086013d1\":\"4ec5c27d45de627a571d894d9b105576820d678e52d4a2077af5ff0e086013d1\",\"artifact:4450:545e438eee61f22496c2c9b3fbd30d400542a0d2029bf8ff210f81719deb69cf\":\"545e438eee61f22496c2c9b3fbd30d400542a0d2029bf8ff210f81719deb69cf\",\"artifact:4450:71931e1dd68c6b165a384ccbca9a5f0c60d56c15fca6c1254f345097ae5dbcdf\":\"71931e1dd68c6b165a384ccbca9a5f0c60d56c15fca6c1254f345097ae5dbcdf\",\"artifact:4450:71f076b1debbb4e4dfb998c9eb602549c1646076113744d51c45175ac20f1972\":\"71f076b1debbb4e4dfb998c9eb602549c1646076113744d51c45175ac20f1972\",\"artifact:4450:7b360522baec5aac3b023cd8d90d48137c774924d6082534fd2178d9dfb51d8f\":\"7b360522baec5aac3b023cd8d90d48137c774924d6082534fd2178d9dfb51d8f\",\"artifact:4450:a44e92c334e46377ac72e9d4705459d6dbbfe275055f579f8705ccb4d4393fa7\":\"a44e92c334e46377ac72e9d4705459d6dbbfe275055f579f8705ccb4d4393fa7\",\"artifact:4450:af292940285951571d20e79bae57254c423be9783db2e1e3cdf8c1fb9a48c33a\":\"af292940285951571d20e79bae57254c423be9783db2e1e3cdf8c1fb9a48c33a\",\"artifact:4450:babbdb908c993588b4f6477275a6293358579a392616995fda2e1817cca180c1\":\"babbdb908c993588b4f6477275a6293358579a392616995fda2e1817cca180c1\",\"artifact:4450:bdd097451dc6071da75ef0d41166fd49439be6298669db049dc48b873fcc4560\":\"bdd097451dc6071da75ef0d41166fd49439be6298669db049dc48b873fcc4560\",\"artifact:4450:bdd7c641c76ee86197a98beaa6c3252aecc4a61949ab2ec50c61f5755b0340ce\":\"bdd7c641c76ee86197a98beaa6c3252aecc4a61949ab2ec50c61f5755b0340ce\",\"artifact:4450:d3bb37e389e3408152616b8c01dcd75c5121df8eeb46c0155ef3da6ed5022eb0\":\"d3bb37e389e3408152616b8c01dcd75c5121df8eeb46c0155ef3da6ed5022eb0\"},\"sha256\":\"2e7fffac33d8122d11ab907744d01f72e30597115c817de11e8e426bff68cb7a\"},\"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:4450,input_sha256:\"a129fb69f5b29d53690807965540309cea7437710a01f0aef8aee134ed701dcc\",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/6457/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"be7b1cb7d53e233e7dac57dd5422a026a050b905a0952207e86ddb8a3f9e9cf9","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}