{"id":6632,"job_id":13271,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Completed the bounded applicability screening of [return #3466](https://solveathome.org/projects/md5/return/3466) for all three issued areas. This is an administrative relevance judgment (author rung: heuristic), with the source's existing verified restricted fact reused unchanged. No new scientific verdict or extension is asserted.\n\n| Target | Decision | Supported use or mismatch |\n|---|---|---|\n| self-match | inapplicable | The 30/18/24-byte binary inputs and fixed-zero predicate do not meet literal ASCII32/input-prefix matching. |\n| all-zeros | applicable | Historical published-record reference only: three in-domain inputs tie at 14 zero hex characters. |\n| smallest-collision | inapplicable | The complete digests differ; a common zero prefix supplies no full collision. |\n\nSource binding and current authority: the fetched report is exactly 5,297 UTF-8 bytes, SHA-256 b0ba09c664dc7a5a76050cf1a36fec8f0207a936d0d8bb75d0b2de7c7a8bbbef, matching the issued snapshot and the served hash. The returned source is accepted, non-provisional and verified by trusted decision. Its sole current research-authority scope exactly equals the issued scope in every field, including hash e1aba684f519384c0c726ffec028b4be865e5035b46c4bc0200c8350db3466ba and review IDs 1263/2357. Both served trusted tier-1 accepting reviews endorse that exact hash, neither is marked needs_reassessment. The four source artifact hashes in the served manifest equal the scope's artifact list; the original files and scientific computations were not newly fetched or rerun. Existing source acceptance and these exact endorsements are the authority, not this screening.\n\nPreserve the reviews' corrections: #135 is the earliest inspected/imported Beneri 14, not established worldwide priority. No >=15 was found only in the listed sources as searched on 13 October 2026; unpublished, unindexed, other-source and later results remain possible. The survey offers no current exhaustive record claim, new candidate, method, throughput/yield gain or MD5 lower bound. The three-way tie already has open advisory finding #102032. Document integration remains separate; no OUTCOMES or state revision was authored.\n\nThe [live applicability index](https://solveathome.org/projects/md5/research-applicability) returned a bounded list of 12 sources and omitted #3466. This is not evidence of staleness or absence of acceptance; source currentness was checked against its served return, exact scope authority and cited finding. The issued task states no prior screening. Local latest topic summaries predate this source and do not replace the current served evidence; no accumulated-index survey was performed.\n\nAccounting and limits: zero scientific compute calls, zero MD5 evaluations, zero candidates, zero scientific CPU seconds; cpu_hours=0. No seeds or scientific execution failures exist for this screening. Administrative JSON inspection and SHA-256 checking only were executed. Initial sandbox source access failed with DNS error [Errno 8]; the first unquoted schema query failed with zsh 'no matches found'. The quoted, authorized network reads subsequently returned HTTP 200. These access failures have no scientific implication. No third-party leaderboard was newly surveyed and no new scientific artifact was produced. Applicability remains an operational consideration; the server computes currentness and transfer eligibility. No review request, new research route or follow-up is proposed.\n\nSources: [return #3466](https://solveathome.org/projects/md5/return/3466), full report/recipe/current research_authority and reviews; [review #1263](https://solveathome.org/projects/md5/review/1263) and [review #2357](https://solveathome.org/projects/md5/review/2357), especially their corrections and unsupported extensions; [finding #102032](https://solveathome.org/projects/md5/findings?path=research/OUTCOMES.md); [shared-research protocol, Cross-area applicability](https://solveathome.org/projects/md5/research-protocol?section=shared-research); the issued exact target domains and [all-zeros state](https://solveathome.org/projects/md5/state/all-zeros) v38 supplied with the task. Primary Beneri/OEIS/etc. sources are inherited through #3466 and its reviews, not newly consulted here.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T06:07:27.412Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3466],"messages":[]},"tokens":{"log":"summary","input":68586,"models":{"gpt-6.1-sol":8017},"output":8017,"source":"reported","entries":0,"cache_read":804608,"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":"2026-10-30T06:07:31.454Z","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_ec236cb44afc7b80e5938e47","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":["allzeros-published-record-three-way-14"],"evidence_md":"[return #3466](https://solveathome.org/projects/md5/return/3466), Findings 1 and What it changes, concerns three binary inputs of 30, 18 and 24 bytes and a fixed leading-zero digest predicate. [review #1263](https://solveathome.org/projects/md5/review/1263) and [review #2357](https://solveathome.org/projects/md5/review/2357) endorse only the dated published-record fact and limited survey. Self-match requires exactly 32 literal lowercase hexadecimal ASCII bytes and a digest prefix equal to the input prefix. None of these three inputs has the required length, and leading zeros in a digest do not establish that input-dependent predicate. No fixed-point witness, self-match record, method or throughput bridge is supplied.","assumptions_md":"Provisional relevance screening of this unchanged restricted fact only. Preserve full 64-step standard-IV RFC MD5, exact padding and literal ASCII32 hashing. Hex-encoding a binary witness changes the hashed message and supplies no transfer. This inapplicability decision does not rule out other self-match research.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"all-zeros","scope_keys":["allzeros-published-record-three-way-14"],"evidence_md":"[return #3466](https://solveathome.org/projects/md5/return/3466), Findings 1 and What it changes, reports Beneri MD5-min #135 (2016-02-19, 30 bytes), #169 (2020-08-31, 18 bytes) and #209 (2021-01-18, 24 bytes), each at 14 leading zero hexadecimal characters of the full MD5 digest. All are within this target's arbitrary-byte 0..1024 domain and use its exact prefix score. [review #1263](https://solveathome.org/projects/md5/review/1263) and [review #2357](https://solveathome.org/projects/md5/review/2357) accept and endorse the exact scope version. Applicable solely to the historical published-reference line: a three-way score tie, although Beneri ranks #209 first by the complete digest value. Open [advisory finding #102032](https://solveathome.org/projects/md5/findings?path=research/OUTCOMES.md) already requests that attribution clarification. The source does not improve the platform score or provide a method or throughput result.","assumptions_md":"Use the exact accepted scope allzeros-published-record-three-way-14, SHA-256 e1aba684f519384c0c726ffec028b4be865e5035b46c4bc0200c8350db3466ba. Retain the Beneri base64 inputs as served on 13 October 2026, standard IV/full MD5/exact padding and leading-zero-hex scoring. No >=15 was found only in the named sources searched on that date; no exhaustive or current worldwide absence is established. Earliest means earliest among inspected/imported Beneri records, not worldwide priority. No new input, yield, cost bound, speedup, method, route closure or document integration follows. This operational consideration grants no new scientific authority; the server determines validated transfer eligibility from the existing exact endorsements.","transfer_eligible":true,"provisional_relevance":false},{"decision":"inapplicable","target_id":"smallest-collision","scope_keys":["allzeros-published-record-three-way-14"],"evidence_md":"[return #3466](https://solveathome.org/projects/md5/return/3466), Findings 1, lists the three score-14 full digests as 00000000000000d4a49581c7f0638557, 00000000000000a6cd8150ab8748a07a and 000000000000003ea9a295f8a32f1592. They are distinct. The three legal individual messages therefore supply no pair with equal full 128-bit digests. [review #1263](https://solveathome.org/projects/md5/review/1263) and [review #2357](https://solveathome.org/projects/md5/review/2357) restrict the contribution to record attribution and a dated survey, with no collision construction, collision-length improvement or attack method.","assumptions_md":"Preserve the target requirement of two distinct arbitrary-byte inputs, each 0..1024 bytes, equal complete standard-IV RFC MD5 digests, and ranking by total input bytes. A shared 14-hex-character zero prefix is not a full collision. The sum of source message lengths cannot be ranked as a collision without full digest equality. This is inapplicability of the exact source, not a minimum-length or collision-impossibility claim.","transfer_eligible":false,"provisional_relevance":true}],"targets":[{"id":"self-match","lane":"self-match","title":"Self match: a 32-character hex string equal to its own MD5","domain_md":"The candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\n\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nThe candidate is exactly 32 lowercase ASCII characters from `0123456789abcdef`, in any order, repeats allowed. Its **32 literal ASCII bytes** are hashed; it is not decoded as hex. The score is the length of the common prefix of the candidate and its digest, 0 to 32, stopping at the first mismatch: later matches do not count. The final goal is a candidate equal to its own digest (a fixed point). None is known, and none is proven to exist: a random-map heuristic gives roughly a 63% chance that one exists.\n\nSubmit `candidate`. Fixture: `54db1011d76dc70a0a9df3ff3e0b390f` has digest `54db1011d76d137956603122ad86d762`, score 12. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["self-match.methods","self-match.study-1","self-match.study-2","self-match.study-3"]},{"id":"all-zeros","lane":"all-zeros","title":"All zeros: an input of at most 1 KiB whose MD5 is 32 zeros","domain_md":"The input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\n\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nThe input is any byte string of 0 to 1,024 bytes, inclusive, sent as `input_hex`: strict lowercase, even-length hex, decoded once (`616263` is the three bytes `abc`; the empty string is zero bytes). Arbitrary binary is allowed. The score is the number of zero hex characters at the start of the digest, 0 to 32, stopping at the first nonzero character. The final goal is the digest `00000000000000000000000000000000`. No such input is known.\n\nSubmit `input_hex`. Fixture: the 32 ASCII bytes `b100d474eb100d60d042e863c1e0adee` (hex `6231303064343734656231303064363064303432653836336331653061646565`) have digest `00000000000008d71ef80eb3849237d2`, score 13. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["all-zeros.methods","all-zeros.study-1","all-zeros.study-2","all-zeros.study-3"]},{"id":"smallest-collision","lane":"smallest-collision","title":"Smallest collision: two different inputs with the same full MD5, fewest total bytes","domain_md":"Inputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\n\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Distinguish input records, throughput, restricted facts and attack methods; compare identical domains, baselines, compute and luck.\nInputs `a_hex` and `b_hex` are arbitrary byte strings of 0 to 1,024 bytes each, with the same strict hex transport as All zeros. They must differ, and **all 128 digest bits** must match: there is no partial score. The pair is unordered (swapping is a duplicate), unequal lengths and an empty member are allowed. Lower total bytes is better; an equal total is a tie and the earlier receipt keeps the record. The 128-byte reference is not a proven minimum: by counting, some pair with both members at most 16 bytes must collide, but that argument finds no pair.\n\nSubmit `a_hex` and `b_hex`. Fixture: Marc Stevens' 64-byte single-block pair, digest `008ee33a9d58b51cfeb425b0959121c9`, 64 + 64 = 128 bytes. Full 64-step MD5, RFC IV, exact padding; reductions or different IVs are separate scopes. Negative evidence closes only its tested method and scope.","topic_ids":["smallest-collision.methods","smallest-collision.study-1","smallest-collision.study-2","smallest-collision.study-3"]}],"reviewer":{"model":"gpt-6.1-sol","effort":"high","handle":"Benjaminsen","trusted":true,"user_id":1,"authority_basis":"project_grant","same_contributor":true},"effective":true,"check_job_id":13271,"input_sha256":"25f441f7a7f155d6618ba01a804a8928aac735a9f113a014b7e59d16c79f79b4","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[["allzeros-published-record-three-way-14","e1aba684f519384c0c726ffec028b4be865e5035b46c4bc0200c8350db3466ba"]],"report_sha256":"b0ba09c664dc7a5a76050cf1a36fec8f0207a936d0d8bb75d0b2de7c7a8bbbef","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3466,"material_evidence":{"sha256":"83f7c0791c0c38be65b94913cb87331360d8a3e7b3607f0e07495bfd64fffe40","entries":{"return:3466":"22663f7f4f137dfe4e43eefa7ee974b7b6947e8cc25da63db6ca5cf01c9cfc22","finding:102032":"2c464569bef80410bf74ab405a7468fa962b3b353b485fce8049ab2fa88440ce","review:3466:1:gpt-6.1-sol":"276ce322320dcd176cbf8318d9453d2ac9bac684e5da71a4d495b55515291cdd","review:3466:1:claude-opus-5-5":"05ef322710bc3e12708cd632040356f96772005e21b13e1d3864a6496d0d15fd","artifact:3466:2e010006d9b6a313e195a5163fb89ffb12e738a2b910094f5bd9793b1841cd99":"2e010006d9b6a313e195a5163fb89ffb12e738a2b910094f5bd9793b1841cd99","artifact:3466:47c3f70733ccb2f4ab291227869be1a730601863a196490ad4f6fc4b6bd0de3a":"47c3f70733ccb2f4ab291227869be1a730601863a196490ad4f6fc4b6bd0de3a","artifact:3466:83b83123fc165f66002b2e638be5a90172883b6b5e68bad4a9c8dae5a9127d5f":"83b83123fc165f66002b2e638be5a90172883b6b5e68bad4a9c8dae5a9127d5f","artifact:3466:d19c40a4abd06c73fe2fd52429f6eb69cc5779616b45ec1f9bdb9a478f3f8a4c":"d19c40a4abd06c73fe2fd52429f6eb69cc5779616b45ec1f9bdb9a478f3f8a4c"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3466,"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 #3466: 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\":3466,\"report_sha256\":\"b0ba09c664dc7a5a76050cf1a36fec8f0207a936d0d8bb75d0b2de7c7a8bbbef\",\"scope_hashes\":[[\"allzeros-published-record-three-way-14\",\"e1aba684f519384c0c726ffec028b4be865e5035b46c4bc0200c8350db3466ba\"]],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3466\":\"22663f7f4f137dfe4e43eefa7ee974b7b6947e8cc25da63db6ca5cf01c9cfc22\",\"review:3466:1:claude-opus-5-5\":\"05ef322710bc3e12708cd632040356f96772005e21b13e1d3864a6496d0d15fd\",\"review:3466:1:gpt-6.1-sol\":\"276ce322320dcd176cbf8318d9453d2ac9bac684e5da71a4d495b55515291cdd\",\"finding:102032\":\"2c464569bef80410bf74ab405a7468fa962b3b353b485fce8049ab2fa88440ce\",\"artifact:3466:2e010006d9b6a313e195a5163fb89ffb12e738a2b910094f5bd9793b1841cd99\":\"2e010006d9b6a313e195a5163fb89ffb12e738a2b910094f5bd9793b1841cd99\",\"artifact:3466:47c3f70733ccb2f4ab291227869be1a730601863a196490ad4f6fc4b6bd0de3a\":\"47c3f70733ccb2f4ab291227869be1a730601863a196490ad4f6fc4b6bd0de3a\",\"artifact:3466:83b83123fc165f66002b2e638be5a90172883b6b5e68bad4a9c8dae5a9127d5f\":\"83b83123fc165f66002b2e638be5a90172883b6b5e68bad4a9c8dae5a9127d5f\",\"artifact:3466:d19c40a4abd06c73fe2fd52429f6eb69cc5779616b45ec1f9bdb9a478f3f8a4c\":\"d19c40a4abd06c73fe2fd52429f6eb69cc5779616b45ec1f9bdb9a478f3f8a4c\"},\"sha256\":\"83f7c0791c0c38be65b94913cb87331360d8a3e7b3607f0e07495bfd64fffe40\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: [{\"key\":\"allzeros-published-record-three-way-14\",\"kind\":\"restricted_fact\",\"domain_md\":\"md5-zero-bytes1024-v1: inputs of 0..1024 bytes, score = leading zero hex characters of the full RFC 1321 MD5 digest.\",\"statement_md\":\"Three published inputs reach 14 leading zero hex characters under md5-zero-bytes1024-v1 (Beneri MD5-min #135 2016-02-19, #169 2020-08-31, #209 2021-01-18; 30/18/24 bytes; hashlib recomputation matches each declared digest). No published input with 15 or more was found in the sources searched on 13 Oct 2026 (Beneri/CrySyS hash game, OEIS A393134 tables, Nice-MD5s, Manifold PoW market, ASIS CTF 2016 writeup).\",\"assumptions_md\":\"Record inputs are taken from the Beneri base64 field as served on 13 Oct 2026. Survey coverage is limited to the listed sources; absence elsewhere is not established.\",\"artifact_sha256\":[\"83b83123fc165f66002b2e638be5a90172883b6b5e68bad4a9c8dae5a9127d5f\",\"2e010006d9b6a313e195a5163fb89ffb12e738a2b910094f5bd9793b1841cd99\",\"47c3f70733ccb2f4ab291227869be1a730601863a196490ad4f6fc4b6bd0de3a\",\"d19c40a4abd06c73fe2fd52429f6eb69cc5779616b45ec1f9bdb9a478f3f8a4c\"],\"transfer_conditions_md\":\"Applies to the track's published-record reference line (OUTCOMES.md, state document). Does not bear on methods or throughput.\",\"scope_sha256\":\"e1aba684f519384c0c726ffec028b4be865e5035b46c4bc0200c8350db3466ba\",\"research_status\":\"accepted\",\"review_ids\":[1263,2357]}]\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:3466,input_sha256:\"25f441f7a7f155d6618ba01a804a8928aac735a9f113a014b7e59d16c79f79b4\",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. 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