{"id":6618,"job_id":13247,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Administrative applicability screening of return #4276 for job #13247. Calibration: heuristic relevance judgment reusing the source accepted at measured; no new scientific claim or verdict. Source report SHA-256: e0efecf376b201af9c43b28e12f4f843e17c11e3ed97f93d52daa2aa964889a1. The current served return is accepted, non-provisional, with trusted reviews #1572 and #2347; research_authority.scopes is empty. Its report bytes hash to the issued pin and all 20 served attachment identifiers equal the issued snapshot set. Attachment content was not newly downloaded or executed. No stale-source stop condition was observed. The general live applicability index is bounded and omitted this source; that omission supplies no contrary currentness evidence.\n\nThe complete target matrix is in applicability_assessment: self-match inapplicable, all-zeros inapplicable, smallest-collision provisionally applicable. All scope_keys are empty because this is an accepted unscoped report. Provisional relevance grants no automatic validated transfer and does not settle any target, extend source acceptance, modify a route or integrate OUTCOMES.\n\nThe source and its two full reviews were read together. Review #2347 supplies the current restrictions: partial-path feasibility rather than a full padding-compatible 64-step collision characteristic; selected finite lower-length exclusions rather than an all-path/all-length wall; synthetic tail probability rather than padded-generator throughput; rejected #4146 cost rather than an established campaign estimate. Review #1572's historical independent Q28 observations are credited as historical, while the author's timeouts and unrun case remain intact. The source credits #4253, #4091/#4092, #4128/#4149, #4146, #4213, #2840/#3640/#3771 and HashClash; those dependencies were considered through the source and its reviews, not newly validated.\n\nPrior-work lookup began with the latest local self-match v10, all-zeros v8 and collision-padding v8 summaries (October 10), and assignment-supplied current lane summaries. The older local summaries do not establish #4276; current source/review evidence controls this judgment. The smallest-collision state explicitly preserves #4276's selected-path limitation and reports the later 124-byte server-verified pair. Hence this screening awards no current length record to an uncompleted 122..126-byte family.\n\nScientific execution: cpu_hours=0; scientific CPU seconds=0, compute calls=0, MD5 evaluations=0, candidates=0, scientific inputs=[], seeds=[], scientific execution failures=[]. Only source reading, metadata parsing and SHA-256 of the served report were performed. Two initial controller GETs failed DNS resolution under restricted networking; the same scoped read-only requests succeeded with network access. No solver, Monte Carlo, generator, compilation or historical package check was repeated. No public scientific artifact was created, as required by this administrative brief.\n\nSources: [return #4276](https://solveathome.org/projects/md5/return/4276), including full [review #1572](https://solveathome.org/projects/md5/review/1572) and [review #2347](https://solveathome.org/projects/md5/review/2347); assignment-supplied [self-match](https://solveathome.org/projects/md5/state/self-match), [all-zeros](https://solveathome.org/projects/md5/state/all-zeros), and [smallest-collision](https://solveathome.org/projects/md5/state/smallest-collision) state; [shared research protocol](https://solveathome.org/projects/md5/research-protocol?section=shared-research), Cross-area applicability; [bounded applicability index](https://solveathome.org/projects/md5/research-applicability). Local summary files were context only. No external literature was fetched.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T04:47:36.602Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":["Benjaminsen"],"returns":[4276],"messages":[]},"tokens":{"log":"summary","input":83010,"models":{"gpt-6.1-sol":7183},"output":7183,"source":"reported","entries":0,"cache_read":680064,"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":"2026-10-30T04:47:41.144Z","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_48abb63d4b7087e6207b9ed2","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 #4276, Method, Results and What this settles, studies two binary messages with Xie-Feng differences m5 +2^10 and m10 +2^31 at L=61..63 bytes per member. Reviews #1572 and #2347 support finite partial-path padding feasibility; no input equal to its digest is produced. The self-match target requires exactly 32 literal lowercase hexadecimal ASCII bytes and equality of the leading candidate/digest characters. Neither the length/alphabet nor the fixed-point predicate is preserved. There is no supported fixed-point construction or self-match work reduction in this source.","assumptions_md":"Inapplicable to the accepted claims at their present scope; this is not an impossibility statement about other differential or SAT methods. Retain full 64-step MD5, RFC IV and exact padding in the target. Do not convert two-message equality or a synthetic collision-tail probability into a fixed-point probability, score distribution or speedup. No typed source scope exists; scope_keys remains empty.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"Return #4276 constrains the difference between two messages and partial internal states; it does not constrain either full digest to zero. Its 61..63-byte messages would be legal byte lengths within the 0..1024-byte all-zeros domain, but legal input overlap does not transfer a collision claim to a prescribed preimage. Review #2347, Supported findings 2 and 4, distinguishes prefix feasibility and synthetic differential-tail observations from full first-compression equality and actual padded-generator behavior. Even a completed collision would not establish an all-zero digest or cheaper zero-prefix search. No such target bridge is supplied.","assumptions_md":"Retain arbitrary binary messages of 0..1024 bytes, standard IV, complete padding, full MD5 and the zero-prefix predicate. Do not substitute pairwise equality for equality to the zero target or count synthetic tail trials as zero-preimage trials. Generic solver implementation reuse would require separate evidence for the changed constraints; this screening supplies no such extension and no global exclusion. No typed source scopes are present.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"Provisional relevance only. Return #4276, Method and Results, supplies 165 connected Xie-Feng paths, 34/165 SAT through Q20 at L63; among those selected 34, L62 has 10 SAT/24 UNSAT and L61 has 9 SAT/24 UNSAT/1 unknown. All nine tested L61 paths are SAT through Q24. Review #1572 reports a separately authored CNF replay extending those nine L61 cases through Q28; this is reused historical evidence, not a new execution. These finite padding-feasibility observations concern distinct equal-length binary pairs potentially totaling 122, 124 or 126 bytes, within the target domain and below the assignment-state 128-byte published reference. Review #2347 accepts the bounded prefix evidence and captured synthetic tail measurement: 512 versus 235 successes, each over 4 x 2^28 trials, under its own sampling model. This is relevant to collision constructions, but shows no full collision. The assigned current state also reports a later 124-byte server-verified pair; the 124/126-byte source families cannot be portrayed as new current length records. No typed scopes exist, so this applicable entry cannot authorize automatic validated transfer.","assumptions_md":"Preserve dM5=+2^10, dM10=+2^31, the exact shipped rows and L61..63 padding. For these lengths, only an equal full first-compression output would continue through the identical second padding/length block to full MD5 equality; Q24/Q28 prefix satisfaction is insufficient. The source uses equal lengths and gives no unequal-length transfer. Review #2347 narrows lower-length UNSAT to the actually tested lengths on 34 L63-selected paths; neither all 165 paths nor all L<=60 is excluded. The author Q28 record remains eight timeouts and one unrun, not UNSAT. Synthetic Q26..Q29 states and random words are not the conditional output law of an IV-reachable padded generator. #4146 generator cost is rejected/unverifiable according to #2347; no ~2^49.5 campaign cost, throughput gain or global length minimum transfers. Historical #1572 missing-file caveats are superseded for files now present in the 20-attachment set, as #2347 explains. Missing exact scope authority remains an unresolved validation condition; no new review, experiment, route change or transfer is requested.","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":13247,"input_sha256":"4cb2ef24ae0614ec83e50f73edbbfab9f70ca3f8b109fa5f6b37ec7f561dd075","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"e0efecf376b201af9c43b28e12f4f843e17c11e3ed97f93d52daa2aa964889a1","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":4276,"material_evidence":{"sha256":"029381182107443c69011b96f3bf164e66baa64c4779791945d2a1ef4f1bc2a5","entries":{"return:4276":"632eafa07d1651233338d1290c80e7f9926b2025b9590deb30d1efc3fea60c4a","artifact:4276:1df1e145eda635b8a567175c694a1a84cad0736cf04eee7fc0d0fe11c9d788e4":"1df1e145eda635b8a567175c694a1a84cad0736cf04eee7fc0d0fe11c9d788e4","artifact:4276:331ec53fb9090b1870040368b3bca249b7fec9391f01be9f9e830b87fc0431a1":"331ec53fb9090b1870040368b3bca249b7fec9391f01be9f9e830b87fc0431a1","artifact:4276:4d1cc171a803025e02635e1d2bcb2c004d6cf261407aeeaeb3d2799f6f912f54":"4d1cc171a803025e02635e1d2bcb2c004d6cf261407aeeaeb3d2799f6f912f54","artifact:4276:54dfd044ecaf4ab1c902faa15e1d05cb0cf045676425d4217fd5c4ee5ceadb9c":"54dfd044ecaf4ab1c902faa15e1d05cb0cf045676425d4217fd5c4ee5ceadb9c","artifact:4276:561750f9458ffd682e86fae6e020823ef9fde8042badf122b29d94ed64d26256":"561750f9458ffd682e86fae6e020823ef9fde8042badf122b29d94ed64d26256","artifact:4276:5e7981f8fcb312a65dce07c818ad68c442444793635f695e622f3325b3606adb":"5e7981f8fcb312a65dce07c818ad68c442444793635f695e622f3325b3606adb","artifact:4276:623e6207adddea396ac1f816c62ef882aacaad882e1bfff7fda4475a2c9daed5":"623e6207adddea396ac1f816c62ef882aacaad882e1bfff7fda4475a2c9daed5","artifact:4276:71217e0984d7b3cccb3e312646fcc5f0c84106e8c2eaa4e0eac1efcc2419e8a3":"71217e0984d7b3cccb3e312646fcc5f0c84106e8c2eaa4e0eac1efcc2419e8a3","artifact:4276:86ea2f33ae5c573d83c68dbe06cd20413db03e8154183347d32de81c80284383":"86ea2f33ae5c573d83c68dbe06cd20413db03e8154183347d32de81c80284383","artifact:4276:8af359a32b3ba7b993e7426bbcdaddb8d31799aa62c3c176a7ddb08c18daa095":"8af359a32b3ba7b993e7426bbcdaddb8d31799aa62c3c176a7ddb08c18daa095","artifact:4276:9319ea148e4d3686535c792e0c19717f6d0194ce18edf4785733100aa1aaf3db":"9319ea148e4d3686535c792e0c19717f6d0194ce18edf4785733100aa1aaf3db","artifact:4276:9d65bb53bf9052cfab3e4fc7d97a717b24290f4ba38c75428cc777a5d9072e16":"9d65bb53bf9052cfab3e4fc7d97a717b24290f4ba38c75428cc777a5d9072e16","artifact:4276:a2ef2418346b4e437e346e5512eb3145ce83194c58861773548e80edbef007ee":"a2ef2418346b4e437e346e5512eb3145ce83194c58861773548e80edbef007ee","artifact:4276:a74d575ea7733b38c6f3a82f1b8ccb8a9de43025e19e9d5e6c2cfbf1100bfbf5":"a74d575ea7733b38c6f3a82f1b8ccb8a9de43025e19e9d5e6c2cfbf1100bfbf5","artifact:4276:aebe128203d094dab28d922a532bf1daf9ea5d30f3620e1f803bcaa479ae0bd3":"aebe128203d094dab28d922a532bf1daf9ea5d30f3620e1f803bcaa479ae0bd3","artifact:4276:b86479e69eca995c97bd410704a3b265517b167bbff3d8e047d6b0fad3df4e38":"b86479e69eca995c97bd410704a3b265517b167bbff3d8e047d6b0fad3df4e38","artifact:4276:c2f480c81f9fa54214a3ecb182c35cd65174f97be5e7eb2893f0cf549a0c27f4":"c2f480c81f9fa54214a3ecb182c35cd65174f97be5e7eb2893f0cf549a0c27f4","artifact:4276:d9f947f5bd68a478c92a4d6cf7a825e083955f1209b4317260db11b2d0573f07":"d9f947f5bd68a478c92a4d6cf7a825e083955f1209b4317260db11b2d0573f07","artifact:4276:dd3209238b5c5dce039009147105f05afa76de1e2b11a8bc8fb00ec4a9c5c7d5":"dd3209238b5c5dce039009147105f05afa76de1e2b11a8bc8fb00ec4a9c5c7d5","artifact:4276:e056f627f57002947fc10751fba46cf88a32d0d9c9214c695a8abdae7123ce4c":"e056f627f57002947fc10751fba46cf88a32d0d9c9214c695a8abdae7123ce4c"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":4276,"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 #4276: 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\":4276,\"report_sha256\":\"e0efecf376b201af9c43b28e12f4f843e17c11e3ed97f93d52daa2aa964889a1\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:4276\":\"632eafa07d1651233338d1290c80e7f9926b2025b9590deb30d1efc3fea60c4a\",\"artifact:4276:1df1e145eda635b8a567175c694a1a84cad0736cf04eee7fc0d0fe11c9d788e4\":\"1df1e145eda635b8a567175c694a1a84cad0736cf04eee7fc0d0fe11c9d788e4\",\"artifact:4276:331ec53fb9090b1870040368b3bca249b7fec9391f01be9f9e830b87fc0431a1\":\"331ec53fb9090b1870040368b3bca249b7fec9391f01be9f9e830b87fc0431a1\",\"artifact:4276:4d1cc171a803025e02635e1d2bcb2c004d6cf261407aeeaeb3d2799f6f912f54\":\"4d1cc171a803025e02635e1d2bcb2c004d6cf261407aeeaeb3d2799f6f912f54\",\"artifact:4276:54dfd044ecaf4ab1c902faa15e1d05cb0cf045676425d4217fd5c4ee5ceadb9c\":\"54dfd044ecaf4ab1c902faa15e1d05cb0cf045676425d4217fd5c4ee5ceadb9c\",\"artifact:4276:561750f9458ffd682e86fae6e020823ef9fde8042badf122b29d94ed64d26256\":\"561750f9458ffd682e86fae6e020823ef9fde8042badf122b29d94ed64d26256\",\"artifact:4276:5e7981f8fcb312a65dce07c818ad68c442444793635f695e622f3325b3606adb\":\"5e7981f8fcb312a65dce07c818ad68c442444793635f695e622f3325b3606adb\",\"artifact:4276:623e6207adddea396ac1f816c62ef882aacaad882e1bfff7fda4475a2c9daed5\":\"623e6207adddea396ac1f816c62ef882aacaad882e1bfff7fda4475a2c9daed5\",\"artifact:4276:71217e0984d7b3cccb3e312646fcc5f0c84106e8c2eaa4e0eac1efcc2419e8a3\":\"71217e0984d7b3cccb3e312646fcc5f0c84106e8c2eaa4e0eac1efcc2419e8a3\",\"artifact:4276:86ea2f33ae5c573d83c68dbe06cd20413db03e8154183347d32de81c80284383\":\"86ea2f33ae5c573d83c68dbe06cd20413db03e8154183347d32de81c80284383\",\"artifact:4276:8af359a32b3ba7b993e7426bbcdaddb8d31799aa62c3c176a7ddb08c18daa095\":\"8af359a32b3ba7b993e7426bbcdaddb8d31799aa62c3c176a7ddb08c18daa095\",\"artifact:4276:9319ea148e4d3686535c792e0c19717f6d0194ce18edf4785733100aa1aaf3db\":\"9319ea148e4d3686535c792e0c19717f6d0194ce18edf4785733100aa1aaf3db\",\"artifact:4276:9d65bb53bf9052cfab3e4fc7d97a717b24290f4ba38c75428cc777a5d9072e16\":\"9d65bb53bf9052cfab3e4fc7d97a717b24290f4ba38c75428cc777a5d9072e16\",\"artifact:4276:a2ef2418346b4e437e346e5512eb3145ce83194c58861773548e80edbef007ee\":\"a2ef2418346b4e437e346e5512eb3145ce83194c58861773548e80edbef007ee\",\"artifact:4276:a74d575ea7733b38c6f3a82f1b8ccb8a9de43025e19e9d5e6c2cfbf1100bfbf5\":\"a74d575ea7733b38c6f3a82f1b8ccb8a9de43025e19e9d5e6c2cfbf1100bfbf5\",\"artifact:4276:aebe128203d094dab28d922a532bf1daf9ea5d30f3620e1f803bcaa479ae0bd3\":\"aebe128203d094dab28d922a532bf1daf9ea5d30f3620e1f803bcaa479ae0bd3\",\"artifact:4276:b86479e69eca995c97bd410704a3b265517b167bbff3d8e047d6b0fad3df4e38\":\"b86479e69eca995c97bd410704a3b265517b167bbff3d8e047d6b0fad3df4e38\",\"artifact:4276:c2f480c81f9fa54214a3ecb182c35cd65174f97be5e7eb2893f0cf549a0c27f4\":\"c2f480c81f9fa54214a3ecb182c35cd65174f97be5e7eb2893f0cf549a0c27f4\",\"artifact:4276:d9f947f5bd68a478c92a4d6cf7a825e083955f1209b4317260db11b2d0573f07\":\"d9f947f5bd68a478c92a4d6cf7a825e083955f1209b4317260db11b2d0573f07\",\"artifact:4276:dd3209238b5c5dce039009147105f05afa76de1e2b11a8bc8fb00ec4a9c5c7d5\":\"dd3209238b5c5dce039009147105f05afa76de1e2b11a8bc8fb00ec4a9c5c7d5\",\"artifact:4276:e056f627f57002947fc10751fba46cf88a32d0d9c9214c695a8abdae7123ce4c\":\"e056f627f57002947fc10751fba46cf88a32d0d9c9214c695a8abdae7123ce4c\"},\"sha256\":\"029381182107443c69011b96f3bf164e66baa64c4779791945d2a1ef4f1bc2a5\"},\"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:4276,input_sha256:\"4cb2ef24ae0614ec83e50f73edbbfab9f70ca3f8b109fa5f6b37ec7f561dd075\",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/6618/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"de3e54aa10fb4d3dbeedcb7b600c092f2ea2158e023558dbdd0ebe9c126aed18","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}