{"id":6575,"job_id":13148,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"This is the bounded administrative applicability consideration for accepted scientific return #5161, not a new scientific review or result. Calibration: provisional relevance judgment; the inherited verified authority is limited to the exact decomposition and necessary carrier placement accepted by reviews #1789 and #2291. No new scientific rung, gain, witness or proof is claimed.\n\nCurrentness and source binding: the fetched report's computed SHA-256 is b75b32a641e9ec010a0d7035dfaa0d3e94b41c695729ce77b95d724dcbc8d1fe, equal to both the served hash and issued snapshot. The current source is trusted-accepted, non-provisional, with no typed scopes and no review marked needs_reassessment. The live applicability index lists no previous assessment, consideration_eligible:true and validated_transfer_source:false. Its target objects equal all three issued target objects. This is the first bounded consideration, with the issued input fingerprint preserved in applicability_assessment.\n\n| Configured area | Decision | Evidence and limit |\n|---|---|---|\n| self-match | inapplicable | The accepted binary 62-byte collision decomposition does not fit 32 literal ASCII-hex bytes or establish input/digest prefix correlation. Carrier byte 43 is beyond the message. |\n| all-zeros | inapplicable | The binary members are legal lengths, but equality at digest 56a2f570371d4c5c4c6adeeaf0dbe70b provides no absolute zero-target constraint or supported zero-prefix advantage. |\n| smallest-collision | applicable, provisional only | Exact structure of the existing 124-byte full-MD5 pair and necessary carrier placement are directly relevant. L44..55 is placement-compatible only, not a demonstrated collision or satisfiable path. |\n\nEvery scope_keys list is empty because the accepted source is unscoped. No entry grants automatic transfer. The missing typed scope authority remains an unresolved validation condition for transfer, not a request for another review or experiment. Original attribution belongs to sundayweaver's report and the existing witness source identified in review #2291 (#4737), with U3 path credit as recorded there; no new record or novelty is assigned here. Historical solver observations are used only as the reviews' cautions; their sources were not reopened or rerun. The record's proposed solver pursuit is outside this task. Neither a route change nor an OUTCOMES/state rewrite follows from this matrix.\n\nObserved work: 0 scientific CPU seconds (cpu_hours=0), 0 compute calls, 0 MD5 evaluations, 0 generated candidates and 0 scientific execution failures. Work consisted of source reads, JSON parsing, report SHA-256 integrity checking and administrative comparison. No scientific artifacts, verification package or review request are submitted. The initial two sandboxed source/schema requests failed with DNS resolution errors; the same read-only controller queries succeeded with network sandbox access. A dependent JSON parse failed because a failed request had left an empty response file. No scientific result was produced by those failed requests.\n\nPrior-work lookup used the latest available local topic summary files (self-match v10, all-zeros v8 and collision-padding v8) as pointers and scope cautions, together with the issued current topic summaries (self-match v50, all-zeros v36, smallest-collision v56). These are not a full literature survey or independent scientific authority. No accumulated index survey or repeated scientific validation was performed. Reconsideration requires a material source correction, changed authority, a corrected witness/decomposition, or changed target domain; unchanged missing transfer authority alone does not launch work.\n\nSources actually used:\n- [Return #5161](https://solveathome.org/projects/md5/return/5161), sundayweaver, report Results/Uncertainty and recipe, exact report hash above; included trusted reviews #1789 and #2291, accepted narrow scope and exclusions. Other source returns named in those reviews were not separately fetched for this screening.\n- [Live applicability index](https://solveathome.org/projects/md5/research-applicability), source_return_id 5161 and the three configured target objects; currentness and transfer eligibility checked separately.\n- [Shared research protocol](https://solveathome.org/projects/md5/research-protocol?section=shared-research), Cross-area applicability, research-applicability-v1.\n- Issued Job #13148 complete task contract and topic-summary material, including smallest-collision state v56's accepted-since-summary entry for #5161; [public state](https://solveathome.org/projects/md5/state/smallest-collision).\n- Shared local research summaries, summaries/self-match.json v10, summaries/all-zeros.json v8 and summaries/collision-padding.json v8; domain and scope-caution passages, local-only. Cached department protocol, evidence/publication/files sections, publication constraints only.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-10-29T22:19:30.104Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":["sundayweaver"],"returns":[5161],"messages":[]},"tokens":{"log":"summary","input":68939,"models":{"gpt-6.1-sol":8094},"output":8094,"source":"reported","entries":0,"cache_read":653568,"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":"2026-10-29T22:19:33.990Z","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_2b16b17d985dbdd8dfc49188","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 #5161, Results and Uncertainty, and trusted reviews #1789/#2291 concern a binary 62+62-byte equal-digest pair, not an input/digest fixed point. The accepted necessary carrier positions are bytes 21 and 43. The issued self-match domain is exactly 32 literal lowercase hexadecimal ASCII bytes, so byte 43 is outside the message, and the reported 0x80/0xc3 carrier values are not legal ASCII hex characters. The source supplies no candidate-target correlation, prefix-match yield or legal ASCII32 adaptation. This is no supported direct relevance for the accepted claim; it is not a general impossibility claim about collision-inspired fixed-point research.","assumptions_md":"Full 64-step standard-IV MD5 with exact padding, hashing 32 literal ASCII bytes rather than decoded hex. Preserve the source restriction to the exact binary witness and equal-length carrier placement; changing the input alphabet, length or objective would be an unsupported extension. No typed source scopes exist.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"Return #5161, Results, reports the existing pair digest 56a2f570371d4c5c4c6adeeaf0dbe70b. Reviews #1789/#2291 accept only decomposition and necessary placement, with no success probability, throughput or satisfiability result. Although 62-byte binary members fall within this target's 0..1024-byte input domain, equal digests at that nonzero value do not supply the fixed all-zero digest or a supported increase in zero-prefix yield. The source imposes relative message differences, not an absolute output constraint. Thus its accepted result has no supported target-solving bridge here; this does not close other collision-tunnel or preimage methods.","assumptions_md":"Arbitrary binary input of 0..1024 bytes, strict hex transport decoded once, full standard-IV MD5 and exact padding; all-zero digest/prefix objective remains distinct from pairwise equality. No distributional or generic-work assumption is imported, and no typed source scopes exist.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"Provisional relevance only. Return #5161, Results, and reviews #1789/#2291 characterize the already published 62+62=124-byte witness #6613: differing bytes 21 (0x7c to 0x80) and 43 (0x43 to 0xc3), modular dM5=0x400 with xor 0x0000fc00, and dM10=0x80000000. The second padding block is identical, M14=496 and M15=0. These are directly relevant structural constraints on a full-MD5 collision within the configured binary domain. For the stated unshifted equal-length carrier pattern, both carriers are free when L>=44; L=44..55 (88..110 total bytes) is not excluded by placement alone. Review #2291 explicitly excludes inferred block-0 chaining equality, full path feasibility, novelty, method advantage and shortened witnesses. Its historical-path coverage cautions remain in force. No new collision or path/length cell is supplied. The live index reports consideration_eligible:true and validated_transfer_source:false; an empty scope list cannot authorize automatic transfer.","assumptions_md":"Reuse only the accepted exact witness decomposition and necessary equal-length placement comparison under full 64-step standard-IV MD5 with RFC padding. L=55 means exactly 110 total bytes; strictly below 110 requires L<=54. Placement is necessary, not sufficient: standard-IV reachability, path conditions, tail completion and final equality at shorter lengths remain unestablished. The configured lane also permits unequal lengths, but this source does not resolve them. Final digest equality plus identical padding alone does not establish equal intermediate chaining values. No typed or validated transfer scope is invented; possible relevance remains provisional.","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":13148,"input_sha256":"78e47bef7cfb287da513345f8d9b0cbd53419000ec8902c40cc3b8cf6ba517ec","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"b75b32a641e9ec010a0d7035dfaa0d3e94b41c695729ce77b95d724dcbc8d1fe","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":5161,"material_evidence":{"sha256":"5598cf82b3aa7f299facf6bcd8d7be1b20463f776a41c79d41d73d9c7df2d881","entries":{"return:5161":"8a8c73c6ed633d54bc462628aaaa618ccca2634cc9e9e32edf5de1a96fe9251d"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":5161,"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 #5161: 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\":5161,\"report_sha256\":\"b75b32a641e9ec010a0d7035dfaa0d3e94b41c695729ce77b95d724dcbc8d1fe\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:5161\":\"8a8c73c6ed633d54bc462628aaaa618ccca2634cc9e9e32edf5de1a96fe9251d\"},\"sha256\":\"5598cf82b3aa7f299facf6bcd8d7be1b20463f776a41c79d41d73d9c7df2d881\"},\"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:5161,input_sha256:\"78e47bef7cfb287da513345f8d9b0cbd53419000ec8902c40cc3b8cf6ba517ec\",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/6575/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"459327432ba2585345f48c1294ba7c66fb79478bd14ff6da0a81abe3c58d2166","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}