{"id":4606,"job_id":7763,"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 #3547; no new scientific claim or execution. Calibration: the source remains accepted at **measured**; these are provisional operational relevance judgments, not scientific reacceptance or validated transfer.\n\nThe current GET /projects/md5/return/3547 returns accepted, non-provisional, measured, with report SHA-256 `d08cbfb207696b916f72305af4d92977b96975e14d25a1e8fe3106f8c389e811`, exactly matching the issued snapshot. Recomputed SHA-256 of the served report text agrees. Its nine listed artifact hashes match the nine issued artifact identifiers; artifact bytes were not fetched or revalidated in this screening. Current trusted reviews #1267 and #1381 both accept at measured, carry no reassessment flag and no structured scope assessment. research_authority reports accepted with zero scopes. No material report/artifact-list/authority change was observed. The issued first-comparison baseline is retained, rather than claiming a delta from a previous assessment.\n\n| Target | Decision | Evidence and limit |\n|---|---|---|\n| self-match | applicable, provisional | Exact legal D8 subfamily: 2^32 inputs, two score-8 inputs, none >=9. This finite family has no full fixed point. No global closure or validated transfer. |\n| all-zeros | inapplicable | A varying candidate-prefix equality census does not measure a fixed-zero digest target, despite legal input overlap. |\n| smallest-collision | inapplicable | Single-input self-prefix equality is not pairwise 128-bit digest equality; no pair construction or length bound is supplied. |\n\nAll entries use scope_keys:[] because the accepted source has no typed scope. Positive relevance is provisional; missing typed scope authority remains a validation gap, not grounds to invent scopes, repeat the review or launch a new experiment. The administrative matrix cannot settle any of the twelve configured topic obligations beyond the source's explicitly finite relevance.\n\nHistorical evidence reused: #3547 reports 4,294,967,296 literal-ASCII inputs, counts at depths >=1..9 of 268424367, 16777722, 1049414, 65285, 4080, 232, 14, 2, 0, and 1.29 CPU-hours. Reviews #1267/#1381 support the finite measured interpretation. The reported random-map comparison is descriptive compatibility (maximum reported |z|=1.5 at depths 1..8), not proof of an output law or a matched performance comparison. The local self-match summary v10 points to the predecessor period-4 census; its 65,536 inputs and maximum score 3 are also explicitly reported in #3547. The all-zeros v8 and collision-padding v8 summaries were used for orientation only; no pending claims in them were elevated or resurveyed.\n\nGET /projects/md5/research-applicability returned a bounded 17-source index without #3547. Repeating with ?source_return_id=3547 returned the same list, so that query did not establish a source-specific filter. Absence from a bounded index is not evidence of source withdrawal or staleness; currentness evidence here is the exact source response and issued snapshot binding. Initial sandboxed GETs for the source and shared-research schema failed DNS resolution; the same read-only queries succeeded with permitted network access, HTTP 200. No scientific execution failed, because none was launched.\n\nNew scientific usage: 0 compute calls, 0 MD5 evaluations, 0 scientific CPU seconds (cpu_hours=0). Source inspection, JSON parsing, SHA-256 binding checks and payload validation are administrative work. No new witness, route, proposal, review request, document revision or scientific artifact is submitted. The controller owns publication and exact native usage capture.\n\nSources: return #3547 (Domain and claim; What it closes; Method, controls and independence; Limits), including current reviews #1267 and #1381 and research_authority; GET /projects/md5/research-protocol?section=shared-research, Cross-area applicability; GET /projects/md5/research-applicability, bounded currentness index. Local orientation only: research/summaries/self-match.json v10, all-zeros.json v8, collision-padding.json v8 (local-only, historical). The source's unpublished NIMOI work is provenance reported by the source, not independently inspected evidence here.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-18T17:47:23.990Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3547],"messages":[]},"tokens":{"log":"summary","input":61377,"models":{"gpt-6.1-sol":8193},"output":8193,"source":"reported","entries":0,"cache_read":814464,"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":"2026-10-18T17:47:28.606Z","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_f680a30d407f21e153055430","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":"applicable","target_id":"self-match","scope_keys":[],"evidence_md":"Provisional relevance only. Return #3547, Domain and claim / What it closes / Limits, is directly within this target: D8={m*4 : m is eight lowercase hexadecimal ASCII characters}, hashed as 32 literal bytes under standard-IV, full 64-step MD5 and exact padding. Its accepted exhaustive census covers 4,294,967,296 inputs: exactly two score-8 candidates and zero with score >=9. Reviews #1267 and #1381 accept this finite measured result; #1267 records independent C census agreement and #1381 records package inspection. This rules out a complete fixed point only inside D8 and supplies finite evidence about this particular periodic slice. It bears on periodic-method screening and descriptive random-map comparisons, not on the entire target. There are no declared typed scopes, so this positive consideration grants no validated transfer.","assumptions_md":"Retain exactly D8, literal ASCII hashing, leading-prefix scoring and the source's original exhaustive coverage. No conclusion for period 16, near-periodic or nonperiodic strings, global fixed-point existence, hardness, or a throughput advantage. The nested counts and sparse tails do not prove a random-map law; no equal-cost observed baseline was supplied. Missing typed scope keys and matching endorsements remain an unresolved validation condition. scope_keys is deliberately empty; no automatic transfer is authorized.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"Return #3547 measures equality between each candidate's varying prefix and its own digest. The all-zeros target instead requires a fixed zero digest prefix, for arbitrary 0..1024-byte inputs. D8 strings are legal 32-byte inputs here, but that input-domain inclusion does not convert self-prefix counts into zero-prefix counts. The two published score-8 digest prefixes are 65afb15e and bd4e21da, rather than zeros. The accepted report and reviews provide neither an all-zeros census nor an optimization tested on this objective. Its G(m)=m observation is not G(m)=0. Thus the accepted scientific content offers no supported transfer for the fixed-zero goal.","assumptions_md":"This decision concerns the accepted source evidence, not a theorem that periodic inputs cannot yield zeros. Do not infer zero-target probabilities from its self-match statistics, or a performance gain from its historical 1.29 CPU-hours. Adapting the engine or re-scoring an unpreserved full digest population would change the evidence and is outside this screening. All-zeros methods and the full target remain open.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"The collision target compares full 128-bit digests of two distinct inputs and minimizes their total bytes. Return #3547 compares each single input against its own varying text prefix. Its two best inputs have different complete digests (65afb15e510e83483f4821bc4f59e560 and bd4e21da142f5d0a20c1299d22efbfe3), so they do not supply a collision. A maximum self-match score of 8 does not constrain digest equality between other pairs. The source does not provide an exhaustive pair comparison, collision construction, shorter-length obstruction or measured collision-generation gain; its finite D8 closure therefore does not transfer to the collision objective.","assumptions_md":"Preserve distinct-input, unordered-pair, all-128-bit equality and exact MD5 requirements, allowing the target's unequal lengths and empty members. No absence of collisions within D8, no lower bound on collision length and no improvement over the 128-byte reference follows. A changed pairwise study would be a separate scientific question, not an action authorized by this assessment.","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":7763,"input_sha256":"0214fe7cec003d1546b61b8045ec714b0c7d289202c8b69b009efb50c8f8a6a2","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"d08cbfb207696b916f72305af4d92977b96975e14d25a1e8fe3106f8c389e811","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3547,"material_evidence":{"sha256":"44fca05b8ed07ad35e331953eac78010885c8a8052e2e24ee7215953f97ba7a4","entries":{"return:3547":"f8f18620bb7585ad87ad29b1183288d3e53457eded13484458e0f9463fcbc8c6","artifact:3547:026e6ba9476b19f56eaf9df2dce677ef0dade61f5df448678c292c18e3ca5e3a":"026e6ba9476b19f56eaf9df2dce677ef0dade61f5df448678c292c18e3ca5e3a","artifact:3547:3dfedd69463e3d07cee71586c6a95848f5521374a0c135ea532f2a17d7aad64b":"3dfedd69463e3d07cee71586c6a95848f5521374a0c135ea532f2a17d7aad64b","artifact:3547:59261a7ff865a9ef0dd92b926cdf7729d4cfe0f76d7afb1e011e9215559e6a5a":"59261a7ff865a9ef0dd92b926cdf7729d4cfe0f76d7afb1e011e9215559e6a5a","artifact:3547:6494d910f12049f1d33babca7ff190cdd2baee5884ae0af1927a320b780b2d0f":"6494d910f12049f1d33babca7ff190cdd2baee5884ae0af1927a320b780b2d0f","artifact:3547:736559420d6081eaa27b79df4b9bbe65395e5837f1a12a00f4cb480f50fc5f1c":"736559420d6081eaa27b79df4b9bbe65395e5837f1a12a00f4cb480f50fc5f1c","artifact:3547:b49c67d4d7cf09e146f2aad094627a36facdfb7fc44c023c256c6088e5bb355c":"b49c67d4d7cf09e146f2aad094627a36facdfb7fc44c023c256c6088e5bb355c","artifact:3547:b94bfb45355219e442810903c25824669f71ad79b54e47f91bdfb8cd95197058":"b94bfb45355219e442810903c25824669f71ad79b54e47f91bdfb8cd95197058","artifact:3547:bcdb93c1b10ce4aa1269199dee885e660d889a599ef243346790d6c2bfa35dd8":"bcdb93c1b10ce4aa1269199dee885e660d889a599ef243346790d6c2bfa35dd8","artifact:3547:fdbea2aea26b8cf80947c9e9388188ea642f729fad5d1efccff88662ad491f5f":"fdbea2aea26b8cf80947c9e9388188ea642f729fad5d1efccff88662ad491f5f"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3547,"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 #3547: 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\":3547,\"report_sha256\":\"d08cbfb207696b916f72305af4d92977b96975e14d25a1e8fe3106f8c389e811\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3547\":\"f8f18620bb7585ad87ad29b1183288d3e53457eded13484458e0f9463fcbc8c6\",\"artifact:3547:026e6ba9476b19f56eaf9df2dce677ef0dade61f5df448678c292c18e3ca5e3a\":\"026e6ba9476b19f56eaf9df2dce677ef0dade61f5df448678c292c18e3ca5e3a\",\"artifact:3547:3dfedd69463e3d07cee71586c6a95848f5521374a0c135ea532f2a17d7aad64b\":\"3dfedd69463e3d07cee71586c6a95848f5521374a0c135ea532f2a17d7aad64b\",\"artifact:3547:59261a7ff865a9ef0dd92b926cdf7729d4cfe0f76d7afb1e011e9215559e6a5a\":\"59261a7ff865a9ef0dd92b926cdf7729d4cfe0f76d7afb1e011e9215559e6a5a\",\"artifact:3547:6494d910f12049f1d33babca7ff190cdd2baee5884ae0af1927a320b780b2d0f\":\"6494d910f12049f1d33babca7ff190cdd2baee5884ae0af1927a320b780b2d0f\",\"artifact:3547:736559420d6081eaa27b79df4b9bbe65395e5837f1a12a00f4cb480f50fc5f1c\":\"736559420d6081eaa27b79df4b9bbe65395e5837f1a12a00f4cb480f50fc5f1c\",\"artifact:3547:b49c67d4d7cf09e146f2aad094627a36facdfb7fc44c023c256c6088e5bb355c\":\"b49c67d4d7cf09e146f2aad094627a36facdfb7fc44c023c256c6088e5bb355c\",\"artifact:3547:b94bfb45355219e442810903c25824669f71ad79b54e47f91bdfb8cd95197058\":\"b94bfb45355219e442810903c25824669f71ad79b54e47f91bdfb8cd95197058\",\"artifact:3547:bcdb93c1b10ce4aa1269199dee885e660d889a599ef243346790d6c2bfa35dd8\":\"bcdb93c1b10ce4aa1269199dee885e660d889a599ef243346790d6c2bfa35dd8\",\"artifact:3547:fdbea2aea26b8cf80947c9e9388188ea642f729fad5d1efccff88662ad491f5f\":\"fdbea2aea26b8cf80947c9e9388188ea642f729fad5d1efccff88662ad491f5f\"},\"sha256\":\"44fca05b8ed07ad35e331953eac78010885c8a8052e2e24ee7215953f97ba7a4\"},\"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:3547,input_sha256:\"0214fe7cec003d1546b61b8045ec714b0c7d289202c8b69b009efb50c8f8a6a2\",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/4606/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"a7e846c216fe985136dbbe96edebe1344e0eba59875a7a859297d9ae3cee4d40","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}