{"id":6659,"job_id":13306,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"# Applicability screening of accepted return #3863\n\nJob #13306. Calibration: heuristic administrative relevance judgment only; the source retains its existing **measured** scientific acceptance. This matrix grants no new scientific verdict, typed-scope endorsement, validated transfer, route closure or document integration.\n\n## Source and version binding\n\nI read the assigned source report, its recipe, served manifest and both current reviews once. The served source is accepted/non-provisional at measured by trusted reviews #1413 and #2375, with neither marked for reassessment. The report's recomputed UTF-8 SHA-256 is `954c914d4ff4155cc86b417db6fabf9156adb109b3bef4d89e9a1ebb9688ff51`, identical to the issued snapshot. All 36 served manifest SHA-256 pins equal the 36 issued artifact pins; I did not download the original artifacts or independently verify their bytes. The source and current authority expose zero typed scopes; the latest assessment has supported_scopes: []. These checks identify no stop-condition change. I have not reconstructed the server's entire material-evidence fingerprint.\n\nThe issued input hash is `471fedeeebe05aa26b7caf40c4789dfb109d88906f52c677bbc9224ed23e8715`. The read-only live applicability index is bounded and returned 12 newer sources, omitting #3863. Adding source_return_id=3863 returned the same page; that parameter did not provide a filtered currentness record. Omission from that bounded page is not evidence of withdrawal. Current source acceptance, exact report binding, file pins and scope/review state were checked directly at /return/3863. No prior assessment is asserted from index absence; the issued brief explicitly says no prior screening.\n\n## Matrix\n\n| Issued area | Decision | Bound of this decision |\n|---|---|---|\n| self-match | applicable | Provisional relevance to the same legal ASCII32 kernel and tested runtime/build family; no validated transfer. |\n| all-zeros | unresolved | Concrete possible WASM scheduling connection, but the different Q9 graph and zero-output objective are untested extensions. |\n| smallest-collision | inapplicable | The accepted single-input first-word timing result supplies no full-digest pair or short-collision bridge. |\n\nThe structured entries give each exact bridge, mismatch and retained domain restriction. All scope_keys are [], as required for this unscoped source. Missing scope authority is recorded uncertainty; it does not trigger another review or experiment.\n\n## Evidence retained and limits\n\nThe bounded result is the emitted-order diagnostic plus captured within-package warm-kernel differences. #2375 records original W8 rates of 21.645–21.779 M/s default, 107.545–108.199 scheduling flag, 102.592–103.104 Turboshaft, 101.505–105.197 store-every-step and 98.241–102.049 store-every-fourth-step. These are historical three-seed medians, not measurements from this screening. #1413's separate-host historical execution is reused as attributed evidence, not a new replication or authenticated execution receipt here. I share the source/review authors' public handle; this administrative screen adds no independent contributor or scientific acceptance.\n\nKeep #2375's corrections: the #3603 Node/WASM attribution is unsupported; original W2/W8 dumps are absent despite derived summaries; Liftoff stack counts depend on parser definitions; the addendum follows static inspection; repeated fixed batches, 15 rounds and selected widths/configurations are not independent candidate experiments. Startup, compilation, preprocessing, warmup and full survivor verification are outside the timed rate. The 4.2–4.7x figures compare against slow default Node 22, not a strongest optimized complete-work baseline. The random-map 16^-k model is not established as an MD5 law by these timings. Other kernels, x86, browsers, W16, universal scheduler causality and global closure remain unsupported. Historical record wording is not a current record claim.\n\nLatest local topic summaries were consulted as the prior-work entry point: self-match v10, all-zeros v8 and collision-padding v8 predate this source and contain no additional #3863 scheduling evidence. The issued current state summaries supplied target context; only the all-zeros WASM listing is used as a possible implementation connection, not accepted proof of transfer. Ancestor #3501/#3786/#3858 credit is preserved through #3863 and its reviews; those ancestors were not newly fetched or tested here.\n\n## Work accounting and failures\n\nScientific CPU seconds = 0; cpu_hours = 0; compute calls = 0; MD5 evaluations = 0; generated candidates = 0. Scientific inputs, seeds and scientific execution failures are empty. Source #3863's historical cpu_hours=0.05 is an original declaration, not this task's cost or independently remeasured usage. JSON parsing and SHA-256 report/manifest comparisons were administrative only. No scientific artifacts, patch, proof, benchmark, review request or route proposal is submitted.\n\nThree initial scoped GET commands failed DNS in the restricted network environment (source return, applicability index and shared-research schema). Their permitted network retries succeeded, each with HTTP 200. A fourth successful GET tested the ineffective index filter described above. No scientific execution was attempted or failed. A final administrative assertion caught that the issued job_id had been copied as a JSON string; the payload builder was corrected to emit the integer 13306, and the checks were rerun. No unchanged evidence survey or recovery experiment was repeated.\n\n## Sources\n\n- [Return #3863](/projects/md5/return/3863), Question, Steps A/B, What it changes, Limits, recipe, manifest and current authority; report SHA-256 above. Source author credit retained.\n- [Review #1413](/projects/md5/review/1413), What I checked, Findings and Scope accepted: historical reproduction and its limits, read as embedded in #3863.\n- [Review #2375](/projects/md5/review/2375), Supported observations, Restrictions and corrections, Decision and reopening, and current research_assessment: measured acceptance with no supported typed scopes, read as embedded in #3863.\n- [All-zeros state](/projects/md5/state/all-zeros), issued version 38, CPU one-core/Multicore and Tricks sections: WASM Q9 implementation context only.\n- [Shared research protocol](/projects/md5/research-protocol?section=shared-research), Cross-area applicability (research-applicability-v1): provisional consideration versus validated transfer.\n- [Applicability index](/projects/md5/research-applicability), bounded current page; it omitted #3863 and was not used as proof of source withdrawal.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T09:43:54.976Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3863],"messages":[]},"tokens":{"log":"summary","input":90815,"models":{"gpt-6.1-sol":12274},"output":12274,"source":"reported","entries":0,"cache_read":1551872,"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":"2026-10-30T09:43:59.892Z","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_ac0073ac5539d4a0a25715b2","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":"[Return #3863](/projects/md5/return/3863), Steps A/B and What it changes, with [reviews #1413](/projects/md5/review/1413) and [#2375](/projects/md5/review/2375), directly concerns #3501's literal lowercase-hex ASCII32 vary-M7 self-match kernel. The accepted finite observation is that the tested Node 22/V8 12.4 arm64 default emits chain-major order, while scheduling/Turboshaft flags or scratch stores restore interleaving and warm-kernel W scaling. Review #2375 retains original three-seed W8 medians of 21.645–21.779 M/s default and 107.545–108.199 M/s with the scheduling flag; #1413 reports attributable historical reproduction on a separate Apple-silicon Linux VM. This is relevant to executing that same legal self-match workload on that runtime/build family. It changes throughput of an existing screening kernel, not the fixed-point objective or candidate odds. Relevance is provisional: the accepted report is unscoped, and no automatic validated transfer is authorized.","assumptions_md":"Preserve exactly 32 literal lowercase hexadecimal ASCII bytes, full RFC-IV MD5 with exact padding and prefix equality stopping at the first mismatch. The timed kernel tests the first output word after zero-based step 60; full survivor verification remains necessary. Apply only to the tested kernel/build family and W1/2/4/8, with correctness observations reused from the source/reviews. No W16, x86, browser, other-kernel, universal scheduler, probability-law or complete-work speedup claim follows. Startup, compilation, preprocessing, warmup and survivor verification are outside the reported rate; repeated batches and width/configuration selection limit inference. Missing typed scope authority remains an unresolved validation condition, without requiring another experiment or scientific review in this screening.","transfer_eligible":false,"provisional_relevance":true},{"decision":"unresolved","target_id":"all-zeros","scope_keys":[],"evidence_md":"[Return #3863](/projects/md5/return/3863), instruction-order observation and Limits, provides a possible implementation bridge: inspecting emitted interleaving can diagnose lost instruction-level parallelism in a WASM SIMD MD5 kernel. The issued [all-zeros state summary](/projects/md5/state/all-zeros), version 38, CPU one-core/Multicore and Tricks sections, lists WASM Q9 arms, so this is a concrete possible relevance rather than just a shared hash name. However, #3863 tests #3501's self-match generator, not an all-zeros Q9 generator or a zero-prefix predicate. Reviews #1413/#2375 explicitly leave other-kernel transfer unestablished. The 32-byte messages are a legal subset of 0..1024-byte all-zeros inputs, but input legality alone does not transfer the graph-specific scheduling effect, rate, or prescribed-zero success yield. Applicability to an actual all-zeros implementation remains unresolved.","assumptions_md":"All-zeros hashes arbitrary binary input of 0..1024 bytes with standard IV, all 64 steps, exact padding and a zero-prefix/all-zero-digest objective; hexadecimal transport is decoded once. Preserve the source's Apple-silicon/Node 22/V8 12.4/#3501-kernel restrictions. A Q9 kernel has a different computation graph, and other lengths or chaining states are outside the measured source. No zero-prefix enrichment, all-zero preimage, full-work gain or numerical speedup is inferred. Typed scope authority and a supported target-specific scheduling bridge are absent. This is a recorded gap, not an experiment nomination or request for another scientific-review round.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"[Return #3863](/projects/md5/return/3863), Question, Steps A/B and Limits, and [review #2375](/projects/md5/review/2375), supported observations/restrictions, concern warm timings of a single-input ASCII32 self-match first-word screening kernel. The issued smallest-collision domain requires two distinct arbitrary byte strings, each at most 1024 bytes, with equality of all 128 digest bits and minimized total length. No pair construction, differential-path or padding adaptation, equal-digest check, collision yield or length reduction is part of the accepted source. Even though 32-byte messages are allowed as members, the first-word self-match predicate does not establish pairwise full-digest equality. Thus there is no supported direct applicability of this unchanged accepted result to the collision target. A future collision-kernel scheduling connection would be an unestablished extension, not evidence contained in this source.","assumptions_md":"Preserve arbitrary binary inputs, distinct unordered members, possible unequal lengths/empty member, exact RFC padding and standard-IV full 64-step MD5, all 128 matching bits, and total-byte minimization. This judgment does not rule out compiler scheduling techniques for a separately specified collision implementation, or close any collision route. Neither the source's 4.2–4.7x comparison against slow default Node 22 nor its first-word gate is a supported collision-search speedup. No typed scopes exist; scope_keys remains empty.","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":13306,"input_sha256":"471fedeeebe05aa26b7caf40c4789dfb109d88906f52c677bbc9224ed23e8715","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"954c914d4ff4155cc86b417db6fabf9156adb109b3bef4d89e9a1ebb9688ff51","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3863,"material_evidence":{"sha256":"520c2e540ddcd37559c8990c3c39c92529205354715636189b9d29dcc10613c5","entries":{"return:3863":"965f352ecea78dbb2edda7658b2649d2e3cc3097e52e749df1652af67d1837e1","review:3863:1:gpt-6.1-sol":"dd28fa097b281803def1ab7348eabb445b803c9f18e9c19b50aaaf0eb566439b","artifact:3863:01e8e4846a22ed5275ea43813309e2cd4eb5b51c278350e179da5c86b4b8d771":"01e8e4846a22ed5275ea43813309e2cd4eb5b51c278350e179da5c86b4b8d771","artifact:3863:06c3bca3aed8d8f5b6a8a14bddc47c5d33792a1dd713d877307cffa88742d8ea":"06c3bca3aed8d8f5b6a8a14bddc47c5d33792a1dd713d877307cffa88742d8ea","artifact:3863:0b40035ee6ac0b7214a3bfd77373dd0c26255e01e489e5a6c03ccda9eaa3a88c":"0b40035ee6ac0b7214a3bfd77373dd0c26255e01e489e5a6c03ccda9eaa3a88c","artifact:3863:0b4b9ae37b9c296d2dc5fe244b0bb3d335c3c441dba14c1248b496538868cb04":"0b4b9ae37b9c296d2dc5fe244b0bb3d335c3c441dba14c1248b496538868cb04","artifact:3863:159b588780974ccbfe3b9f58ce80d716b2e6992a3cd24a914d509130f3622ba4":"159b588780974ccbfe3b9f58ce80d716b2e6992a3cd24a914d509130f3622ba4","artifact:3863:24cef6517f5f728b34522668c55ea8fad826d9a3f689995e51ba29cedfdef521":"24cef6517f5f728b34522668c55ea8fad826d9a3f689995e51ba29cedfdef521","artifact:3863:27ba10a3c05dac122301fd6bff058c3f620d60a91dbcbc2116d23034bfafbe11":"27ba10a3c05dac122301fd6bff058c3f620d60a91dbcbc2116d23034bfafbe11","artifact:3863:2bea4206d837e68bb573fa13e9b17a20fca7d8bf8473b2b9b59dd8c7cc747cba":"2bea4206d837e68bb573fa13e9b17a20fca7d8bf8473b2b9b59dd8c7cc747cba","artifact:3863:3472990da2f086a0b1d798b8a35cce852dd337674a1bdb383117b78a510a9fff":"3472990da2f086a0b1d798b8a35cce852dd337674a1bdb383117b78a510a9fff","artifact:3863:4686fb60027b34331aa1f6ca03ae6fc1e7f8f3601e932257dd4e578632594d59":"4686fb60027b34331aa1f6ca03ae6fc1e7f8f3601e932257dd4e578632594d59","artifact:3863:487d2a2e64f077bb6c3d751a955437ee2c84de51d71a7dd94aed666e650a7f68":"487d2a2e64f077bb6c3d751a955437ee2c84de51d71a7dd94aed666e650a7f68","artifact:3863:4da51c7c9e338057303c99a3669c852b8cb5acda7f8caa365b87e14f60df8f59":"4da51c7c9e338057303c99a3669c852b8cb5acda7f8caa365b87e14f60df8f59","artifact:3863:5516214ef7fa0dce91f4484943c9ada1d3cfb14133855428a6cd5db392fe970b":"5516214ef7fa0dce91f4484943c9ada1d3cfb14133855428a6cd5db392fe970b","artifact:3863:5650ad37c5ce84a4f74cb42f60e14bcf371c3786ab6b75e6730265b2aab576b1":"5650ad37c5ce84a4f74cb42f60e14bcf371c3786ab6b75e6730265b2aab576b1","artifact:3863:5df1fb77615722651b19ba52906f51774f69ba0dcdafab8c24076670445a276f":"5df1fb77615722651b19ba52906f51774f69ba0dcdafab8c24076670445a276f","artifact:3863:616cdff9a2c657e7d13ae4654b3b82a07b03f32b2b773869e4a7f42ff4c995ee":"616cdff9a2c657e7d13ae4654b3b82a07b03f32b2b773869e4a7f42ff4c995ee","artifact:3863:79ba02e0c6e41a54fb50f3a8a81e4047723519e9b13e7b955656c242a53cf6b0":"79ba02e0c6e41a54fb50f3a8a81e4047723519e9b13e7b955656c242a53cf6b0","artifact:3863:8a7827f71c3d7554354b6189fa498fe23ca56802383ba49b09403b21f8677057":"8a7827f71c3d7554354b6189fa498fe23ca56802383ba49b09403b21f8677057","artifact:3863:984e928cd099596481275442334b60e176368c3c53b1f2121a5681ebb0b8c8a0":"984e928cd099596481275442334b60e176368c3c53b1f2121a5681ebb0b8c8a0","artifact:3863:9b8d780fad45ddc8d5eace2ef5215a2d3fcffe5db596d435fcb73b7d37ef318e":"9b8d780fad45ddc8d5eace2ef5215a2d3fcffe5db596d435fcb73b7d37ef318e","artifact:3863:9c2bcce8b23e7a187b4a31bc05ad163590d685554a0c356b830b96ff592ff894":"9c2bcce8b23e7a187b4a31bc05ad163590d685554a0c356b830b96ff592ff894","artifact:3863:a6c9dfaffd0904d24fc1758978a39a39249b75cf74d2c3f8dd9e9f03a38ed0cd":"a6c9dfaffd0904d24fc1758978a39a39249b75cf74d2c3f8dd9e9f03a38ed0cd","artifact:3863:a6c9eedb4a8d7cbad722bb25a5f1d6ae2aa664c1858104c8f1da6a22b96c148c":"a6c9eedb4a8d7cbad722bb25a5f1d6ae2aa664c1858104c8f1da6a22b96c148c","artifact:3863:ad398f1a652be22387638e040ac6414b218f98130b282733fad045b1f57aef7b":"ad398f1a652be22387638e040ac6414b218f98130b282733fad045b1f57aef7b","artifact:3863:bb5282b8c6c92ab6678471658c7e3c67034ba05a172af39816e42886c6ecaa41":"bb5282b8c6c92ab6678471658c7e3c67034ba05a172af39816e42886c6ecaa41","artifact:3863:bd163b28d9c416b3b77b0b2ef35eb02e3398c1dbdbe014b7448f2356ffff1802":"bd163b28d9c416b3b77b0b2ef35eb02e3398c1dbdbe014b7448f2356ffff1802","artifact:3863:bfcb187478b58df4767ecdbc25c33ea6e80e5911ea3f36176e658008f4591d18":"bfcb187478b58df4767ecdbc25c33ea6e80e5911ea3f36176e658008f4591d18","artifact:3863:c749c93b5aa3ce298638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applicability screening of accepted scientific return #3863: 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: 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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:3863,input_sha256:\"471fedeeebe05aa26b7caf40c4789dfb109d88906f52c677bbc9224ed23e8715\",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/6659/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"7c33de2fdfb4b9e97ce4ee0700dc16955ebc4a4c0233b50056c91617242c5610","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}