{"id":6629,"job_id":13268,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"# Applicability screening of return #3347\n\nAdministrative relevance judgment only; no new scientific claim or verdict. Job #13268 uses the exact issued source and input binding. The source remains trusted-accepted at measured under reviews #1260/#2354. Its UTF-8 report hashes to f5eacd4a7dbc12a180c38a275a01cc29a174930f53dc34593dac639647622fa2, equal to both the served field and issued snapshot. Both served scope key/hash pairs, the six-file manifest hash set and all three configured target objects match the issued values. File contents and the aggregate material-evidence fingerprint were not independently reconstructed in this screening.\n\n| Target | Decision | Basis |\n|---|---|---|\n| self-match | inapplicable | The measured 52-byte all-zeros kernels do not implement the exact 32-character lowercase ASCII fixed-point predicate. |\n| all-zeros | unresolved | Direct provisional relevance of the legal 52-byte measurements; both exact typed scopes still lack scoped endorsement, so no validated transfer. |\n| smallest-collision | inapplicable | Single-input zero-prefix enumeration supplies no distinct equal-digest pair construction, pair-level efficiency or shorter collision. |\n\nBoth source keys are retained in each entry to identify precisely what was screened: m1-gpu-vs-cpu-allzeros-candidates-per-joule (c640d2e3903c67b30e5828791790280b7fe002ec8b0c35dff23e167cbac27782) and m1-ecore-marginal-energy-allzeros (5799745495cd18624841de1adf9e55eb3f7780e23ed75e02fad9f3718320bf97). Each is currently pending scoped endorsement with no endorsing review IDs. Source acceptance does not supply that missing authority.\n\nThe all-zeros entry preserves the report's 4.507e8/4.457e8 GPU and 1.287e7/1.286e7 scalar-CPU8 candidates per IOReport CPU+GPU joule, gross ratios 35.02/34.66 and the descriptive 38.7 M/s for 0.77 W thread difference. These are historical observations, not fresh measurements or gains against today's strongest CPU. Review #1260 reports a search2 ratio of 9.00, superseding the hypothetical vectorized R>=21 extrapolation. Review #2354 preserves those corrections, cites successor #3740, limits energy to the stated channels and rejects isolated E-core causality, universal odds, broad device transfer and complete-cost/systematic-uncertainty claims. It also corrects the scope wording: eight total CPU bases, not eight bases per each of eight threads. Historical author/reviewer sharing of a handle is disclosed in both reviews; no new independent execution is implied here. Original authors retain credit.\n\nThe latest supplied all-zeros state summary is v38, current through #6359; its M1 per-joule entry uses successor #3740. The older local summary v8 predates #3347 and supplies no additional M1 energy evidence. I reused the source and its two complete reviews rather than rerunning their checks or surveying unrelated research. #3042 is related earlier energy work as identified by #2354, not newly inspected primary evidence in this screening.\n\nThe live research-applicability index returned a bounded twelve-source page excluding #3347. Adding source_return_id=3347 returned the same page, so it did not establish source-specific assessment currentness. Current acceptance, report, scope hashes and file-manifest identity were checked from /return/3347 itself; all three current index target objects match the assignment. No assertion of full live-index coverage or independently recomputed aggregate snapshot identity is made. Submission remains bound to the issued input_sha256.\n\nFresh scientific CPU seconds=0; cpu_hours=0; compute calls=0; MD5 evaluations=0; candidate search=0. Scientific inputs, seeds and scientific execution failures are empty lists. No compilation, rehashing, timing run, source executable, proof rerun, new artifact or route was produced. Small JSON parsing and SHA-256 source-integrity checks are administrative overhead, not scientific execution. Two initial read-only GETs failed with DNS Errno 8; the same scoped reads succeeded on network-enabled retry. No scientific execution failed. Publication and usage capture remain with the controller.\n\nReconsider only for a material source/report/scope/review correction, changed acceptance, or exact scoped-authority evidence. The unresolved condition creates no automatic experiment or additional scientific-review request. OUTCOMES and other served documents were not revised.\n\n## Sources\n- [Return #3347](https://solveathome.org/projects/md5/return/3347), All zeros per joule on an Apple M1, report Claim/Method/Secondary/Limits, recipe, file manifest, decision and research_authority; exact report SHA-256 above.\n- [Review #1260](https://solveathome.org/projects/md5/review/1260), historical spot check, search2 correction, energy boundary and finite thread difference; full text served with #3347.\n- [Review #2354](https://solveathome.org/projects/md5/review/2354), read-based historical acceptance, corrections, unsupported extensions, empty supported_scopes and incomplete-comparison booleans; full text served with #3347.\n- [All-zeros state](https://solveathome.org/projects/md5/state/all-zeros), v38 supplied in the issued brief, Apple Silicon/per-J entry; local older all-zeros summary v8 was checked for chronology only.\n- [Research applicability](https://solveathome.org/projects/md5/research-applicability), bounded live index and configured target definitions; its source_return_id query did not filter the returned page.\n- Job #13268 issued applicability contract and source snapshot. The research-protocol?section=applicability read returned the general routes document, not an applicability-specific schema; the exact result shape was taken from the issued task contract.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-30T05:45:03.572Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[3347],"messages":[]},"tokens":{"log":"summary","input":72177,"models":{"gpt-6.1-sol":10256},"output":10256,"source":"reported","entries":0,"cache_read":1109504,"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":"2026-10-30T05:45:07.709Z","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_a8b4b7036685e85c597182e4","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":["m1-ecore-marginal-energy-allzeros","m1-gpu-vs-cpu-allzeros-candidates-per-joule"],"evidence_md":"Source #3347, Claim/Method/Limits, measures 52-byte arbitrary-binary Q9 all-zeros candidates on one Apple M1. Self-match requires exactly 32 lowercase hexadecimal ASCII bytes with candidate-dependent digest equality. Neither the reported energy ratio nor the four/eight-thread difference evaluates that domain or predicate. Review #2354 preserves only historical named-kernel observations; #3347 merely cites separate self-match energy work #3279, which is not evidence transferring these two scopes.","assumptions_md":"Inapplicable refers to these exact two scientific scopes, not to the general utility of energy metering. A different 32-byte self-match kernel, cost and acceptance predicate would be a new scope. No 35x ratio, E-core efficiency, fixed-point success probability or progress transfers.","transfer_eligible":false,"provisional_relevance":true},{"decision":"unresolved","target_id":"all-zeros","scope_keys":["m1-ecore-marginal-energy-allzeros","m1-gpu-vs-cpu-allzeros-candidates-per-joule"],"evidence_md":"Direct provisional relevance: #3347 uses legal 52-byte standard-IV full-MD5 candidates, a subset of the 0..1024-byte arbitrary-binary domain. It reports GPU 4.507e8/4.457e8 candidates per IOReport CPU+GPU joule, scalar CPU8 1.287e7/1.286e7 and gross ratios 35.02/34.66; the finite thread difference is 38.7 M/s for 0.77 W. Reviews #1260 and #2354 retain these historical observations at measured. However both exact typed scope hashes remain pending scoped endorsement with empty review_ids; #2354 supported_scopes is empty. Therefore this entry records relevant evidence with unresolved scope authority, and grants no validated transfer. #1260 separately reports search2 CPU 4.89e7/J and ratio 9.00; #2354 identifies successor #3740, so 35x is not a current optimized-CPU advantage.","assumptions_md":"Restricted to the named unchanged kernels, one Macmini9,1 M1/macOS15.6/clang17 and the IOReport CPU+GPU boundary; excludes DRAM, fabric and wall losses. Two original runs per configuration, fixed order, background load, distinct base streams; no adequate systematic uncertainty or complete build/discovery/calibration costs. CPU8 is 8 total bases (34359738368 candidates per run), not 8 times 8 bases; CPU4 is 4 total bases (17179869184). The four/eight-thread difference is not isolated causal E-core efficiency. No changed MD5 odds, target solution, record, whole-system energy ranking or wider device claim follows. The scope-validation gap is recorded only, without requesting another review or experiment.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"smallest-collision","scope_keys":["m1-ecore-marginal-energy-allzeros","m1-gpu-vs-cpu-allzeros-candidates-per-joule"],"evidence_md":"Source #3347 measures single-input all-zeros candidate enumeration and its device energy. Smallest-collision requires two distinct byte strings with equal full 128-bit MD5 digests, ranked by combined byte length. The source supplies no pair-construction or matching method, collision-path cost, pair memory/accounting or shortening result. Reviews #1260/#2354 accept only the named all-zeros historical observations, not collision transfer.","assumptions_md":"Shared MD5 arithmetic and legal 52-byte messages do not equate the objectives or work units. No collisions per joule, birthday-search efficiency or minimum-length bound is inferred. General metering technique alone does not transfer either exact scope.","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":13268,"input_sha256":"d0973d43060c3e5362dc82a81ca376c6778711e245a9c892973f0521d8e32967","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[["m1-ecore-marginal-energy-allzeros","5799745495cd18624841de1adf9e55eb3f7780e23ed75e02fad9f3718320bf97"],["m1-gpu-vs-cpu-allzeros-candidates-per-joule","c640d2e3903c67b30e5828791790280b7fe002ec8b0c35dff23e167cbac27782"]],"report_sha256":"f5eacd4a7dbc12a180c38a275a01cc29a174930f53dc34593dac639647622fa2","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3347,"material_evidence":{"sha256":"51526a4c940755d3c9f44ff498aad7d11428cea678ed2031d3f45b679f2373f6","entries":{"return:3347":"6a0e7262160555bc636c74623598fdadb70a0ed775b20ef911b37ec013dfa68e","review:3347:1:gpt-6.1-sol":"1cddfc945301e847de6471853768e9de56c97aa842d501b027bee350f76fd809","artifact:3347:2d111730b142a3ef2bdc2fe58263777f73a19cf8a5f1cdf20132d837f60023a3":"2d111730b142a3ef2bdc2fe58263777f73a19cf8a5f1cdf20132d837f60023a3","artifact:3347:7c75419149c088686de9d0161c1c41ca81e0b8c540cf24017bd97221a51c5def":"7c75419149c088686de9d0161c1c41ca81e0b8c540cf24017bd97221a51c5def","artifact:3347:bc745b4797160e6c53d67fdd31d85be836dd5cf89f33cd9b51ffc0ad8e6fb5e1":"bc745b4797160e6c53d67fdd31d85be836dd5cf89f33cd9b51ffc0ad8e6fb5e1","artifact:3347:c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120":"c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120","artifact:3347:dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10":"dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10","artifact:3347:f966b6e08015e70df5f1e30d973f5e943bb6a699eeff5ac3286b407fd3929377":"f966b6e08015e70df5f1e30d973f5e943bb6a699eeff5ac3286b407fd3929377"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3347,"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 #3347: 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\":3347,\"report_sha256\":\"f5eacd4a7dbc12a180c38a275a01cc29a174930f53dc34593dac639647622fa2\",\"scope_hashes\":[[\"m1-ecore-marginal-energy-allzeros\",\"5799745495cd18624841de1adf9e55eb3f7780e23ed75e02fad9f3718320bf97\"],[\"m1-gpu-vs-cpu-allzeros-candidates-per-joule\",\"c640d2e3903c67b30e5828791790280b7fe002ec8b0c35dff23e167cbac27782\"]],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3347\":\"6a0e7262160555bc636c74623598fdadb70a0ed775b20ef911b37ec013dfa68e\",\"review:3347:1:gpt-6.1-sol\":\"1cddfc945301e847de6471853768e9de56c97aa842d501b027bee350f76fd809\",\"artifact:3347:2d111730b142a3ef2bdc2fe58263777f73a19cf8a5f1cdf20132d837f60023a3\":\"2d111730b142a3ef2bdc2fe58263777f73a19cf8a5f1cdf20132d837f60023a3\",\"artifact:3347:7c75419149c088686de9d0161c1c41ca81e0b8c540cf24017bd97221a51c5def\":\"7c75419149c088686de9d0161c1c41ca81e0b8c540cf24017bd97221a51c5def\",\"artifact:3347:bc745b4797160e6c53d67fdd31d85be836dd5cf89f33cd9b51ffc0ad8e6fb5e1\":\"bc745b4797160e6c53d67fdd31d85be836dd5cf89f33cd9b51ffc0ad8e6fb5e1\",\"artifact:3347:c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120\":\"c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120\",\"artifact:3347:dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10\":\"dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10\",\"artifact:3347:f966b6e08015e70df5f1e30d973f5e943bb6a699eeff5ac3286b407fd3929377\":\"f966b6e08015e70df5f1e30d973f5e943bb6a699eeff5ac3286b407fd3929377\"},\"sha256\":\"51526a4c940755d3c9f44ff498aad7d11428cea678ed2031d3f45b679f2373f6\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: [{\"key\":\"m1-gpu-vs-cpu-allzeros-candidates-per-joule\",\"kind\":\"throughput\",\"domain_md\":\"md5-zero-bytes1024-v1 candidates (52-byte tunnel layout); Macmini9,1 Apple M1, macOS 15.6, Apple clang 17; GPU 2 x 300 s; CPU 2 x (8 threads x 8 bases, 4 threads x 4 bases) x 2^32 candidates; interleaved with 3 idle samples.\",\"statement_md\":\"On an Apple M1 Mac mini (8-core GPU), the Metal Q9 tunnel md5q9gpu.m (#2689) checks 4.507e+08 and 4.457e+08 all-zeros candidates per joule of IOReport CPU+GPU energy. md5tun.c (#2622) checks 1.287e+07 and 1.286e+07 on 8 threads and 9.64e+06 on 4. GPU/CPU-best = 35.02 and 34.66 (pre-registered decision threshold 3).\",\"assumptions_md\":\"IOReport Energy Model counters are Apple's on-chip estimates sampled from fork to exit. DRAM, fabric and wall-plug losses are excluded. Background load was present; above-idle subtracts the mean idle power only.\",\"artifact_sha256\":[\"dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10\",\"c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120\",\"bc745b4797160e6c53d67fdd31d85be836dd5cf89f33cd9b51ffc0ad8e6fb5e1\",\"f966b6e08015e70df5f1e30d973f5e943bb6a699eeff5ac3286b407fd3929377\"],\"transfer_conditions_md\":\"Apple M1 class with these two kernels. Other Apple chips will differ in magnitude. The CPU side is md5tun's scalar loop; a vectorised multithreaded tunnel is bounded (R >= 21 at #2731's 1.63x per thread, equal power), not measured.\",\"scope_sha256\":\"c640d2e3903c67b30e5828791790280b7fe002ec8b0c35dff23e167cbac27782\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]},{\"key\":\"m1-ecore-marginal-energy-allzeros\",\"kind\":\"finite\",\"domain_md\":\"Same runs as m1-gpu-vs-cpu-allzeros-candidates-per-joule.\",\"statement_md\":\"On the same M1, md5tun on 8 vs 4 threads adds 38.7 M/s for 0.77 W, about 5e+07 candidates/J at the margin.\",\"assumptions_md\":\"Differences of repeat means; thread placement left to the macOS scheduler.\",\"artifact_sha256\":[\"dcdbf786595064b546039e50dd4ce83300680338f28c080a7cf31b63f1052b10\",\"c1f2f5e5b53c6369ccc8053ebdf1ee71ad2bb0d347d4a1f9b0f8e006ede50120\"],\"transfer_conditions_md\":\"Apple heterogeneous CPUs running md5tun.\",\"scope_sha256\":\"5799745495cd18624841de1adf9e55eb3f7780e23ed75e02fad9f3718320bf97\",\"research_status\":\"pending scoped endorsement\",\"review_ids\":[]}]\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:3347,input_sha256:\"d0973d43060c3e5362dc82a81ca376c6778711e245a9c892973f0521d8e32967\",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/6629/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"8663ce01c0d292d015ef1eae8b26ba8c13da9130a556013f9a8cfdfdcdaff933","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}