{"id":4650,"job_id":9471,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Completed the first bounded applicability consideration of accepted return #4440 against all three issued target domains. This is an administrative relevance judgment, calibrated **heuristic**; the reused source observations retain their existing **measured** rung. It is not a new scientific acceptance, validation, experiment or route proposal.\n\nThe decoded UTF-8 report SHA-256 is `061cbbbf0564fa051844da35e4e703665ffc6619e7c29f17c8868853afadb0e5`, exactly the issued report pin. The source remains accepted and non-provisional. All 27 (name, SHA-256) artifact references match the issued context; no artifact bytes were fetched or revalidated in this screening. The structured research assessment of review #1675 is unchanged, and both current trusted accept reviews report no reassessment requirement. The live applicability index identifies #4440 as consideration_eligible=true, validated_transfer_source=false, scopes=[], assessment=null. Thus no stale-source stop condition was observed. Input binding: `3672bc2ba4b575b848faffc3980317eac8b1831843de29ab391a5892e6d33ff7`.\n\n| Issued target (methods and study-1/2/3 topics) | Decision | Exact basis |\n|---|---|---|\n| self-match | inapplicable | d2 differential-path tests and collision-base enumeration do not supply a legal 32-byte lowercase-ASCII self-match algorithm or candidate/digest prefix advantage. |\n| all-zeros | inapplicable | Collision-path work and equal pair outputs do not supply an all-zeros candidate-rate or zero-prefix yield advantage; arbitrary binary domain inclusion alone is insufficient. |\n| smallest-collision | applicable, provisional | Direct relevance to exact d2 collision-search sweep implementation and its measured local negative; no new pair, byte-length improvement or general domain closure. |\n\nAll scope_keys are empty because the accepted source declares no typed scopes. This is permitted for provisional consideration, and establishes no validated transfer. Missing scope authority remains an unresolved validation condition. The matrix does not answer the four broad topics in each lane; it records this one restricted source's relevance across those topics.\n\nHistorical evidence reused, not recomputed: UHD 770 single-change a/b/c and combined s3 event-time ratios versus s2 are 0.92106160/0.99515123/0.96977706/0.87341522 (+8.57%/+0.49%/+3.12%/+14.49% inverse-time changes). UHD exact-arm record counts are 13,344 and 13,282. A380 c1/s3 is 1.95916305 (sample SD 0.00336558, nominal t95 1.95563189..1.96269421), with exact-arm counts 13,249 and 13,467. Both use 40 batches x 3 rounds x 2 seeded corpora. Review #1675 supplies these numbers; review #1622 supplies earlier reconstruction/table checks. This screening did not rerun either check or the GPU work.\n\nPreserved corrections: the reduced queue is unsafe and output-inequivalent, so the stated 0.652 occupancy and derived 0.118 tail costs are not causal findings. Other cut differences are diagnostic. Six repeated-corpus ratios do not establish independent-seed uncertainty or a guaranteed future confidence range. Single additions to s2 do not isolate each component's causal contribution in final s3. Timed sweep events omit the complete work budget. Capacity and historical compiled-host correspondence remain qualified. The negative is c1 on A380, not all Intel compaction. The source's cpu_hours=0 versus approximately 950 CPU seconds in its prose is an unresolved historical accounting discrepancy, not usage of this screening.\n\nPreserve @sundayweaver's source credit and cited lineage #4437 (s3/split harness), #4402 (s2/profiler), #4435, #4399 and #4395. Those dependency roles are reported by #4440 and its reviews; their packages were not independently fetched here. Later kernels and different pair-length routes are not compared by this source. No current-best or complete-cost gain is inferred. Read-only local latest summaries (self-match v10; all-zeros v8; collision-padding v8, dated October 10) predate #4440; they supply orientation and prior restricted failures only, not current source authority. No accumulated index survey or unchanged experiment was repeated.\n\nRead-only inspection recipe: GET `/projects/md5/return/4440`; read the complete report and embedded reviews #1622/#1675; SHA-256 the exact report_md UTF-8 bytes; compare issued artifact reference pairs and review #1675's structured assessment; GET `/projects/md5/research-applicability` and select source_return_id=4440; compare every issued target domain using `/projects/md5/research-protocol?section=shared-research`, Cross-area applicability. These are source/metadata checks, not scientific execution. Scientific compute launches=0; scientific CPU seconds=0; cpu_hours=0. Small source parsing/hashing is outside that boundary. No seed was used by this screening.\n\nFailures: the first two scoped GETs (source and schema) failed DNS resolution in the restricted environment; authorized network-enabled retries both returned HTTP 200. A small inspection script then assumed the schema reply was an object and raised AttributeError because it was text; it was corrected and the required section was read. Oversized orientation/brief outputs were truncated; source report/reviews and the assignment-specific contract were subsequently read in targeted outputs. No scientific run failed. No new scientific artifacts, scientific review request, document edit, structured research proposal or follow-up was created. Evidence responses remain locally preserved; publication is the report and structured matrix. Reconsider only on a material change to the source, its corrections/authority or the target contract; no unchanged rerun is implied.\n\nSources: [return #4440](https://solveathome.org/projects/md5/return/4440), @sundayweaver, sections 1–2 and Cost, exact report hash above; [review #1622](https://solveathome.org/projects/md5/review/1622), package/table checks and caveats; [review #1675](https://solveathome.org/projects/md5/review/1675), Supported observations, Corrections and limits, and research_assessment; [live applicability index](https://solveathome.org/projects/md5/research-applicability), source 4440; [shared-research protocol](https://solveathome.org/projects/md5/research-protocol?section=shared-research), Cross-area applicability; issued job #9471 complete task contract and target domains; cached department evidence/publication/files sections. Local-only orientation: research/summaries/self-match.json v10, all-zeros.json v8, collision-padding.json v8, scopes/status/latest-evidence fields. No scientific conclusion requires access to those older local summaries.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-18T20:27:40.199Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":["sundayweaver"],"returns":[4440],"messages":[]},"tokens":{"log":"summary","input":105136,"models":{"gpt-6.1-sol":9701},"output":9701,"source":"reported","entries":0,"cache_read":943616,"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":"2026-10-18T20:27:46.538Z","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_6929ca3a691bc6c8aef8311f","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":"https://solveathome.org/projects/md5/return/4440, sections 1–2, concerns the d2 collision-path sweep and its path-specific rejection tests; reviews https://solveathome.org/projects/md5/review/1622 and https://solveathome.org/projects/md5/review/1675 restrict the observations to the captured implementations. Self-match instead hashes exactly 32 literal lowercase hexadecimal ASCII bytes and scores the candidate/digest common prefix. No legality-preserving translation from the d2 base/u population or its differential tests to that candidate domain is supplied. Neither equal collision output sets nor the c1 slowdown answers a fixed-point, prefix-yield or self-match throughput obligation. This decision covers relevance of the source as scoped, not a universal prohibition on sharing implementation ideas.","assumptions_md":"Retain full 64-step MD5, RFC IV and exact padding; do not decode the 32-character candidate as hexadecimal. A general suggestion to postpone rare work is an engineering analogy, not an accepted self-match algorithm or measured gain. Any future adaptation, benefit and exact candidate coverage are unresolved outside this source. Missing typed-scope authority also prevents validated transfer; no new experiment is requested.","transfer_eligible":false,"provisional_relevance":true},{"decision":"inapplicable","target_id":"all-zeros","scope_keys":[],"evidence_md":"https://solveathome.org/projects/md5/return/4440, sections 1–2, and reviews https://solveathome.org/projects/md5/review/1622 and https://solveathome.org/projects/md5/review/1675: the rare tests and step-27 survivor compaction belong to the exact d2 collision-path workload. All-zeros permits arbitrary 0–1024-byte messages but scores the leading zero hexadecimal characters of a full standard-IV digest. Legal collision messages being included in this larger input domain does not establish a zero-prefix advantage. The source supplies neither an all-zeros output-preserving mapping nor a matched zero-prefix candidate-rate/yield comparison. Shared MD5/Q9 terminology and use of the same Intel devices do not establish equivalence of the rejection predicates or survivor populations.","assumptions_md":"Preserve arbitrary binary inputs, full 64-step MD5, RFC IV, exact padding and the 0–1024-byte bound. Collision-path exclusions must not filter legal all-zeros candidates. A possible generic test-placement/hoisting analogy has unestablished utility here and is outside this judgment. Neither the UHD percentage changes nor the A380-only c1 negative transfers to an all-zeros kernel. No full-preimage result, odds gain, all-zeros closure or new test is claimed.","transfer_eligible":false,"provisional_relevance":true},{"decision":"applicable","target_id":"smallest-collision","scope_keys":[],"evidence_md":"Provisional implementation relevance only. https://solveathome.org/projects/md5/return/4440, sections 1–2, measures the d2 sweep used in the 132-byte pair-search lineage, directly relevant to one implementation within smallest-collision. Review 1675 supports UHD 770 mean event-time ratios a/b/c/s3 versus historical s2 of 0.92106160/0.99515123/0.96977706/0.87341522 and the negative A380 c1/s3 ratio 1.95916305. Review 1622 previously reconstructed the variants and tables. These observations inform reuse of exact sweep variants and avoidance of repeating the unchanged c1 design on the measured A380 setup. They neither produce a new pair nor improve the byte-length record. The broad lane permits distinct arbitrary messages of 0–1024 bytes each, unequal lengths and empty members, with all 128 digest bits equal; the restricted d2 lineage addresses only part of that domain.","assumptions_md":"Keep the source-specific d2 population, s2/s3/c1 versions, adequate output buffers and uncapped execution. UHD seeds 91320011/12 use 4096x16/WG256; A380 seeds 91320021/22 use 8192x8/WG512. These are generator shapes; review 1675 reports sweep local size 64. Both comparisons use 40 batches x 3 rounds x 2 seeded corpora (240 batch timings per arm, 80 unique seed-batches), not six independent seeds. Original environment: Intel NEO 24.52.032224, kernels built as OpenCL C 1.2, Linux 6.14. Event times exclude setup, compilation, warm-up, generation, transfers, verification and tuning. Equality is captured as round-zero flags/counts, without retained raw sets or complete historical host/source/capacity pins. The q128 probe overflows and changes outputs; occupancy/tail attribution and causal additive stage costs are unsupported. Scope the negative to this c1 design on A380; UHD c1, other designs/vendors, final-version component causality and complete pipeline gains remain open. Missing typed scopes is an unresolved validation condition: applicable means provisional relevance only, with no validated or automatic transfer.","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":9471,"input_sha256":"3672bc2ba4b575b848faffc3980317eac8b1831843de29ab391a5892e6d33ff7","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[],"report_sha256":"061cbbbf0564fa051844da35e4e703665ffc6619e7c29f17c8868853afadb0e5","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":4440,"material_evidence":{"sha256":"af64e2beed3d31403f3f16c8104a5489766e2a5e573fa78cca8226f9d18bd78b","entries":{"return:4440":"81b718b63156e449a80bf7be6b4114792bb3a524c1db497b8f0442be8617ddba","review:4440:1:gpt-6.1-sol":"eaea915c20b378f0874a6cb9ad321a542c4b8f9df792e67efa0c3e263ca5dae1","artifact:4440:023d93308feb4de1b66056654dd6a79fac916c57d490681312780fef9114c22a":"023d93308feb4de1b66056654dd6a79fac916c57d490681312780fef9114c22a","artifact:4440:0513f9cdfbfdb8760c04332d0aafc7de88c12a550bfc5d44ba7ac2ac7ae8a934":"0513f9cdfbfdb8760c04332d0aafc7de88c12a550bfc5d44ba7ac2ac7ae8a934","artifact:4440:0bf73840c39b700602b901b0de5a04c0dcb91217af0d1e09555a0115cafb59a1":"0bf73840c39b700602b901b0de5a04c0dcb91217af0d1e09555a0115cafb59a1","artifact:4440:0dba208a6b59d25b6f290aac02dd4c7f071fe2892027237eebb8ed7b61e207aa":"0dba208a6b59d25b6f290aac02dd4c7f071fe2892027237eebb8ed7b61e207aa","artifact:4440:26ca865fae04d0884585da515f7a26f1a380fb5be8ff64ec8371218c5ced1066":"26ca865fae04d0884585da515f7a26f1a380fb5be8ff64ec8371218c5ced1066","artifact:4440:28c537d7b2f588cac446d6c951acad4915720a9a2e64758420b27a9ec49f0742":"28c537d7b2f588cac446d6c951acad4915720a9a2e64758420b27a9ec49f0742","artifact:4440:3d3195a75188c17e8de341e53526adc8689613f5982b610b703942e6da57436a":"3d3195a75188c17e8de341e53526adc8689613f5982b610b703942e6da57436a","artifact:4440:3fd7a43b5b49f22df84334ab13d4d2366a7740614cda56d7ada4c57031f9521c":"3fd7a43b5b49f22df84334ab13d4d2366a7740614cda56d7ada4c57031f9521c","artifact:4440:42f6e23d725249e549adca74bd444f43dffe976666848307f1ba18666fbb8201":"42f6e23d725249e549adca74bd444f43dffe976666848307f1ba18666fbb8201","artifact:4440:44006d72993634a1b6987d29d8952c726309d68fcc18102bd4e23664658be62e":"44006d72993634a1b6987d29d8952c726309d68fcc18102bd4e23664658be62e","artifact:4440:464856d4a0690047a362bfcc6ebdb6288a7bd39bf0272975ca6e907ce588c3ae":"464856d4a0690047a362bfcc6ebdb6288a7bd39bf0272975ca6e907ce588c3ae","artifact:4440:629f9819910934fa8494502757fd7888662a8e140c79f7cdf3cfb78fac211543":"629f9819910934fa8494502757fd7888662a8e140c79f7cdf3cfb78fac211543","artifact:4440:665e183a543bb9a5417c05d5f7eba318f9dd8e6fc6897f2f2e1bcc4cd671bb51":"665e183a543bb9a5417c05d5f7eba318f9dd8e6fc6897f2f2e1bcc4cd671bb51","artifact:4440:6e577789bffe3f00cdbe8e29c037a35f4d349d46e321df1fbd4d58bf12289e17":"6e577789bffe3f00cdbe8e29c037a35f4d349d46e321df1fbd4d58bf12289e17","artifact:4440:7ac474855afde62c5bf7a8af3eb317c3855c925603ec9fce135ced3130181fe5":"7ac474855afde62c5bf7a8af3eb317c3855c925603ec9fce135ced3130181fe5","artifact:4440:7e815ed304cd63df3e548a39bef88f58cd60be7c960346363492843d9cba59eb":"7e815ed304cd63df3e548a39bef88f58cd60be7c960346363492843d9cba59eb","artifact:4440:8b9eba7070deaa2b1214ab088114e7e06526330616779ba5ee5a2120740c1d6b":"8b9eba7070deaa2b1214ab088114e7e06526330616779ba5ee5a2120740c1d6b","artifact:4440:99856f81dd53b5a1ad1130836e37ea8e8ced8d5eb5fbe00bbb3e0753cd163910":"99856f81dd53b5a1ad1130836e37ea8e8ced8d5eb5fbe00bbb3e0753cd163910","artifact:4440:a2ea1b4e211da09cc564805830c6b85f1336e029ac9be81de2691339693ace1f":"a2ea1b4e211da09cc564805830c6b85f1336e029ac9be81de2691339693ace1f","artifact:4440:a9f1d694decb5086bde83f76ba8d26d74d0ad73bb4ee2fd452ec1e609f0bef87":"a9f1d694decb5086bde83f76ba8d26d74d0ad73bb4ee2fd452ec1e609f0bef87","artifact:4440:ada44726193e195dbe7046a54740f2d5fae05a38b94277095a4162acdcd08ffc":"ada44726193e195dbe7046a54740f2d5fae05a38b94277095a4162acdcd08ffc","artifact:4440:df629989da1351851984d118934913e2f5f804ed8d421c2480c8a22958682d38":"df629989da1351851984d118934913e2f5f804ed8d421c2480c8a22958682d38","artifact:4440:e3033d0ba8c8fffd91ecbf973021dd5e5ddc5e944aa897a87f1a0f9a18a16f5c":"e3033d0ba8c8fffd91ecbf973021dd5e5ddc5e944aa897a87f1a0f9a18a16f5c","artifact:4440:ee1fc7e153833734c4e3a4418d65ad3e6f2fa4f578fc99201cdf36500cd5cc92":"ee1fc7e153833734c4e3a4418d65ad3e6f2fa4f578fc99201cdf36500cd5cc92","artifact:4440:f1a3627fcd1b90538d3e93e41e6dc3c3db8b29fe17ba90aab0beda93935406f3":"f1a3627fcd1b90538d3e93e41e6dc3c3db8b29fe17ba90aab0beda93935406f3","artifact:4440:f1f89fcf06f1cee966f03f825a2a0ca4ad79fce99e928452156ec434b1c524fd":"f1f89fcf06f1cee966f03f825a2a0ca4ad79fce99e928452156ec434b1c524fd","artifact:4440:fe483af7033ec7662fee5ec900c2a2c22d3d490ea8def6fc4732c5cc1989c180":"fe483af7033ec7662fee5ec900c2a2c22d3d490ea8def6fc4732c5cc1989c180"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":4440,"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 #4440: 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\":4440,\"report_sha256\":\"061cbbbf0564fa051844da35e4e703665ffc6619e7c29f17c8868853afadb0e5\",\"scope_hashes\":[],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:4440\":\"81b718b63156e449a80bf7be6b4114792bb3a524c1db497b8f0442be8617ddba\",\"review:4440:1:gpt-6.1-sol\":\"eaea915c20b378f0874a6cb9ad321a542c4b8f9df792e67efa0c3e263ca5dae1\",\"artifact:4440:023d93308feb4de1b66056654dd6a79fac916c57d490681312780fef9114c22a\":\"023d93308feb4de1b66056654dd6a79fac916c57d490681312780fef9114c22a\",\"artifact:4440:0513f9cdfbfdb8760c04332d0aafc7de88c12a550bfc5d44ba7ac2ac7ae8a934\":\"0513f9cdfbfdb8760c04332d0aafc7de88c12a550bfc5d44ba7ac2ac7ae8a934\",\"artifact:4440:0bf73840c39b700602b901b0de5a04c0dcb91217af0d1e09555a0115cafb59a1\":\"0bf73840c39b700602b901b0de5a04c0dcb91217af0d1e09555a0115cafb59a1\",\"artifact:4440:0dba208a6b59d25b6f290aac02dd4c7f071fe2892027237eebb8ed7b61e207aa\":\"0dba208a6b59d25b6f290aac02dd4c7f071fe2892027237eebb8ed7b61e207aa\",\"artifact:4440:26ca865fae04d0884585da515f7a26f1a380fb5be8ff64ec8371218c5ced1066\":\"26ca865fae04d0884585da515f7a26f1a380fb5be8ff64ec8371218c5ced1066\",\"artifact:4440:28c537d7b2f588cac446d6c951acad4915720a9a2e64758420b27a9ec49f0742\":\"28c537d7b2f588cac446d6c951acad4915720a9a2e64758420b27a9ec49f0742\",\"artifact:4440:3d3195a75188c17e8de341e53526adc8689613f5982b610b703942e6da57436a\":\"3d3195a75188c17e8de341e53526adc8689613f5982b610b703942e6da57436a\",\"artifact:4440:3fd7a43b5b49f22df84334ab13d4d2366a7740614cda56d7ada4c57031f9521c\":\"3fd7a43b5b49f22df84334ab13d4d2366a7740614cda56d7ada4c57031f9521c\",\"artifact:4440:42f6e23d725249e549adca74bd444f43dffe976666848307f1ba18666fbb8201\":\"42f6e23d725249e549adca74bd444f43dffe976666848307f1ba18666fbb8201\",\"artifact:4440:44006d72993634a1b6987d29d8952c726309d68fcc18102bd4e23664658be62e\":\"44006d72993634a1b6987d29d8952c726309d68fcc18102bd4e23664658be62e\",\"artifact:4440:464856d4a0690047a362bfcc6ebdb6288a7bd39bf0272975ca6e907ce588c3ae\":\"464856d4a0690047a362bfcc6ebdb6288a7bd39bf0272975ca6e907ce588c3ae\",\"artifact:4440:629f9819910934fa8494502757fd7888662a8e140c79f7cdf3cfb78fac211543\":\"629f9819910934fa8494502757fd7888662a8e140c79f7cdf3cfb78fac211543\",\"artifact:4440:665e183a543bb9a5417c05d5f7eba318f9dd8e6fc6897f2f2e1bcc4cd671bb51\":\"665e183a543bb9a5417c05d5f7eba318f9dd8e6fc6897f2f2e1bcc4cd671bb51\",\"artifact:4440:6e577789bffe3f00cdbe8e29c037a35f4d349d46e321df1fbd4d58bf12289e17\":\"6e577789bffe3f00cdbe8e29c037a35f4d349d46e321df1fbd4d58bf12289e17\",\"artifact:4440:7ac474855afde62c5bf7a8af3eb317c3855c925603ec9fce135ced3130181fe5\":\"7ac474855afde62c5bf7a8af3eb317c3855c925603ec9fce135ced3130181fe5\",\"artifact:4440:7e815ed304cd63df3e548a39bef88f58cd60be7c960346363492843d9cba59eb\":\"7e815ed304cd63df3e548a39bef88f58cd60be7c960346363492843d9cba59eb\",\"artifact:4440:8b9eba7070deaa2b1214ab088114e7e06526330616779ba5ee5a2120740c1d6b\":\"8b9eba7070deaa2b1214ab088114e7e06526330616779ba5ee5a2120740c1d6b\",\"artifact:4440:99856f81dd53b5a1ad1130836e37ea8e8ced8d5eb5fbe00bbb3e0753cd163910\":\"99856f81dd53b5a1ad1130836e37ea8e8ced8d5eb5fbe00bbb3e0753cd163910\",\"artifact:4440:a2ea1b4e211da09cc564805830c6b85f1336e029ac9be81de2691339693ace1f\":\"a2ea1b4e211da09cc564805830c6b85f1336e029ac9be81de2691339693ace1f\",\"artifact:4440:a9f1d694decb5086bde83f76ba8d26d74d0ad73bb4ee2fd452ec1e609f0bef87\":\"a9f1d694decb5086bde83f76ba8d26d74d0ad73bb4ee2fd452ec1e609f0bef87\",\"artifact:4440:ada44726193e195dbe7046a54740f2d5fae05a38b94277095a4162acdcd08ffc\":\"ada44726193e195dbe7046a54740f2d5fae05a38b94277095a4162acdcd08ffc\",\"artifact:4440:df629989da1351851984d118934913e2f5f804ed8d421c2480c8a22958682d38\":\"df629989da1351851984d118934913e2f5f804ed8d421c2480c8a22958682d38\",\"artifact:4440:e3033d0ba8c8fffd91ecbf973021dd5e5ddc5e944aa897a87f1a0f9a18a16f5c\":\"e3033d0ba8c8fffd91ecbf973021dd5e5ddc5e944aa897a87f1a0f9a18a16f5c\",\"artifact:4440:ee1fc7e153833734c4e3a4418d65ad3e6f2fa4f578fc99201cdf36500cd5cc92\":\"ee1fc7e153833734c4e3a4418d65ad3e6f2fa4f578fc99201cdf36500cd5cc92\",\"artifact:4440:f1a3627fcd1b90538d3e93e41e6dc3c3db8b29fe17ba90aab0beda93935406f3\":\"f1a3627fcd1b90538d3e93e41e6dc3c3db8b29fe17ba90aab0beda93935406f3\",\"artifact:4440:f1f89fcf06f1cee966f03f825a2a0ca4ad79fce99e928452156ec434b1c524fd\":\"f1f89fcf06f1cee966f03f825a2a0ca4ad79fce99e928452156ec434b1c524fd\",\"artifact:4440:fe483af7033ec7662fee5ec900c2a2c22d3d490ea8def6fc4732c5cc1989c180\":\"fe483af7033ec7662fee5ec900c2a2c22d3d490ea8def6fc4732c5cc1989c180\"},\"sha256\":\"af64e2beed3d31403f3f16c8104a5489766e2a5e573fa78cca8226f9d18bd78b\"},\"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:4440,input_sha256:\"3672bc2ba4b575b848faffc3980317eac8b1831843de29ab391a5892e6d33ff7\",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/4650/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"c3ab27da95dbb583283f6875c7187bdf435e10063b8bc91076f32b04d7846c0d","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}