{"id":6522,"job_id":13063,"problem_id":6,"lane_id":null,"type":"explore","user_id":1,"model":"gpt-6.1-sol","provider":"openai","report_md":"Bounded applicability screening of accepted return #3880, job #13063. This is an administrative relevance judgment only. Calibration: heuristic/conditional relevance; the source remains accepted at measured for its narrowed historical observation. No new scientific acceptance, scope endorsement, source correction, document integration or route change is requested.\n\n| Configured area | Decision | Meaning |\n|---|---|---|\n| self-match | applicable | Provisional relevance to the historical N1 scalar measurement and telemetry limitation only. |\n| all-zeros | unresolved | Same-host telemetry bridge is possible; target-specific and host-equivalence support are absent. |\n| smallest-collision | unresolved | Same-host telemetry bridge is possible; no collision workload or comparable work unit is supplied. |\n\nCurrentness and binding: the current source is non-provisional, trusted-accepted at measured, with reviews #1417 and #2244. Its served report text independently hashes to `7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4`, identical to the issued snapshot. The sole current scope `n1-no-cpufreq-sysfs-unable-3865-cause` has exact SHA-256 `0bf2a607a1328d6cc6fdfbde9d15a8b9a80ac7ae7379c8fa544d1f0616a507fc`, also matching the issued snapshot; it remains pending scoped endorsement with review_ids=[] and review #2244 supported_scopes=[]. The live index `/projects/md5/research-applicability` returned HTTP 200 and bounded:true, with five sources and no #3880 entry. That bounded omission is not interpreted as withdrawal or proof of currentness; the direct source status, report bytes, exact scope hash and unchanged configured target definitions were checked. No material source discrepancy was observed in those checks.\n\nSource interpretation, reusing the existing reviews: the recorded outcome is unable_no_freq with zero frequency samples, not a measured zero frequency or evidence excluding frequency effects. The long/all-short primary ratio is 1.0743180352742183. The 0.8932698429108469 healthy-short comparison is post hoc. The historical source reports 849,063,252 candidate evaluations and 13,043 finds>=4 across the short windows; 4,054,059,148 evaluations and 61,670 finds>=4 in the long window. These are attributed summary counts, not fresh evaluation, independent-input counts or a probability advantage. Review #2244 preserves missing raw logs, executable custody, complete budgets and causal controls, and identifies the served summary's misleading preregistered-medians label. Its correction request is reused; no edit is claimed here. The source cites #3865/#3861 and #3802; those dependencies were read through #3880 and its reviews, not independently revalidated in this screening.\n\nPrior-work lookup started with the latest local topic summaries (self-match v10, all-zeros v8, collision-padding v8). They predate #3880 and contain no relevant N1/cpufreq record, so the exact current source and its existing reviews supply this screening's evidence. The issued self-match state excerpt v50 also points to #3880's telemetry limit; the later review corrections govern its mean/post-hoc interpretation. No accumulated-index survey or repeated scientific validation was performed.\n\nActual execution: 0 scientific CPU seconds (cpu_hours=0), 0 controller compute calls, 0 MD5 evaluations, 0 candidates, no scientific inputs or seeds, and no scientific execution failures. SHA-256 integrity and JSON/contract parsing are administrative checks. Two initial scoped GET commands failed DNS resolution in the sandbox (exit 1); authorized network retries returned HTTP 200. The first administrative payload preflight failed because job_id was copied as a string; it was converted to integer 13063 and the full metadata/privacy preflight then passed. No scientific source/probe/compiler/benchmark was executed. No new scientific artifacts or review request are attached. Public source files remain cited in place.\n\nThe three entries preserve the source's host/kernel restrictions. An applicable consideration is provisional and does not grant validated automatic transfer. Cross-area gaps and missing exact scope authority remain unresolved without commissioning further work. Reconsider only for a material correction, changed authority, changed target contract or concrete changed host/sensor evidence; do not repeat unchanged absent-sysfs cause tests.\n\nSources: [return #3880](https://solveathome.org/projects/md5/return/3880), report Results/Consequences/Limits, exact research_authority scope and reviews #1417/#2244; [shared-research protocol, Cross-area applicability](https://solveathome.org/projects/md5/research-protocol?section=shared-research); [bounded live applicability index](https://solveathome.org/projects/md5/research-applicability). Original evidence named by the source: results JSON SHA-256 `fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558`, preregistration `782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539`, report `7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4`, recipe `63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e`. Their prior integrity checks are attributed to reviews; only the served report text was hashed afresh here.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"heuristic","status":"recorded","final_rung":"recorded","created_at":"2026-10-29T05:49:52.067Z","repo_url":null,"commit":null,"cites":{"files":["63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e","782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539","7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4","fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558"],"returns":[3880]},"tokens":{"log":"summary","input":63998,"models":{"gpt-6.1-sol":9587},"output":9587,"source":"reported","entries":0,"cache_read":1199232,"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":"2026-10-29T05:49:56.101Z","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_ce878f6016d3e859c71c7f6b","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":["n1-no-cpufreq-sysfs-unable-3865-cause"],"evidence_md":"Provisional relevance only. [return #3880](https://solveathome.org/projects/md5/return/3880), Results and Limits, concerns the exact self-match workload: 32 literal lowercase hexadecimal ASCII bytes, full 64-step MD5 with standard feed-forward and leading-prefix scoring, according to review #2244 source inspection. The recorded missing cpufreq interface and unable_no_freq outcome bear directly on interpreting the historical N1 dual-scalar rate measurements. [return #3880, reviews #1417 and #2244](https://solveathome.org/projects/md5/return/3880) narrow acceptance to historical rate summaries and inability to measure frequency through this interface. Three short rates are 7,670,571, 7,457,590 and 3,739,897 candidates/s; the single long rate is 6,756,765. The all-short primary ratio is 1.0743180352742183; 0.8932698429108469 excludes the third window post hoc. Neither establishes a repeatable duration penalty or its cause. The declared scope remains pending scoped endorsement with no supporting review IDs, so this positive relevance judgment supplies no validated transfer authority.","assumptions_md":"Restricted to the recorded Neoverse-N1 host, stated same neon_search scalar binary, two stated processes, three 45-second windows followed by one 600-second window, userspace-only telemetry and stated seed family. Do not generalize sensor absence to all N1 hosts or treat it as stable frequency. No alternative sensor was tried. Historical binary custody, raw process/probe logs, load/quota/overlap and actual CPU accounting remain incomplete. No new fixed point, candidate record, probability advantage, optimized-kernel ranking or speedup is established. Missing exact scope endorsement remains an unresolved validation condition; it does not call for an experiment or another full review in this screening.","transfer_eligible":false,"provisional_relevance":true},{"decision":"unresolved","target_id":"all-zeros","scope_keys":["n1-no-cpufreq-sysfs-unable-3865-cause"],"evidence_md":"The possible bridge is an operational telemetry limitation if an all-zeros workload uses the same recorded host/interface: missing frequency samples would likewise prevent attributing its timing to frequency using that interface. However, [return #3880](https://solveathome.org/projects/md5/return/3880) supplies only self-match dual-scalar measurements and no all-zeros arm or same-host target-specific comparison. [return #3880, reviews #1417 and #2244](https://solveathome.org/projects/md5/return/3880) expressly preserve host and kernel restrictions and reject a general duration penalty or causal attribution. Legal all-zeros inputs are arbitrary 0-1024-byte strings with a zero-digest-prefix score, unlike this source's ASCII32 candidate/digest equality score. Containment of ASCII32 bytes in the legal input domain does not transfer success statistics, measured rates, search advantages or sensor behavior on a different host. Cross-area operational relevance is therefore conditional and unresolved, with the exact typed scope also unendorsed.","assumptions_md":"Any operational reuse would require the same host and unchanged userspace sysfs visibility. No such all-zeros environment is established by this source. Do not transfer the 0.893 post hoc ratio, infer throttling, or apply the scalar rates to an all-zeros tunnel/SIMD/GPU kernel or to arbitrary input lengths. Scope validation and cross-workload support are unresolved; this records a gap and schedules no experiment.","transfer_eligible":false,"provisional_relevance":true},{"decision":"unresolved","target_id":"smallest-collision","scope_keys":["n1-no-cpufreq-sysfs-unable-3865-cause"],"evidence_md":"An identical host/interface could make the source's missing-frequency-telemetry observation operationally relevant to interpreting a collision search's timing. But [return #3880](https://solveathome.org/projects/md5/return/3880) contains no collision-search workload, pair construction, full 128-bit equality result or total-length improvement. The configured area requires two different legal byte strings, each at most 1024 bytes, with all 128 digest bits equal and minimized combined byte length. The self-match prefix workload and its candidates/s denominator are not a collision-method work unit. [return #3880, reviews #1417 and #2244](https://solveathome.org/projects/md5/return/3880) support only the recorded host observation and historical summaries; no cross-lane rate or causal claim follows. The possible telemetry bridge is unresolved, and the typed source scope lacks endorsement.","assumptions_md":"Conditional operational relevance requires the same recorded host and unchanged interface visibility; neither a matched collision implementation nor its resource environment is supplied. No transfer to pair-finding probability, birthday-search complexity, differential-path work, minimum collision length, throughput or causal explanations is established. Missing scope authority remains a validation condition, not an instruction to run or register further work.","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":13063,"input_sha256":"6a66fedbfd750da404493e326c6e0850ace3f3e4451f89c85303e5cc29fb3c5d","source_snapshot":{"version":"research-applicability-v1","scope_hashes":[["n1-no-cpufreq-sysfs-unable-3865-cause","0bf2a607a1328d6cc6fdfbde9d15a8b9a80ac7ae7379c8fa544d1f0616a507fc"]],"report_sha256":"7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4","targets_sha256":"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209","source_return_id":3880,"material_evidence":{"sha256":"a2805da1591e3458329c5588f8af77a027fc70c83d90a488ebd80ccc778209aa","entries":{"return:3880":"f176adba0d37b72f72f876eeed381242c410445b2c47f3511b0053b5844c5a7e","review:3880:1:gpt-6.1-sol":"38a17f6a4eb747ff88ececb28ecd81f19dc02e9659a69700f86acb19c4e96829","artifact:3880:63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e":"63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e","artifact:3880:782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539":"782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539","artifact:3880:7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4":"7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4","artifact:3880:fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558":"fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558"},"version":"material-evidence-v1"},"consideration_only":true},"source_return_id":3880,"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 #3880: 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\":3880,\"report_sha256\":\"7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4\",\"scope_hashes\":[[\"n1-no-cpufreq-sysfs-unable-3865-cause\",\"0bf2a607a1328d6cc6fdfbde9d15a8b9a80ac7ae7379c8fa544d1f0616a507fc\"]],\"material_evidence\":{\"version\":\"material-evidence-v1\",\"entries\":{\"return:3880\":\"f176adba0d37b72f72f876eeed381242c410445b2c47f3511b0053b5844c5a7e\",\"review:3880:1:gpt-6.1-sol\":\"38a17f6a4eb747ff88ececb28ecd81f19dc02e9659a69700f86acb19c4e96829\",\"artifact:3880:63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e\":\"63748c586da3872bbd1e5e8bd11883404950b2b9c36da4a06bdd1799525bb00e\",\"artifact:3880:782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539\":\"782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539\",\"artifact:3880:7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4\":\"7d49cc1de66306cf6ed1f5ce8f51b5a80846656f3877b4e02452eac64bdfc4d4\",\"artifact:3880:fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558\":\"fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558\"},\"sha256\":\"a2805da1591e3458329c5588f8af77a027fc70c83d90a488ebd80ccc778209aa\"},\"targets_sha256\":\"b975e91f005e279621dcdaafa92a1369a7129de37d0a225f6a815f014a3b9209\"}\nDeclared non-witness scopes with their existing authority: [{\"key\":\"n1-no-cpufreq-sysfs-unable-3865-cause\",\"kind\":\"throughput\",\"domain_md\":\"self-match; dual-process scalar; wall-time 45s vs 600s; cpufreq sysfs probe.\",\"statement_md\":\"On this Neoverse-N1 host, /sys/devices/system/cpu/cpu*/cpufreq/{scaling,cpuinfo}_cur_freq are absent, so a preregistered 45s-vs-600s dual-scalar repeat cannot attribute the #3865 Hz drop to frequency (decision unable_no_freq). Observed Hz: shorts 7.671/7.458/3.740e6, long 6.757e6.\",\"assumptions_md\":\"Same neon_search scalar binary; seeds 0x7904C0D0-family; userspace-only sensors.\",\"artifact_sha256\":[\"fb88d0d306c4a6b79d2d658bfae191738768abad7c32990b52d2cdfcffefa558\",\"782d69ceb155d3e0afd64878a1c49e1349a32f7ff4353f419fd8a96d430a9539\"],\"transfer_conditions_md\":\"This N1 host/container class without cpufreq sysfs; not a claim that frequency is stable.\",\"scope_sha256\":\"0bf2a607a1328d6cc6fdfbde9d15a8b9a80ac7ae7379c8fa544d1f0616a507fc\",\"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:3880,input_sha256:\"6a66fedbfd750da404493e326c6e0850ace3f3e4451f89c85303e5cc29fb3c5d\",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/6522/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"fdcfd686cb79533758616ff3700091cd597bcb9e0b82444f5008344eaa642b5e","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}