# Delx Research Evidence Ledger > A visible chain, not invisible certainty. - Schema: delx/research-evidence-ledger/v1 - Version: 1.2 - Status: published - Events: 12 - Artifact releases: 9 - Benchmark runs: 3 - Corrections: 0 - Retractions: 0 - Hash algorithm: sha256-stable-json-v1 - Head hash: 7be5693ddd148375018ff892db6fb5064f3592876e9cf3969d99f51fb164b036 - Append-only claimed: false - External anchor: false - Cryptographic signature: false - Operator can rewrite and rehash: true - Prior snapshot required to detect a full rewrite: true ## Claim boundary This is a hash-chained, append-oriented evidence history. It is not an append-only transparency log and does not establish authorship or immutable chronology. What the chain proves: Given a retained snapshot or head hash, canonical event hashing exposes an unrehashable edit, deletion, insertion or chain break in the published sequence. What it does not prove: The current operator controls the source and can rewrite history, recompute every hash and republish a new head unless a reader retained a prior snapshot. ## Events ### 01 — Continuity audit live receipt published - Event ID: 2026-08-26-continuity-live-audit - Type: benchmark_run - Recorded at: 2026-08-26T12:31:00.636Z - Owner: Delx Research - Status: pass - Summary: A QA-classified call to the public Protocol continuity-audit tool returned score 86 and the frozen grader marked the expected pass as matched. - Previous event hash: 0000000000000000000000000000000000000000000000000000000000000000 - Event hash: d254fca9055a6244f2a7bef025137375eaf1e7b39991bc2e7ae49fe45dda220a - Receipt: https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-live-audit.json - Receipt SHA-256: 7f183a1eba28971d22da19787dd15fd0101039e361b37329a8058a23fd9a4750 - Run ID: ed67cb0b-0b26-462b-bc3d-97b449e8e84f - Expected status: pass - Expectation matched: true - Public evidence: - https://delx.ai/research/benchmarks/continuity-v1 - https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-live-audit.json - Limitations: - The run covers one Delx-authored continuity-audit slice, not the full stateful benchmark. - A first-party live pass is not independent validation, peer review, adoption evidence or a system-wide safety result. ### 02 — Agent Lab foundation released - Event ID: 2026-08-26-agent-lab-foundation-release - Type: artifact_release - Recorded at: 2026-08-26T13:01:09Z - Owner: Delx Research - Status: published - Summary: The institutional research index, machine catalog, claim methodology and continuity reproduction kit were promoted together. - Previous event hash: d254fca9055a6244f2a7bef025137375eaf1e7b39991bc2e7ae49fe45dda220a - Event hash: bd6bd00831d8bda9a3d0ab0b0a36bae955203251c2e8cf954da576028145fb91 - Source commit: 68f8a1b5949d32f7a203a2924cd9b50f28366c92 - Deployment ID: dpl_Bu3uujVDyUHwU8qnBRMXMrjnnJrz - Public evidence: - https://delx.ai/research - https://delx.ai/research/catalog.json - https://delx.ai/research/methodology - https://delx.ai/research/benchmarks/continuity-v1 - Limitations: - This is first-party release evidence for the named deployment, not external scientific review or evidence of adoption. ### 03 — Delx Protocol 3.3.5 System Card released - Event ID: 2026-08-26-protocol-system-card-release - Type: artifact_release - Recorded at: 2026-08-26T13:34:38Z - Owner: Delx Protocol - Status: published - Summary: A versioned human, JSON and Markdown system card published intended uses, side effects, data boundaries, evaluation coverage, incident history and limitations. - Previous event hash: bd6bd00831d8bda9a3d0ab0b0a36bae955203251c2e8cf954da576028145fb91 - Event hash: 91f02034d0a22877a77f6be765af685ab33eefdd9f85c983676951d8b89302db - Source commit: c2f5a0809112e7b8025ece483229bade1b038ea0 - Deployment ID: dpl_Ero4ejYrEHh852FDcCb7Q1u29ZSs - Public evidence: - https://delx.ai/research/system-cards/delx-protocol-3.3.5 - https://delx.ai/research/system-cards/delx-protocol-3.3.5.json - https://delx.ai/research/system-cards/delx-protocol-3.3.5.md - Limitations: - Interface version 3.3.5 does not identify immutable deployed bytes, and the card is not an independent assessment or certification. ### 04 — Incident transparency registry released - Event ID: 2026-08-26-incident-registry-release - Type: artifact_release - Recorded at: 2026-08-26T14:06:06Z - Owner: Delx Security - Status: published - Summary: The public registry and first material Protocol write-outage report were promoted with cause, observed impact, remediation and residual risk. - Previous event hash: 91f02034d0a22877a77f6be765af685ab33eefdd9f85c983676951d8b89302db - Event hash: f1bee1e633c59aab0ea6010447d93ae082f2e13624b151abd9eea452caaacec0 - Source commit: 85053d6fc6c016938901b7c5184ca51e608b8713 - Deployment ID: dpl_7TkipcVKaXVfVuAv6UdjHUUu3kpR - Public evidence: - https://delx.ai/research/incidents - https://delx.ai/research/incidents.json - https://delx.ai/research/incidents/2026-08-17-protocol-write-outage - Limitations: - The registry begins with one operator-authored report and does not claim a complete reconstruction of all historical incidents. ### 05 — Live research artifact status released - Event ID: 2026-08-26-live-research-status-release - Type: artifact_release - Recorded at: 2026-08-26T15:15:51Z - Owner: Delx Institutional - Status: published - Summary: Timestamped first-party probes began publishing operational, degraded, failed and unavailable as separate states for catalog artifacts. - Previous event hash: f1bee1e633c59aab0ea6010447d93ae082f2e13624b151abd9eea452caaacec0 - Event hash: 9543f4092cd787ebb9fe204959f4371646040d86421efd57bb7b51a9169f5c21 - Source commit: 7f63dbb2f3e934ddc7f6a4068ae0e637bcf414c2 - Deployment ID: dpl_GVEREaWtYxeQFpZVRxNxMzo8ot7m - Public evidence: - https://delx.ai/research/status - https://delx.ai/research/status.json - https://delx.ai/research/status.md - Limitations: - Reachability is a point-in-time first-party observation, not scientific validity, permission, adoption or future uptime. ### 06 — Responsible Release Standard released - Event ID: 2026-08-26-responsible-release-standard - Type: artifact_release - Recorded at: 2026-08-26T15:45:42Z - Owner: Delx Security - Status: published - Summary: An executable release, hold and block contract began publishing scope, evidence, risk, authority, rollback, gaps and expiring exceptions. - Previous event hash: 9543f4092cd787ebb9fe204959f4371646040d86421efd57bb7b51a9169f5c21 - Event hash: cd00573f10e0e4b8e796ee7903df29c81711aeb35bdac13777dbe477077de3a3 - Source commit: e0c9ec4be1e2b92b97c8a0dbbdc159c3878392c3 - Deployment ID: dpl_96LaKd777oyS11AywJnu367M6a6g - Public evidence: - https://delx.ai/research/responsible-release - https://delx.ai/research/responsible-release.json - https://delx.ai/research/responsible-release.md - Limitations: - The standard is first-party governance, not certification, independent assurance or proof that every unknown failure mode was found. ### 07 — Continuity benchmark threat model released - Event ID: 2026-08-26-continuity-threat-model-release - Type: artifact_release - Recorded at: 2026-08-26T16:26:19Z - Owner: Delx Security - Status: published - Summary: A twelve-threat register exposed benchmark gaming, provenance, injection, identity, measurement, authority, privacy and reliability risks. - Previous event hash: cd00573f10e0e4b8e796ee7903df29c81711aeb35bdac13777dbe477077de3a3 - Event hash: 842c2561a3b1977563aa4f03ec3699293fc3fdb0671896f7577ebc6fbd3dcd83 - Source commit: 71802895550e48b9d02f0b7d9261e2974513c6d9 - Deployment ID: dpl_7BdfUTb5bULnBx376t1YVjGT3ob3 - Public evidence: - https://delx.ai/research/benchmarks/continuity-v1/threat-model - https://delx.ai/research/benchmarks/continuity-v1/threat-model.json - https://delx.ai/research/benchmarks/continuity-v1/threat-model.md - Limitations: - The first-party threat model covers the one-call audit slice and leaves three validity risks open; it is not authorization for active testing. ### 08 — Positive continuity fixture receipt retained - Event ID: 2026-08-26-continuity-fixture-pass - Type: benchmark_run - Recorded at: 2026-08-26T16:49:32.817Z - Owner: Delx Research - Status: pass - Summary: The frozen positive vector scored 86; the expected pass matched and the receipt records that no external state changed. - Previous event hash: 842c2561a3b1977563aa4f03ec3699293fc3fdb0671896f7577ebc6fbd3dcd83 - Event hash: 31c4a0d2c16399caff3b6669f904c7371117154f17c0b1f1d8ab208e8bdaa69e - Receipt: https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-fixture-pass.json - Receipt SHA-256: e1fd0648af140e6774ed45f72ff362d98088773a5dfd70b13886e26cbe86b964 - Run ID: 3117f43e-ba04-4cf3-ad50-3f503e290e9a - Expected status: pass - Expectation matched: true - Public evidence: - https://delx.ai/research/benchmarks/continuity-v1 - https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-fixture-pass.json - Limitations: - The public fixture and Delx-authored lexical grader test reproducible conformance, not unseen-task generalization or semantic continuity. ### 09 — Negative continuity fixture receipt retained - Event ID: 2026-08-26-continuity-fixture-fail - Type: benchmark_run - Recorded at: 2026-08-26T16:49:32.853Z - Owner: Delx Research - Status: fail - Summary: The frozen negative vector scored 53 and failed the continuity checks; the expected fail matched and the observed result remains fail. - Previous event hash: 31c4a0d2c16399caff3b6669f904c7371117154f17c0b1f1d8ab208e8bdaa69e - Event hash: 95d489bae5cb9be9897ade40457745d72f18c7cfb7ba64252a832a779570b49e - Receipt: https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-fixture-fail.json - Receipt SHA-256: 3fa2931e3201d5bdbcede91f45a9120a8f748eb5d9d33ff081da35760c0ca404 - Run ID: 1d53c39c-f4ec-4b77-8e45-97d96e30d1cd - Expected status: fail - Expectation matched: true - Public evidence: - https://delx.ai/research/benchmarks/continuity-v1 - https://delx.ai/research/benchmarks/continuity-v1/receipts/2026-08-26-fixture-fail.json - Limitations: - A matched negative control shows that this fixture is rejected by this grader; it does not establish benchmark completeness or external validity. ### 10 — Research evidence ledger released - Event ID: 2026-08-26-research-evidence-ledger-release - Type: artifact_release - Recorded at: 2026-08-26T17:39:11.594Z - Owner: Delx Research - Status: published - Summary: The first hash-chained research history published six exact release events and three benchmark receipts while keeping its operator-rewrite boundary explicit. - Previous event hash: 95d489bae5cb9be9897ade40457745d72f18c7cfb7ba64252a832a779570b49e - Event hash: 1ee2daf1967f9e1e069538051fc8d284fdcf58a24129d274062f948c2036b182 - Source commit: 79026cc8a9eb9d223b846cb313dc2febd3890202 - Deployment ID: dpl_DzwCSRiJMUXDuz6dS25zAN7TLeP4 - Public evidence: - https://delx.ai/research/ledger - https://delx.ai/research/ledger.json - https://delx.ai/research/ledger.md - Limitations: - The release proves which first-party deployment was promoted; it does not make the ledger externally anchored, signed, immutable or independently validated. ### 11 — Delx Technical Report 001 released - Event ID: 2026-08-26-technical-report-001-release - Type: artifact_release - Recorded at: 2026-08-26T19:20:00.000Z - Owner: Delx Research - Status: published - Summary: The lab's first citable technical report published its method, three retained observations, a 33-point frozen separation and the release decision it changed, in human, JSON, Markdown and BibTeX views. - Previous event hash: 1ee2daf1967f9e1e069538051fc8d284fdcf58a24129d274062f948c2036b182 - Event hash: 4531b46de03dfdce74d5f16d2bc0aba8be7cac4fbb53ae0dd2598570e5d41703 - Source commit: bc83e07545016cb368d0fea46fad0cba6fc127d2 - Deployment ID: dpl_9JxEXsFiCwzfbWwVQDDHyDdgzhwm - Public evidence: - https://delx.ai/research/reports/tr-001-continuity-audit - https://delx.ai/research/reports/tr-001-continuity-audit.json - https://delx.ai/research/reports/tr-001-continuity-audit.md - https://delx.ai/research/reports/tr-001-continuity-audit.bib - Limitations: - The release proves which first-party deployment was promoted. It does not make the report peer reviewed, independently validated or externally replicated. ### 12 — Lab citation record corrected - Event ID: 2026-08-26-lab-citation-record-correction - Type: artifact_release - Recorded at: 2026-08-26T19:20:30.000Z - Owner: Delx Research - Status: published - Summary: delx.ai/CITATION.cff stopped redirecting to the ontology record, which cites a different work, links a private repository and publishes the founder's middle name as a surname. The lab now serves its own CFF referencing DELX-TR-001, guarded by an allowlist that refuses any extra name part. - Previous event hash: 4531b46de03dfdce74d5f16d2bc0aba8be7cac4fbb53ae0dd2598570e5d41703 - Event hash: 7be5693ddd148375018ff892db6fb5064f3592876e9cf3969d99f51fb164b036 - Source commit: f9301e8b76b004088f43f5bda81702e5d4c6070a - Deployment ID: dpl_EexhRjpCHngZabHtk1tPBQPdZEVb - Public evidence: - https://delx.ai/CITATION.cff - Limitations: - This corrects what delx.ai publishes about citing Delx. It is not evidence that anyone has cited Delx, and it creates no DOI, venue or archival permanence. - It is recorded as a release rather than a ledger correction because the inherited record was never a ledger-tracked artifact, so there is no earlier event to target. ## Limitations - The operator can rewrite and rehash this first-party ledger; there is no external anchor, digital signature or trusted timestamp. - A reader needs a previously retained snapshot or head hash to detect a fully recomputed history. - Zero published corrections or retractions means none exist in this ledger version, not that Delx has made zero historical errors. - The recorded releases and runs are first-party evidence, not independent validation, adoption, demand, endorsement or certification. Human ledger: https://delx.ai/research/ledger JSON ledger: https://delx.ai/research/ledger.json