OT-2026-000001887
Publication integrity record
Workpiece transport device
This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000001887) never changes.
Identity and time
| Publication number | OT-2026-000001887 · never reused |
|---|---|
| Internal UUID | 01a0a679-3c80-76de-8ae5-012ff6cb93ff · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:09:18.336835Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001887 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5a4c1b13c1c287cad35c1a7acf02b6eca42a860fe18580c9bed49448e0ab5da6 |
|---|---|
| Markdown | 2bc1d7913301a361de3cc11830cd5512f51b0444053a026100ed5f3758b4dc63 |
| Publication page | 6fdeaaf576fdb9db9487044094593c5df13fda4c33d02e8b791f9b37377e8bb9 |
| Manifest | d41a9b87ee62b5333e66d267f045e6b6ce659620df4c4b47eda16e1e10ac5ae7 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | hb6ZK05rlYc7O/yRD1JjxT0dUqGUel66noEeapPJFLUpdlw9052AArLvk6BycZX2SMh3d+gisSpiL7Sr8IAhBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-28T00:41:50.555921Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887observed 6fdeaaf576fdb9db9487044094593c5d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-28T00:41:50.477991Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/manifest.jsonobserved d41a9b87ee62b5333e66d267f045e6b6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:50.391446Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/publication.mdobserved 2bc1d7913301a361de3cc11830cd5512...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T00:41:50.226498Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/publication.txtobserved 5a4c1b13c1c287cad35c1a7acf02b6ec...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:44.381448Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887observed 6fdeaaf576fdb9db9487044094593c5d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:44.225661Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/manifest.jsonobserved d41a9b87ee62b5333e66d267f045e6b6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:43.950207Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/publication.mdobserved 2bc1d7913301a361de3cc11830cd5512...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T04:43:43.588193Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001887/publication.txtobserved 5a4c1b13c1c287cad35c1a7acf02b6ec...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.
Independent archive
| External archive | Pending Canonical URLs are submitted to an independent archive in batches. |
|---|
A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.
Third-party custody
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|