OT-2026-000002142
Publication integrity record
Device and method for sorting plies
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-2026-000002142) never changes.
Identity and time
| Publication number | OT-2026-000002142 · never reused |
|---|---|
| Internal UUID | 01a0a67a-d992-7004-a4b0-72550b666cde · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:11:04.083034Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002142 |
| Status | PUBLIC |
Content hashes
| Canonical text | 493fd63e96dbcdd94a679686f9f0cf5f0a4ee34f8e963846171ca7cab075e49d |
|---|---|
| Markdown | 37065a9b8b1b0e4bbb4e4d7842917ff2f4eb6d4f31adf8e94b155c81ab982711 |
| Publication page | 584490379b3b3dc01f50590f146f82b7031f92ca4f44a28926ab9ec7775011d3 |
| Manifest | 13ae26ce6e79fc33d21c510ac5168c76e55fb954a0cc7fbdb7c894fee2742c86 |
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 | UudpZI9SxYlpBcmZgZ3D8T8x/G8ZyxOfWxCmtsy73jjlefiHcT1xCPpZoUq3kED4ydLxuMi+aNvtbN6e03R3Bg== |
| 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
| 2026-10-24T16:41:23.021708Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142observed 584490379b3b3dc01f50590f146f82b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-24T16:41:22.975475Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/manifest.jsonobserved 13ae26ce6e79fc33d21c510ac5168c76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T16:41:22.904912Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/publication.mdobserved 37065a9b8b1b0e4bbb4e4d7842917ff2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T16:41:22.723846Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/publication.txtobserved 493fd63e96dbcdd94a679686f9f0cf5f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T08:41:43.750100Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142observed 584490379b3b3dc01f50590f146f82b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T08:41:43.676776Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/manifest.jsonobserved 13ae26ce6e79fc33d21c510ac5168c76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T08:41:43.588633Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/publication.mdobserved 37065a9b8b1b0e4bbb4e4d7842917ff2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T08:41:43.465073Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002142/publication.txtobserved 493fd63e96dbcdd94a679686f9f0cf5f...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 |
|---|