OT-2026-000000025
Publication integrity record
Robotic Tool Centre Point Verification Using Three-Plane Reference Artefact
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-2026-000000025) never changes.
Identity and time
| Publication number | OT-2026-000000025 · never reused |
|---|---|
| Internal UUID | 01a0a672-0860-7bb6-a22d-022015e7b1b5 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:01:26.244279Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000025 |
| Status | PUBLIC |
Content hashes
| Canonical text | ce9ba310394f282c1f3e6dd3291733dbf54f47fcf808c9cab3d36a2f5752a74c |
|---|---|
| Markdown | a2ae00056caa30b4e976c533cfbda09cebdd113feed3f67041704ac7a3f97905 |
| Publication page | 8507b2245d4571e88c352826d0433f51c4c4a016bf7ff37157bc79fa1c1191d0 |
| Manifest | ed92e7a5c875699542d6eb7ce60f239450c5c95106663fe3001b88b2de4aedf6 |
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 | G/9J+PDDBLMmkhYBOjFZ5lFvX/i9Ozz6LgyAJbM0rteYUh5ETdCOdvhyMnGkHHUdGhQsU36i5XQxNbDDCWD+Dw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-17T04:23:21.857119Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025observed 8507b2245d4571e88c352826d0433f51...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T04:23:21.840437Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025/manifest.jsonobserved ed92e7a5c875699542d6eb7ce60f2394...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:21.821499Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025/publication.mdobserved a2ae00056caa30b4e976c533cfbda09c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:21.778557Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025/publication.txtobserved ce9ba310394f282c1f3e6dd3291733db...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:19.893484Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025observed 8507b2245d4571e88c352826d0433f51...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:19.864960Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025/manifest.jsonobserved ed92e7a5c875699542d6eb7ce60f2394...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:19.849624Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000025/publication.txtobserved ce9ba310394f282c1f3e6dd3291733db...fetched by instance-3.rotem.ai from 127.0.0.1, 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 |
|---|