OT-2026-000002972
Publication integrity record
A gripper assembly for a robotic manipulator
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-2026-000002972) never changes.
Identity and time
| Publication number | OT-2026-000002972 · never reused |
|---|---|
| Internal UUID | 01a0a67f-cf36-76bc-8f1b-b846c876714e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:16:29.110777Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002972 |
| Status | PUBLIC |
Content hashes
| Canonical text | aca3b691f743d24261c30ef04b4c55d96a443183c9195db0bcdb3e22de296d5c |
|---|---|
| Markdown | bb487cc39f4103a1531b0c8380c03d43374cd95c384d4024229abfd817b20d74 |
| Publication page | db3b8bb04a3b1cb7cbe01788bed833d75856fe31514f0862e02527de913f1d6b |
| Manifest | f7d5a0807e5587c23dabccb69b6e40490ca370f18ec41ff8ab14b4270b719654 |
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 | +1KiUqrcwZzwXZgvuqf18+mWhbRpZgF3g1t7Gp5YsK2GcG6zK8jsw//eWzGw3WbHUT3ureJoEX4H67lcKqmpDw== |
| 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
| 2026-09-19T08:41:43.584393Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972observed db3b8bb04a3b1cb7cbe01788bed833d7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-19T08:41:43.292806Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/manifest.jsonobserved f7d5a0807e5587c23dabccb69b6e4049...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:41:43.060631Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/publication.mdobserved bb487cc39f4103a1531b0c8380c03d43...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T08:41:42.764548Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/publication.txtobserved aca3b691f743d24261c30ef04b4c55d9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:03.378558Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972observed db3b8bb04a3b1cb7cbe01788bed833d7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:03.090051Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/manifest.jsonobserved f7d5a0807e5587c23dabccb69b6e4049...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:02.801820Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/publication.mdobserved bb487cc39f4103a1531b0c8380c03d43...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:02.468658Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002972/publication.txtobserved aca3b691f743d24261c30ef04b4c55d9...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 |
|---|