OT-2026-000007884
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off after set-down, on a tool changer
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-2026-000007884) never changes.
Identity and time
| Publication number | OT-2026-000007884 · never reused |
|---|---|
| Internal UUID | 01a0ae6a-908a-760d-9764-0b2461f9f22a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:10:14.564317Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000007884 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0fea74eaecccfdaf793825626a99e9f67b30b3388e0e2d4015c810e7d7988dc5 |
|---|---|
| Markdown | 5e7b73e0b566947f28ddd53668cc7b8f620e8b42b014ed742f53c1e1f65d9fec |
| Publication page | 40d20ef782f26b834a444ba4562aa855f62930e25e26d1eccafef08305dd94ae |
| Manifest | 3ad31370817ec8a1b8ca9c80f84f959c4420582f8b9ada4e7d3dce7655ef2028 |
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 | ZsVvGrEnAZDIG28wgQmDWdioPP4WBhBlqOVaq2cD1vCDt7dg3lVq80JxVvsswamZ/f1kcYt743vqhG/DQYa8Bg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:27:08Z batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof root 20fdfaa98ae3657e4211fd7783095876... |
|---|
Independent retrieval
| 2026-10-30T08:41:48.108757Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884observed 40d20ef782f26b834a444ba4562aa855...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-30T08:41:48.034854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/manifest.jsonobserved 3ad31370817ec8a1b8ca9c80f84f959c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-30T08:41:47.985709Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/publication.mdobserved 5e7b73e0b566947f28ddd53668cc7b8f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-30T08:41:47.847325Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/publication.txtobserved 0fea74eaecccfdaf793825626a99e9f6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:43:24.212752Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884observed 40d20ef782f26b834a444ba4562aa855...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:43:23.427309Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/manifest.jsonobserved 3ad31370817ec8a1b8ca9c80f84f959c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:43:22.741285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/publication.mdobserved 5e7b73e0b566947f28ddd53668cc7b8f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T20:43:22.096282Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007884/publication.txtobserved 0fea74eaecccfdaf793825626a99e9f6...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 |
|---|