OT-2026-000020687
Publication integrity record
Two bellows cup vacuum gripper, two zone face, per zone isolation, pump fed, pulsed blow-off before 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-2026-000020687) never changes.
Identity and time
| Publication number | OT-2026-000020687 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-65e2-7571-9ec9-747cd2d72e7f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:31.316024Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020687 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0e858f2cdd1672f7ae6b0d518c8601d77e3aa66588dff35d7ca6b48d66a3fc60 |
|---|---|
| Markdown | 7b50b3db00bc1207e277050d826a456ddfd79799be7a5e8a6300c7011d4f141f |
| Publication page | cb9690ddcbfec95514260c8ab6ebfb512b2c0af333a43cd127c76ac4bc636292 |
| Manifest | caa0eb81deea7871a9fb1b99455737270b1c343557dc0f361e82c264f25c6834 |
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 | nOKvjwcZZ7AMhQCv/+h9ZEAkmI/HC/Dlborh/7rDFy/NyrxvEyeDKZ4p4FRResTBBKUpiNwYPobLGaAnt+wwAw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-27T04:23:41.607854Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687observed cb9690ddcbfec95514260c8ab6ebfb51...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-27T04:23:41.589616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/manifest.jsonobserved caa0eb81deea7871a9fb1b9945573727...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:23:41.557311Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/publication.mdobserved 7b50b3db00bc1207e277050d826a456d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:23:41.407464Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/publication.txtobserved 0e858f2cdd1672f7ae6b0d518c8601d7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:41:23.332458Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687observed cb9690ddcbfec95514260c8ab6ebfb51...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:41:23.220930Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/manifest.jsonobserved caa0eb81deea7871a9fb1b9945573727...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:41:23.155913Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/publication.mdobserved 7b50b3db00bc1207e277050d826a456d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T04:41:23.074764Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020687/publication.txtobserved 0e858f2cdd1672f7ae6b0d518c8601d7...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 |
|---|