OT-2026-000004888
Publication integrity record
Porous face vacuum gripper, three zone face, three outlet manifold, plant vacuum fed, pressure verified
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-2026-000004888) never changes.
Identity and time
| Publication number | OT-2026-000004888 · never reused |
|---|---|
| Internal UUID | 01a0a926-b282-7d94-90ed-3a68be0edc48 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:38:00.709344Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004888 |
| Status | PUBLIC |
Content hashes
| Canonical text | c695c649286ce0e4c29b5e1e9559e837922716abfaf4d40d7cc006a2862757eb |
|---|---|
| Markdown | 9728d8159585184a72031efc2e37d8d0af06e9462019b16656da6a97759514f7 |
| Publication page | 577db8155ab8bb5cc2daa52f17fef8633dc300f9e99edd9e99f2c5cb02620a50 |
| Manifest | 961a22ae9aa7ed7765055479b84af8e66f2d588b3de690c464149446e7a45816 |
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 | Ac3dUQGFdOV4i0Au0aWUyG2HY9I7RPnZ7hxw/0uFMBsRE0+kB77CUXlAudEPayiAmYA5709BItGaMeT8Sep0Dg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-10-11T04:41:42.191185Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888observed 577db8155ab8bb5cc2daa52f17fef863...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T04:41:42.095169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/manifest.jsonobserved 961a22ae9aa7ed7765055479b84af8e6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:42.004438Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/publication.mdobserved 9728d8159585184a72031efc2e37d8d0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T04:41:41.845500Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/publication.txtobserved c695c649286ce0e4c29b5e1e9559e837...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:18.016688Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888observed 577db8155ab8bb5cc2daa52f17fef863...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:17.980330Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/manifest.jsonobserved 961a22ae9aa7ed7765055479b84af8e6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:17.967365Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/publication.mdobserved 9728d8159585184a72031efc2e37d8d0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:23:17.951639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004888/publication.txtobserved c695c649286ce0e4c29b5e1e9559e837...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|