OT-2026-000021221
Publication integrity record
Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, 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-2026-000021221) never changes.
Identity and time
| Publication number | OT-2026-000021221 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-865c-7f70-85fa-118b9347d96d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:39.631048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021221 |
| Status | PUBLIC |
Content hashes
| Canonical text | 75e30a79fb0422128c0f4e335876f376bc73aa003fe061446d0200c2a0eb284c |
|---|---|
| Markdown | 55a862e24932c4d24e98f6d7ab3e15fe72c6df7ef2a8bf2fe73e289a9a6d761e |
| Publication page | beb60477a8752ef965bdf837b76864f495a110834ce916cc85b970f8c9003d8d |
| Manifest | 711b8dee18735be60e78b73961a8aa7eb7df7ae38d093f6a4e843c4b3bb8517d |
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 | 8nBEcGMR8WElQq4xXrl9JknkIiUf83Jx20j41qNPLp/OpeAymu2FZ86rJRO1m0ZBeJAOn9WQVwl8C1jaMCgiCQ== |
| 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
| 2026-09-17T11:55:01.616064Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021221observed beb60477a8752ef965bdf837b76864f4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:55:01.593301Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021221/manifest.jsonobserved 711b8dee18735be60e78b73961a8aa7e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:01.572779Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021221/publication.mdobserved 55a862e24932c4d24e98f6d7ab3e15fe...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:55:01.553475Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021221/publication.txtobserved 75e30a79fb0422128c0f4e335876f376...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
| Custody package | Pending Custody packages are produced weekly. |
|---|