OT-2026-000020251
Publication integrity record
Four bellows cup vacuum gripper, four zone face, 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-2026-000020251) never changes.
Identity and time
| Publication number | OT-2026-000020251 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437a-74fb-b8d6-4043b09204d0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020251 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4e3612577676e7a44810ff3796b75e6c4a8410304468dd98f989521a2ff2a03c |
|---|---|
| Markdown | d0cc0bd73e5d9229f8be9d24e552c6d384e0ce96c1a3f57814f098c807875cd9 |
| Publication page | 8eb67d39bc73e2718b63c8a91e7def33ce95e62ba8444e600e191bb5099ccc4e |
| Manifest | d1dd1c2fb9f75231483ebc5172758760189b773b7a9dc2938d7f14570418246f |
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 | qyH4FmsD63GO2O8vEobEZiZpRmQIMmBadrAG6I+sz/WbaE4KDj8VvXtZKcM1F6FpiQywBb/whrTvKbnsqlU5Aw== |
| 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
| 2026-09-17T08:42:53.989068Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020251observed 8eb67d39bc73e2718b63c8a91e7def33...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T08:42:53.508506Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020251/manifest.jsonobserved d1dd1c2fb9f75231483ebc5172758760...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:42:53.038353Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020251/publication.mdobserved d0cc0bd73e5d9229f8be9d24e552c6d3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:42:52.539093Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020251/publication.txtobserved 4e3612577676e7a44810ff3796b75e6c...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
| Custody package | Pending Custody packages are produced weekly. |
|---|