OT-2026-000041721
Publication integrity record
Single cup vacuum gripper, common isolation valve, pump fed, 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-2026-000041721) never changes.
Identity and time
| Publication number | OT-2026-000041721 · never reused |
|---|---|
| Internal UUID | 01a0ae79-e8a1-7dc7-85fc-95a36fe61001 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:00.220789Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000041721 |
| Status | PUBLIC |
Content hashes
| Canonical text | cfb3986fcfa3676a2aa36bc231eb845215356cb7b930854d6ed6f8007b32431f |
|---|---|
| Markdown | 6ee9033802afec83411e69bb7d82ba848da14da8057aa44ca234959c171aad5a |
| Publication page | 028c75d4fb5bc6f33c874a7ada74b61f80c4d7dd8cefb5ce5fe8e707b303078a |
| Manifest | 4bd0dd247cbf83582f0cd2b837343661500c1ab1b333198f3ec2d32dd96f399b |
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 | LMrJN+Uj/5Bin9u+ZSUxzkaLBDxmT/57QCoFHFTJ/8w5NVINOxmWsRXiliZN/oj6gLvJix98OaYBwL7YM1STAQ== |
| 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
| 2026-09-17T11:16:33.634141Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000041721observed 028c75d4fb5bc6f33c874a7ada74b61f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:16:33.617294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000041721/manifest.jsonobserved 4bd0dd247cbf83582f0cd2b837343661...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:16:33.601740Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000041721/publication.mdobserved 6ee9033802afec83411e69bb7d82ba84...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:16:33.584763Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000041721/publication.txtobserved cfb3986fcfa3676a2aa36bc231eb8452...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. |
|---|