OT-2026-000020287
Publication integrity record
Foam pad 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-2026-000020287) never changes.
Identity and time
| Publication number | OT-2026-000020287 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437a-7057-8acf-95a0b3f03648 · 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-2026-000020287 |
| Status | PUBLIC |
Content hashes
| Canonical text | db71b70afd2749b51f952a13f2d62a9191aa921dc5a7fd7a6f17b93676fcdf31 |
|---|---|
| Markdown | 63a8e39d0046825458d75e6151ad98258bb32cd91cc8bb23dcf3cef33a240594 |
| Publication page | 242ad2c05861dbcef19fa62d43b42d7309a989185ae37c162c226e051edb2a9d |
| Manifest | 9cff9c106bd61c26ef830eedb3549c898c4ab912f49f337ab567a5b1d8f064e6 |
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 | IJ4JWr0eXQkTCoTc6IAoHu4oTNEQ5cUjw/8TFhIO8jEdtKFY3Y81iNJehZmfNlY4oU0WkyxsthnyM7Ex1J4kBw== |
| 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
| 2026-09-17T11:56:38.591560Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020287observed 242ad2c05861dbcef19fa62d43b42d73...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:56:38.574965Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020287/manifest.jsonobserved 9cff9c106bd61c26ef830eedb3549c89...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:38.556575Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020287/publication.mdobserved 63a8e39d0046825458d75e6151ad9825...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:56:38.538716Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020287/publication.txtobserved db71b70afd2749b51f952a13f2d62a91...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. |
|---|