OT-2026-000031997
Publication integrity record
Single cup vacuum gripper, pump fed, pulsed 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-2026-000031997) never changes.
Identity and time
| Publication number | OT-2026-000031997 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-75ff-8bc1-5ee2e3a693dd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031997 |
| Status | PUBLIC |
Content hashes
| Canonical text | 91b785e43407250c31b079c250a9daecdd3a3ce36a4b0c9c7df0af0c59eadac5 |
|---|---|
| Markdown | 37dd4f5e92a134028ad003c78b748e34346d2363ae29e6cf0947a7951642f1c8 |
| Publication page | 23da25c41ec14845730615dbe32addeb887e14079d9cc103b0996955f3aaa4db |
| Manifest | fcb63e2c42e5949f80445b1b244ce8b01b9e26a9ba44129a3b27423a6be78121 |
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 | 7WM1gHz6lvfd4AG02/Uz3loGBYijV9PZHb7VgGY9892lddnvkaNhN2MnNofQBhqxILIixsiCU8MInCvpill9DQ== |
| 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
| 2026-09-17T11:35:23.771103Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031997observed 23da25c41ec14845730615dbe32addeb...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:35:23.751051Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031997/manifest.jsonobserved fcb63e2c42e5949f80445b1b244ce8b0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:23.730468Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031997/publication.mdobserved 37dd4f5e92a134028ad003c78b748e34...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:23.712131Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031997/publication.txtobserved 91b785e43407250c31b079c250a9daec...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. |
|---|