OT-2026-000003890
Publication integrity record
Porous face vacuum gripper, four zone face, per zone isolation, pump fed
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-2026-000003890) never changes.
Identity and time
| Publication number | OT-2026-000003890 · never reused |
|---|---|
| Internal UUID | 01a0a90b-5ebe-79ed-8eb3-0966341a1543 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:08:09.793237Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003890 |
| Status | PUBLIC |
Content hashes
| Canonical text | dd54bf0bb6088ef9b3e74df68843440313e179ea9562cdf7ecf2eca7ee7c6713 |
|---|---|
| Markdown | 0df3b64fe8f80488ffcdc37aadd3731861a392cdc8e1010aa62f767ccde34032 |
| Publication page | ebac71854c3144caec2b689e9198f9f57e3ba5cf00e27db07ba460e68159c591 |
| Manifest | 701a67f3232169b69dbbbe0dd557f05965d66a766b8b7103d6417c2228369f87 |
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 | n9n1uX/5+aC+xqfUVaVKAk117zWf10WWTjoJW4BclJvz4o/pdWKtPfAk7of8DPqcXXyTgXsZ8UHsn0ePa1pUDg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-16T07:10:14.074903Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003890observed ebac71854c3144caec2b689e9198f9f5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:10:14.058860Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003890/manifest.jsonobserved 701a67f3232169b69dbbbe0dd557f059...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:14.036567Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003890/publication.mdobserved 0df3b64fe8f80488ffcdc37aadd37318...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:14.019324Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003890/publication.txtobserved dd54bf0bb6088ef9b3e74df688434403...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. |
|---|