OT-2026-000091055
Publication integrity record
Three bellows cup vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, sustained 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-2026-000091055) never changes.
Identity and time
| Publication number | OT-2026-000091055 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c012-7aff-bf51-f6001526d00e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000091055 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7477d13789fa520d51c6deed2725051c450cbf409f91830462512cb936c217ea |
|---|---|
| Markdown | 989991b7532a02f12912bb46e02cbb5621357a595c5fe92cc724d470c4068428 |
| Publication page | 302d189392bc4d06bf3f5023f4131e001f626ec1a0ecceaa6d2d0a3a3de2e485 |
| Manifest | a60dd108bf45e349b81a97d1ff71cd98754c7f16326bb038b9bf6d0c0fd8a5e2 |
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 | iMzEprfnrLqZCGQtWvm9ssK97uH6ckcIn9rec2C7l19EZR8alAb2LYU4L+VpkBRrxWCMgEaaFvK5FrUSqFsiCA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-10-20T20:41:25.751437Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055observed 302d189392bc4d06bf3f5023f4131e00...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-20T20:41:25.687173Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/manifest.jsonobserved a60dd108bf45e349b81a97d1ff71cd98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T20:41:25.633731Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/publication.mdobserved 989991b7532a02f12912bb46e02cbb56...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T20:41:25.549534Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/publication.txtobserved 7477d13789fa520d51c6deed2725051c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:14.789032Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055observed 302d189392bc4d06bf3f5023f4131e00...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:14.703008Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/manifest.jsonobserved a60dd108bf45e349b81a97d1ff71cd98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:14.615313Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/publication.mdobserved 989991b7532a02f12912bb46e02cbb56...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T08:41:14.434154Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091055/publication.txtobserved 7477d13789fa520d51c6deed2725051c...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. |
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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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
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