OT-2026-000072250
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, vented 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-2026-000072250) never changes.
Identity and time
| Publication number | OT-2026-000072250 · never reused |
|---|---|
| Internal UUID | 01a0ae92-47c2-7bbd-985b-326f8548297e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:53:37.365346Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000072250 |
| Status | PUBLIC |
Content hashes
| Canonical text | 504b5958e4e411d47a604f322f0421f967050f46c63b24f3e736bbb9af4199d9 |
|---|---|
| Markdown | 97c266f852b5b700132012d31120366ec4ec513181dd2b1847fbfd99b7cc78fd |
| Publication page | 2439f7da7d0e85eb36dc567628a0bcf3d5601ea604c75c6140a3ca478a41b717 |
| Manifest | f884cb1670f39e6a9526c754bd9e45fc4ff1e6cbed8b3da13873835f68533336 |
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 | +JpqD2zv9y8ROT3X3l1686qUQnKPfs8s2c0o0tatZb3SR8Pmgfo/YNRX9WOqmIQYItedWxZwRG+q+5ldlCVvAw== |
| 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... |
|---|
Independent retrieval
| 2026-10-08T04:41:24.807118Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250observed 2439f7da7d0e85eb36dc567628a0bcf3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-08T04:41:24.663660Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/manifest.jsonobserved f884cb1670f39e6a9526c754bd9e45fc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T04:41:24.551220Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/publication.mdobserved 97c266f852b5b700132012d31120366e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T04:41:24.159813Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/publication.txtobserved 504b5958e4e411d47a604f322f0421f9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:38.019742Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250observed 2439f7da7d0e85eb36dc567628a0bcf3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:37.869278Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/manifest.jsonobserved f884cb1670f39e6a9526c754bd9e45fc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:37.779244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/publication.mdobserved 97c266f852b5b700132012d31120366e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:37.625398Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000072250/publication.txtobserved 504b5958e4e411d47a604f322f0421f9...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. |
|---|
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 |
|---|