OT-2026-000077273
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, 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-2026-000077273) never changes.
Identity and time
| Publication number | OT-2026-000077273 · never reused |
|---|---|
| Internal UUID | 01a0ae94-f508-7c8e-8113-25f524a04656 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:56:32.796581Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000077273 |
| Status | PUBLIC |
Content hashes
| Canonical text | 48bf485d7943f77c3461f037248f85c7b8cda0ba2a7c844390d47d02e89c2aee |
|---|---|
| Markdown | 2905c41d1203d7c8d46c1c74ab7aea8ec21421395ab9a414b6d71f55539581bf |
| Publication page | 93a1587276446babee553782525a18def5e60bcb344cae2c638901b8bd0ae2a3 |
| Manifest | a8427942d4d85219ec95f6ebe07e49be1f8f51525e1b653c250f85c54bd961ff |
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 | 6jH0wCrNEQ6zFSp0Ys8TplPW8c1niUZtx2eyhfuKAR340xmZ6Qs9QRd9xFyx5VS8o7nWARzxlM7Hn5tnH7i4Bw== |
| 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
| 2026-10-27T12:41:59.523633Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273observed 93a1587276446babee553782525a18de...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-27T12:41:59.453701Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/manifest.jsonobserved a8427942d4d85219ec95f6ebe07e49be...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:59.358385Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/publication.mdobserved 2905c41d1203d7c8d46c1c74ab7aea8e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T12:41:59.257476Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/publication.txtobserved 48bf485d7943f77c3461f037248f85c7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T16:41:23.895144Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273observed 93a1587276446babee553782525a18de...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T16:41:23.825804Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/manifest.jsonobserved a8427942d4d85219ec95f6ebe07e49be...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T16:41:23.714294Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/publication.mdobserved 2905c41d1203d7c8d46c1c74ab7aea8e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T16:41:23.562896Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000077273/publication.txtobserved 48bf485d7943f77c3461f037248f85c7...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 |
|---|