OT-2026-000020420
Publication integrity record
Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000020420) never changes.
Identity and time
| Publication number | OT-2026-000020420 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437b-71cc-8ea3-463cb65c4583 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020420 |
| Status | PUBLIC |
Content hashes
| Canonical text | 63593511b35c7994b1230460cd1c783fc3105fa5166f17faaed2360adb2f73a0 |
|---|---|
| Markdown | 11006182e2d506ab078429d2e94f4b5899bd37caed1ccf47f613b0da261847a3 |
| Publication page | fa41cc653d8cebff916d7661c2706a54229704448d61e81934d0b30bd3af8bd6 |
| Manifest | ebb7f3807999487fb43fe34538910fc70bd77186fb12c67f50854afe6b69bd37 |
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 | LmtTzO4foKDxrXKcvyF/0aNfAGheqfdV4ZyITGpM8K1LgUsUABysvOirgDFUA84RejUl17h+hKgptzYJFFuyBQ== |
| 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
| 2026-09-21T12:41:40.823665Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420observed fa41cc653d8cebff916d7661c2706a54...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T12:41:40.753333Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/manifest.jsonobserved ebb7f3807999487fb43fe34538910fc7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T12:41:40.665961Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/publication.mdobserved 11006182e2d506ab078429d2e94f4b58...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T12:41:40.593694Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/publication.txtobserved 63593511b35c7994b1230460cd1c783f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:00:09.757961Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420observed fa41cc653d8cebff916d7661c2706a54...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:00:09.731894Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/manifest.jsonobserved ebb7f3807999487fb43fe34538910fc7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:00:09.702429Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/publication.mdobserved 11006182e2d506ab078429d2e94f4b58...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:00:09.644639Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020420/publication.txtobserved 63593511b35c7994b1230460cd1c783f...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
| 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 |
|---|