OT-2026-000011227
Publication integrity record
Foam pad vacuum gripper, common isolation valve, pump fed, vented after 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-2026-000011227) never changes.
Identity and time
| Publication number | OT-2026-000011227 · never reused |
|---|---|
| Internal UUID | 01a0ae6c-5410-7f79-b4d9-573ae72ecbe6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:12:10.156048Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000011227 |
| Status | PUBLIC |
Content hashes
| Canonical text | f8a92ef7eda44dc4a4f911c8831e580b790a44f9c80a8521eddc4b10f20d739e |
|---|---|
| Markdown | 7f2390f2045523f0d6b68d887ca114f4dc7665f5012a73cc9bad0572e6f7247e |
| Publication page | 4c134908ad19d89d1a16457a097ad6bf8c6ce2d441ab8981e34aa566bfb67fdd |
| Manifest | a9f56f81b27b813cf50eb8e1a32286d6f1fb4848121bd4b1f115af29b1562803 |
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 | m9f8m30xGy35d9gP8pIGt00qMizCRToUgzEGjKYCJ2x7xGpBtiJ/vs3pMLYNW8rn5EwpSusEPpKylSBWrXV/Dw== |
| 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
| 2026-10-11T00:41:35.002120Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227observed 4c134908ad19d89d1a16457a097ad6bf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T00:41:34.921821Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/manifest.jsonobserved a9f56f81b27b813cf50eb8e1a32286d6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:34.842800Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/publication.mdobserved 7f2390f2045523f0d6b68d887ca114f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T00:41:34.765371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/publication.txtobserved f8a92ef7eda44dc4a4f911c8831e580b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:25.322837Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227observed 4c134908ad19d89d1a16457a097ad6bf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:25.270922Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/manifest.jsonobserved a9f56f81b27b813cf50eb8e1a32286d6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:25.215306Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/publication.mdobserved 7f2390f2045523f0d6b68d887ca114f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T04:41:25.141571Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000011227/publication.txtobserved f8a92ef7eda44dc4a4f911c8831e580b...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 |
|---|