OT-2026-000028068
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, 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-2026-000028068) never changes.
Identity and time
| Publication number | OT-2026-000028068 · never reused |
|---|---|
| Internal UUID | 01a0ae72-a520-786b-a735-2351b0d4e8b1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:04.113553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028068 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5d69de4b2032d9e83d0dd8432459a5d8f1b93c1e129bab363bf82f6277b819ab |
|---|---|
| Markdown | 634d387c759bd9e773badc40a080ab4b86831e516601afea1e7f5839ea19d95c |
| Publication page | dd8b7e90fff32c2bc251a8352203bbda3a97cc73511bc74420201823ac79a1b3 |
| Manifest | 525e71905899d0efb488b3b4d1e5fba01bfefca926880ea553069fdb46f757cb |
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 | +BLY0ZDE0YXD6vbbyUrOAlW107GSDdniyJPuCDKJDfjl53d8ThmPcPSH056Hg8RP9FxcQDP6N+6KB3fucWtyDg== |
| 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
| 2026-10-28T20:41:57.178795Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068observed dd8b7e90fff32c2bc251a8352203bbda...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T20:41:57.103479Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/manifest.jsonobserved 525e71905899d0efb488b3b4d1e5fba0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T20:41:57.030915Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/publication.mdobserved 634d387c759bd9e773badc40a080ab4b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T20:41:56.961918Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/publication.txtobserved 5d69de4b2032d9e83d0dd8432459a5d8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:41:08.134926Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068observed dd8b7e90fff32c2bc251a8352203bbda...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:41:08.082747Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/manifest.jsonobserved 525e71905899d0efb488b3b4d1e5fba0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:41:08.021653Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/publication.mdobserved 634d387c759bd9e773badc40a080ab4b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T04:41:07.936389Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028068/publication.txtobserved 5d69de4b2032d9e83d0dd8432459a5d8...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 |
|---|