OT-2026-000017451
Publication integrity record
Four bellows cup vacuum gripper, four zone face, four outlet manifold, two stage ejector, 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-2026-000017451) never changes.
Identity and time
| Publication number | OT-2026-000017451 · never reused |
|---|---|
| Internal UUID | 01a0ae6e-76c9-79a4-bcc5-38a48aa2d229 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:14:30.105855Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000017451 |
| Status | PUBLIC |
Content hashes
| Canonical text | 873cd48c020bcd1947481e8c24db330b60c2fa9a8f8fa9acb34b386105839b19 |
|---|---|
| Markdown | 619ae392fb0cdbd34b2c717449bf7c79e45517986f345341a4fcd61766fd42b0 |
| Publication page | 1f837925d7cb239ec5cb41237929f53c9e8876321f9bc209362c7ab404753bc2 |
| Manifest | ab3d5efbc5500fe074c011e2fbc1f54f977c87578496d095bf90f7c9741ec1de |
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 | Nqrgz+2O02Pqo7lBbwZTz8NAFBvjWOPH9SPrxUczh9zZo1zGoY48vopeYxWP476GZq7G6WqzXtoYOCYFjjq8Dw== |
| 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
| 2026-10-24T08:41:29.073564Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451observed 1f837925d7cb239ec5cb41237929f53c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-24T08:41:28.996073Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/manifest.jsonobserved ab3d5efbc5500fe074c011e2fbc1f54f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T08:41:28.920067Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/publication.mdobserved 619ae392fb0cdbd34b2c717449bf7c79...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T08:41:28.848665Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/publication.txtobserved 873cd48c020bcd1947481e8c24db330b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:42:17.470145Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451observed 1f837925d7cb239ec5cb41237929f53c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:42:17.323240Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/manifest.jsonobserved ab3d5efbc5500fe074c011e2fbc1f54f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:42:17.230268Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/publication.mdobserved 619ae392fb0cdbd34b2c717449bf7c79...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T00:42:17.137874Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000017451/publication.txtobserved 873cd48c020bcd1947481e8c24db330b...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 |
|---|