OT-2026-000050921
Publication integrity record
Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, vented 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-2026-000050921) never changes.
Identity and time
| Publication number | OT-2026-000050921 · never reused |
|---|---|
| Internal UUID | 01a0ae82-c7b3-7a05-a733-07b43b7848e6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:36:41.548889Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000050921 |
| Status | PUBLIC |
Content hashes
| Canonical text | 832c8e3899870fb5b2149560c0ddfcd99b752fccc89da082980c64ac72a15ed9 |
|---|---|
| Markdown | 1172858de10db5ce9c69ce71d96abe7ea59afc092d462cd03c08cef37f1c909d |
| Publication page | 2c212ecd742ce39262addcde02acf3027fd59f02fa5ad1ae6d95624e20cc90ca |
| Manifest | ef60338ff4209cec9f91bd3ef85e15f5348ef104fc07588d68b14a4c8b75f818 |
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 | kzReFlQwcJdffo54FS9cxGfeGurBd96S6dK9j0MBtWLHrfWA5WKXn9ACORKOeiRmHMSq11rNcTDKVrtT/5RCCg== |
| 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
| 2026-10-20T04:41:07.614430Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921observed 2c212ecd742ce39262addcde02acf302...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-20T04:41:07.545633Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921/manifest.jsonobserved ef60338ff4209cec9f91bd3ef85e15f5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T04:41:07.480668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921/publication.mdobserved 1172858de10db5ce9c69ce71d96abe7e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-20T04:41:07.405237Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921/publication.txtobserved 832c8e3899870fb5b2149560c0ddfcd9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:00:40.788437Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921observed 2c212ecd742ce39262addcde02acf302...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:00:40.768724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921observed 2c212ecd742ce39262addcde02acf302...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:00:40.767131Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921/manifest.jsonobserved ef60338ff4209cec9f91bd3ef85e15f5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:00:40.747065Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000050921/manifest.jsonobserved ef60338ff4209cec9f91bd3ef85e15f5...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 |
|---|