OT-2026-000078821
Publication integrity record
Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078821) never changes.
Identity and time
| Publication number | OT-2026-000078821 · never reused |
|---|---|
| Internal UUID | 01a0ae95-ccbd-7515-bf4b-2068c2fdd169 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:57:28.017032Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000078821 |
| Status | PUBLIC |
Content hashes
| Canonical text | a8028d3cc2fc650562a32932cd638e91ac4984ce268eb7a5d84526e65296fa8d |
|---|---|
| Markdown | 1f5094534e7a60d03efc628cf21798caa684cb4ac0bfe5065fd169e8244f016b |
| Publication page | 270aac684dd67f1adeb3dd6e4485c9d603f38992af4463fe83f1f000f3906b97 |
| Manifest | bde7d9f37e9792448e018ef43af8607a5f7fc91f765408ab624afdb8bf4f7fd5 |
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 | T5WamdhUamb+bnG0VsV1kMo1kn0v40ooWwJvRIojTaO/arRuBE6dhY84fs02/iyWd6wuoe6ymfmdXO7P57E4BA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-19T12:41:05.578904Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821observed 270aac684dd67f1adeb3dd6e4485c9d6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-19T12:41:05.521243Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/manifest.jsonobserved bde7d9f37e9792448e018ef43af8607a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T12:41:05.440241Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/publication.mdobserved 1f5094534e7a60d03efc628cf21798ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T12:41:05.297593Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/publication.txtobserved a8028d3cc2fc650562a32932cd638e91...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:19.190204Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821observed 270aac684dd67f1adeb3dd6e4485c9d6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:19.083724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/manifest.jsonobserved bde7d9f37e9792448e018ef43af8607a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:19.003899Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/publication.mdobserved 1f5094534e7a60d03efc628cf21798ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T00:41:18.893613Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078821/publication.txtobserved a8028d3cc2fc650562a32932cd638e91...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 |
|---|