OT-2026-000078021
Publication integrity record
Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum 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-2026-000078021) never changes.
Identity and time
| Publication number | OT-2026-000078021 · never reused |
|---|---|
| Internal UUID | 01a0ae95-2f44-7410-8468-ad0edd6ef3d4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:56:47.703064Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000078021 |
| Status | PUBLIC |
Content hashes
| Canonical text | 300bb61c98f926268105084d998e0367c09f905a712b684d019ee90bfe54083a |
|---|---|
| Markdown | 4e337ddfb8b85fe6c667e5365fa32ab5662612eabbe2390ade19aa5f035877c7 |
| Publication page | 56c2d4ba5e51ff785a8e5b630c01e5f545720db3f724617c1115580c955cf5ec |
| Manifest | 68f40b5c8ef9fcc166de937ef058b421b1ee7fa41cb04f1b3bf96ef20839c67d |
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 | qHharjNpD5fTnHmFuJPh13RZuxhklwPNPfPbryTbfjQXXAg6h3LQtXPzCH0gDbrM/T7BrcSlcAJuzkA1iBkFBA== |
| 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
| 2026-10-16T04:41:28.143770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021observed 56c2d4ba5e51ff785a8e5b630c01e5f5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T04:41:28.088198Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/manifest.jsonobserved 68f40b5c8ef9fcc166de937ef058b421...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T04:41:28.031239Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/publication.mdobserved 4e337ddfb8b85fe6c667e5365fa32ab5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T04:41:27.973564Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/publication.txtobserved 300bb61c98f926268105084d998e0367...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:28.471069Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021observed 56c2d4ba5e51ff785a8e5b630c01e5f5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:28.399892Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/manifest.jsonobserved 68f40b5c8ef9fcc166de937ef058b421...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:28.327110Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/publication.mdobserved 4e337ddfb8b85fe6c667e5365fa32ab5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:28.205805Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000078021/publication.txtobserved 300bb61c98f926268105084d998e0367...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 |
|---|