OT-2026-000028389
Publication integrity record
Four cup vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000028389) never changes.
Identity and time
| Publication number | OT-2026-000028389 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f5-7524-b796-68444ef25e3e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028389 |
| Status | PUBLIC |
Content hashes
| Canonical text | 943e09236db16e598ab2425890f55c577f41eb02a5a036845faca8c065fca100 |
|---|---|
| Markdown | f99aab49e14a8579316744786b8e3d98a90e97f03c38177b2bb01162df695ddf |
| Publication page | 89d65162d489fcef111d3f85518da7680182c75e43b5edaf6ea01aff760cfb7c |
| Manifest | 909c4bdcdf78fa484dede5faf7951cdf0c5e62026e90fd16f304d43201100d3e |
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 | ojlK1enNvHxxjz4u9Qc8aoCr0mRv0lnqaMn/CRF68W1o36d6UosDnvwnmdNLLSJTpMUbkLEXP7LkiC7XzrQoBw== |
| 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
| 2026-10-16T16:42:07.046206Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389observed 89d65162d489fcef111d3f85518da768...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-16T16:42:06.972960Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/manifest.jsonobserved 909c4bdcdf78fa484dede5faf7951cdf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T16:42:06.894790Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/publication.mdobserved f99aab49e14a8579316744786b8e3d98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-16T16:42:06.742285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/publication.txtobserved 943e09236db16e598ab2425890f55c57...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:47.201746Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389observed 89d65162d489fcef111d3f85518da768...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:47.145008Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/manifest.jsonobserved 909c4bdcdf78fa484dede5faf7951cdf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:47.073404Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/publication.mdobserved f99aab49e14a8579316744786b8e3d98...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:46.909176Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028389/publication.txtobserved 943e09236db16e598ab2425890f55c57...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 |
|---|