OT-2026-000004822
Publication integrity record
Porous face vacuum gripper, two zone face, pump fed, vented after set down, open cell
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-2026-000004822) never changes.
Identity and time
| Publication number | OT-2026-000004822 · never reused |
|---|---|
| Internal UUID | 01a0a924-6d61-7b49-84ab-387ea9377fe4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:35:31.939824Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004822 |
| Status | PUBLIC |
Content hashes
| Canonical text | d2ea4b35c49caa1bcb2db61f04378c6eaab93cc20378d59757d21ea8401af93d |
|---|---|
| Markdown | f831a9a05366c317ec3efb619d8b9df3eca7c45731f807d4a79d6cd621224d16 |
| Publication page | f2605746cda1cf5064094ffca3c8136db9dfaf4aad85e5884a017f8951aa72e9 |
| Manifest | d7e2fc407c3b55670233efd86aa4d97cd5ca92a479347bd140b623bdcf3a9920 |
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 | 8ebbpQlV+Pmdxz8LylTIYf/N5ollbwXKAJ+FRMrQKprGTY54prXBw/Rzs9GNRhk0AiS+2UnWlqAnljXodzVLCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
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Independent retrieval
| 2026-10-28T16:41:37.964091Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822observed f2605746cda1cf5064094ffca3c8136d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T16:41:37.855728Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/manifest.jsonobserved d7e2fc407c3b55670233efd86aa4d97c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:37.767743Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/publication.mdobserved f831a9a05366c317ec3efb619d8b9df3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T16:41:37.548180Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/publication.txtobserved d2ea4b35c49caa1bcb2db61f04378c6e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T20:41:08.146375Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822observed f2605746cda1cf5064094ffca3c8136d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T20:41:08.070834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/manifest.jsonobserved d7e2fc407c3b55670233efd86aa4d97c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T20:41:07.990350Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/publication.mdobserved f831a9a05366c317ec3efb619d8b9df3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T20:41:07.759605Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004822/publication.txtobserved d2ea4b35c49caa1bcb2db61f04378c6e...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 |
|---|