OT-2026-000028808
Publication integrity record
Three bellows cup vacuum gripper, three outlet manifold, single stage ejector, 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-2026-000028808) never changes.
Identity and time
| Publication number | OT-2026-000028808 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2252-7af5-922c-9dcdd2c305c6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:36.158293Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028808 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2302203bce5ff6df1651dde332b63d4336fe1a7b2923983dc63a13a6432f0dca |
|---|---|
| Markdown | 023d1f07fbd6592fec89bc51bbaa92b73d0c3217ad25f6c6f947bc5a375eabea |
| Publication page | c670f0d0cc6d3e04c756eefdb7e42aad46b5fa5fc4c6b71b8d359851e68d525b |
| Manifest | 71b0a19ef2476904dc49944de761022323ec0785ea333f387cb5a4f1d81101cb |
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 | yT4yNYM7EobZc4ZTN4OQtLdMQ5t2aLv82RjTkqUu+gRF7qcuNxwrZ8qF1Yub6yJrIx7KwjMGFQHvd7hlf2FCAw== |
| 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
| 2026-09-21T20:41:47.626126Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808observed c670f0d0cc6d3e04c756eefdb7e42aad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T20:41:47.576629Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/manifest.jsonobserved 71b0a19ef2476904dc49944de7610223...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T20:41:47.524295Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/publication.mdobserved 023d1f07fbd6592fec89bc51bbaa92b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T20:41:47.449321Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/publication.txtobserved 2302203bce5ff6df1651dde332b63d43...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T00:41:58.561584Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808observed c670f0d0cc6d3e04c756eefdb7e42aad...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T00:41:58.293432Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/manifest.jsonobserved 71b0a19ef2476904dc49944de7610223...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T00:41:58.168187Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/publication.mdobserved 023d1f07fbd6592fec89bc51bbaa92b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T00:41:57.834524Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028808/publication.txtobserved 2302203bce5ff6df1651dde332b63d43...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 |
|---|