OT-2026-000007485
Publication integrity record
Vacuum cup gripper, three stage ejector, pressure verified, vented after set down, rubber cups
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-2026-000007485) never changes.
Identity and time
| Publication number | OT-2026-000007485 · never reused |
|---|---|
| Internal UUID | 01a0a980-8e5a-717b-bf0d-1e636615d1cc · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T09:16:09.692875Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000007485 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4ee5cd4cd787e14cdf2b1e2ec77f6a317b50fa7efd2288aae538759ce2e35b70 |
|---|---|
| Markdown | 871dc44a35e70e6fc518c99c4c8abf59595d6108f2ba8d08b816c568482b8487 |
| Publication page | b5416ad2abd98514133d8682d7d961d4b17639b8e3b1831e185e374cead1ee64 |
| Manifest | ef9b07dc2bb5455b6afec38437c58ab88e79582c5dea7984690b31e513a49b4c |
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 | kmWzYSWzR62j7Mo0N4Bm6Gi/kAUg1QehGGqo3/l80cfBCUNUOYjlNxHLZHhFviZLgw5zcWmrcHi8IJciBG9DDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T09:20:33Z batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof root 07bfbe2fb3517c1c41f239fb2e682fbe... |
|---|
Independent retrieval
| 2026-10-31T12:41:43.222039Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485observed b5416ad2abd98514133d8682d7d961d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T12:41:43.153699Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/manifest.jsonobserved ef9b07dc2bb5455b6afec38437c58ab8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T12:41:43.084410Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/publication.mdobserved 871dc44a35e70e6fc518c99c4c8abf59...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T12:41:42.965125Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/publication.txtobserved 4ee5cd4cd787e14cdf2b1e2ec77f6a31...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T04:41:30.473559Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485observed b5416ad2abd98514133d8682d7d961d4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T04:41:30.427719Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/manifest.jsonobserved ef9b07dc2bb5455b6afec38437c58ab8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T04:41:30.380469Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/publication.mdobserved 871dc44a35e70e6fc518c99c4c8abf59...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T04:41:30.266446Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000007485/publication.txtobserved 4ee5cd4cd787e14cdf2b1e2ec77f6a31...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 |
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