OT-2026-000049574
Publication integrity record
Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, sustained blow-off after 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-2026-000049574) never changes.
Identity and time
| Publication number | OT-2026-000049574 · never reused |
|---|---|
| Internal UUID | 01a0ae81-8f7d-764f-89fe-945c2dacb7e3 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:35:21.728203Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000049574 |
| Status | PUBLIC |
Content hashes
| Canonical text | cff51303c1570498958ca8c94fae78148bebf1eed83b3150d1195c2ca3d3df4c |
|---|---|
| Markdown | 1a5e2e00806cad7c52acf239641d8b362fe491529a1f725afd3f800260b2304c |
| Publication page | 35d9a0d8215c97c409911abd867aa5cf852b99cbb51ecaede7ed53431ed0449a |
| Manifest | 9512a861eb136cadb17be4834eea7b1e220301663ff170a31b7ba706a5ecb27b |
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 | nnnSuroCF4QIDb2UxvZ895nWd9kkjVMiBdNu2jp91HQWJPO6OeiaHx1JXczTYGPgv3FJhQvxNSebU92twKPvBg== |
| 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
| 2026-10-23T12:42:08.013368Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574observed 35d9a0d8215c97c409911abd867aa5cf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T12:42:07.939524Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/manifest.jsonobserved 9512a861eb136cadb17be4834eea7b1e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:42:07.849285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/publication.mdobserved 1a5e2e00806cad7c52acf239641d8b36...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:42:07.759519Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/publication.txtobserved cff51303c1570498958ca8c94fae7814...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T00:41:04.345687Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574observed 35d9a0d8215c97c409911abd867aa5cf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T00:41:04.231345Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/manifest.jsonobserved 9512a861eb136cadb17be4834eea7b1e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T00:41:04.129644Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/publication.mdobserved 1a5e2e00806cad7c52acf239641d8b36...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T00:41:03.980987Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000049574/publication.txtobserved cff51303c1570498958ca8c94fae7814...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 |
|---|