OT-2026-000090295
Publication integrity record
Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000090295) never changes.
Identity and time
| Publication number | OT-2026-000090295 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-4290-7a07-a5b4-a3abf56a1ae0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:31.390046Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090295 |
| Status | PUBLIC |
Content hashes
| Canonical text | a31bd4d7c7e3811ca774fb320fe8669b524157ccb6a966720d26486398e3c07a |
|---|---|
| Markdown | f6e50b2654c873304abcc8a9a618c3fa8bd380f22efbd11eeed52d2193610c54 |
| Publication page | a5aba83b65a4cc12852d6832f8aa0c75cfe11a450b3f1d0ee59b60bd77b40afe |
| Manifest | 73d003951efd85486c5d50cde03d7f28f08f63eef7f046a2fcf237d9a0cd2429 |
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 | XAhmTbugWvzhKZacSEFrhMzdCUzFRAgAlqLgZF/NDIQ07t56dA+t7GVKGoVo6beNFx3+/y4m8aRABqzQNwWdDQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
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Independent retrieval
| 2026-11-03T00:41:11.751641Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295observed a5aba83b65a4cc12852d6832f8aa0c75...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-03T00:41:11.654578Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/manifest.jsonobserved 73d003951efd85486c5d50cde03d7f28...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-03T00:41:11.572866Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/publication.mdobserved f6e50b2654c873304abcc8a9a618c3fa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-03T00:41:11.493382Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/publication.txtobserved a31bd4d7c7e3811ca774fb320fe8669b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:42.382722Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295observed a5aba83b65a4cc12852d6832f8aa0c75...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:42.294551Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/manifest.jsonobserved 73d003951efd85486c5d50cde03d7f28...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:42.209097Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/publication.mdobserved f6e50b2654c873304abcc8a9a618c3fa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-30T20:41:42.077502Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090295/publication.txtobserved a31bd4d7c7e3811ca774fb320fe8669b...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 |
|---|