OT-2026-000005880
Publication integrity record
Vacuum cup gripper, two zone face, pump fed, pressure verified
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-2026-000005880) never changes.
Identity and time
| Publication number | OT-2026-000005880 · never reused |
|---|---|
| Internal UUID | 01a0a947-f1fd-7aae-92f0-c949a57b9727 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T08:14:19.648281Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000005880 |
| Status | PUBLIC |
Content hashes
| Canonical text | 88eede3f77556da86e73e2900bb2d37e14c2feb0502978296ed8b1cd11f7f6bf |
|---|---|
| Markdown | d1eba53d59ae50687c59bab3318f3073f8e66eb7110ea63dd408ac13d6e5c580 |
| Publication page | ab42fb1c0297a07dde8e31b9c956841aa22d9ff1a88c5982c95dcb564785a90d |
| Manifest | 8aa69c7eed08f60de9180309289ff12790abad5fd0b96b9e165b8651626d2cb3 |
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 | gc2fQhBUjt67XCDAJ2Q5W13tSC30ibND1e739ZeZAlMOaB52nWBt1Vz1crDcLEVRDMf5FhLXMJbAtuAQBH8DBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T08:27:03Z batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof root dbe93cb6b2158496df2f60f3b6822537... |
|---|
Independent retrieval
| 2026-10-11T08:41:03.647086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880observed ab42fb1c0297a07dde8e31b9c956841a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T08:41:03.574797Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/manifest.jsonobserved 8aa69c7eed08f60de9180309289ff127...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:03.490911Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/publication.mdobserved d1eba53d59ae50687c59bab3318f3073...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:03.343257Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/publication.txtobserved 88eede3f77556da86e73e2900bb2d37e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T16:42:27.803599Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880observed ab42fb1c0297a07dde8e31b9c956841a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T16:42:27.654436Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/manifest.jsonobserved 8aa69c7eed08f60de9180309289ff127...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T16:42:27.371489Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/publication.mdobserved d1eba53d59ae50687c59bab3318f3073...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T16:42:27.018957Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000005880/publication.txtobserved 88eede3f77556da86e73e2900bb2d37e...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 |
|---|