OT-2026-000055831
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, two stage ejector, supply line pressure sensor, pulsed 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-2026-000055831) never changes.
Identity and time
| Publication number | OT-2026-000055831 · never reused |
|---|---|
| Internal UUID | 01a0ae87-0a49-7fc2-a65d-4032cf853dab · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:41:20.734835Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000055831 |
| Status | PUBLIC |
Content hashes
| Canonical text | 545312cdd2075777a312e67edd05581b32d4656a1be109f3e7c4b7520c4ed012 |
|---|---|
| Markdown | a82dcab1734ed2ecfb656a2b69871f3aec8b3834c73e6e5216726077954eced3 |
| Publication page | 8dfb98dc0e2bc88628d1daeba5b22edfee56c5652ae142b300a864a67192be77 |
| Manifest | 45bdddf0cfac349b5004451a3ce752f2b3870afd865875ce5e08988ee0d8e15b |
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 | SZ6UUTjBHsU6qEQr9SHNWFZqjrMBjpViQMvq1Ua7TQjczJY+yDL7fS1QuO2IEapcnT+MooeMqgSzbYlFPoVjBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:47:04Z batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof root 954df3475fbcfbe27467725cfb2ec919... |
|---|---|
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
Independent retrieval
| 2026-10-31T20:41:22.140410Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831observed 8dfb98dc0e2bc88628d1daeba5b22edf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-31T20:41:22.091791Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/manifest.jsonobserved 45bdddf0cfac349b5004451a3ce752f2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T20:41:22.023797Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/publication.mdobserved a82dcab1734ed2ecfb656a2b69871f3a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-31T20:41:21.925735Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/publication.txtobserved 545312cdd2075777a312e67edd05581b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:10.555962Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831observed 8dfb98dc0e2bc88628d1daeba5b22edf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:10.480004Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/manifest.jsonobserved 45bdddf0cfac349b5004451a3ce752f2...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:10.386194Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/publication.mdobserved a82dcab1734ed2ecfb656a2b69871f3a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T08:41:10.277273Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000055831/publication.txtobserved 545312cdd2075777a312e67edd05581b...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 |
|---|