OT-2026-000054031
Publication integrity record
Two cup vacuum gripper, two zone face, per zone isolation, plant vacuum fed, 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-2026-000054031) never changes.
Identity and time
| Publication number | OT-2026-000054031 · never reused |
|---|---|
| Internal UUID | 01a0ae85-b3a7-7854-a389-ec50dea22ffe · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:39:53.019909Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000054031 |
| Status | PUBLIC |
Content hashes
| Canonical text | b9b4621098ecf35894ab847bd323b3aa596f7295a51f5267d687ace116f359d2 |
|---|---|
| Markdown | 2a0bb4872a1c7317322a572e29b62188cbe0fe84b0e90353c74fa8b8ec033a29 |
| Publication page | 74d1891635eb195d69c7c67c6812ef5e00f5bcac464c18ad775795cf8f5c6d2e |
| Manifest | 9f18288ccd44bdb998bdaa5b96fd57b53cddc4b6947aa47de18900deb06ed9a5 |
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 | ZDanGTllHh88LuSvgYLdX2wRMgc6qvDEvfhCJr5WU4r32aI1r+ckpY6DT45ZoBh7gb35zEEeIhJcMKNYzWRvBA== |
| 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
| 2026-09-25T00:41:24.679431Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031observed 74d1891635eb195d69c7c67c6812ef5e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T00:41:24.629803Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/manifest.jsonobserved 9f18288ccd44bdb998bdaa5b96fd57b5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:24.574460Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/publication.mdobserved 2a0bb4872a1c7317322a572e29b62188...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:24.456288Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/publication.txtobserved b9b4621098ecf35894ab847bd323b3aa...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:07.585014Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031observed 74d1891635eb195d69c7c67c6812ef5e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:07.523070Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/manifest.jsonobserved 9f18288ccd44bdb998bdaa5b96fd57b5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:07.453488Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/publication.mdobserved 2a0bb4872a1c7317322a572e29b62188...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:07.330053Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000054031/publication.txtobserved b9b4621098ecf35894ab847bd323b3aa...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 |
|---|