OT-2026-000042905
Publication integrity record
Single cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000042905) never changes.
Identity and time
| Publication number | OT-2026-000042905 · never reused |
|---|---|
| Internal UUID | 01a0ae7a-c0d1-7694-a9d9-fb40281ab89e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:55.489038Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000042905 |
| Status | PUBLIC |
Content hashes
| Canonical text | d02b0877e9638400cdee3f0b66e1d6e37a9ca972a62250719e943772d91c4edb |
|---|---|
| Markdown | 57ab9f7e8f041dc486995baac4ce690c12d0f2a88aad2901abc397dd98d4c29f |
| Publication page | 1b50ff9d769768387e2e79e2f643456e64bac12863569eb09efbb3414d7628d2 |
| Manifest | d618f7269ca3484f75e92d81fa9b80b6156f0285befcc3b1b52bc99c02bc4593 |
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 | Pkj+2G933rVbjd4RUy0G8jN3Q9biEgYnG8TlG8XK5PDhbV+5t+ZBBThuRMrPi+iRfK6VW65nuxIRVGzJs58ODg== |
| 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
| 2026-09-26T16:41:28.793740Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905observed 1b50ff9d769768387e2e79e2f643456e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-26T16:41:28.743889Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/manifest.jsonobserved d618f7269ca3484f75e92d81fa9b80b6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:28.690555Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/publication.mdobserved 57ab9f7e8f041dc486995baac4ce690c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-26T16:41:28.639659Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/publication.txtobserved d02b0877e9638400cdee3f0b66e1d6e3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:24.897485Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905observed 1b50ff9d769768387e2e79e2f643456e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:24.879430Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/manifest.jsonobserved d618f7269ca3484f75e92d81fa9b80b6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:24.859844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/publication.mdobserved 57ab9f7e8f041dc486995baac4ce690c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:24.839110Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042905/publication.txtobserved d02b0877e9638400cdee3f0b66e1d6e3...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|