OT-2026-000004117
Publication integrity record
Porous face vacuum gripper, per zone isolation, four outlet manifold, plant vacuum 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-2026-000004117) never changes.
Identity and time
| Publication number | OT-2026-000004117 · never reused |
|---|---|
| Internal UUID | 01a0a90f-286e-7962-a988-a6588d025352 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:12:18.034076Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004117 |
| Status | PUBLIC |
Content hashes
| Canonical text | 023e66016aeab5a0318782ab847ec6b961ea822064e4a4204c197c005efe9f3c |
|---|---|
| Markdown | c10d2eff5c7f4f9dd61a663089cd213afbe2eb79571f78abd95ea0b9b52cb883 |
| Publication page | 784f6305151c712d255759e1ed182d5427718ac16c1e1c00bb2c44c6cf15ad76 |
| Manifest | 3231d9021cc1506ae1cb6797cf9cec243c7eabda4f714d54294e946d3c79e96c |
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 | FNE/VVay4ZStgCbxKRppqn/79NYcYLvC30i8lIQSH0oc5AFUioXOWp/SFPwhL+BsxkI4D6iBXIJCTN2yvKLxDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-26T16:41:28.684250Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117observed 784f6305151c712d255759e1ed182d54...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-26T16:41:28.612643Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/manifest.jsonobserved 3231d9021cc1506ae1cb6797cf9cec24...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T16:41:28.542968Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/publication.mdobserved c10d2eff5c7f4f9dd61a663089cd213a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-26T16:41:28.235518Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/publication.txtobserved 023e66016aeab5a0318782ab847ec6b9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:11.961945Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117observed 784f6305151c712d255759e1ed182d54...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:11.917754Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/manifest.jsonobserved 3231d9021cc1506ae1cb6797cf9cec24...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:11.871170Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/publication.mdobserved c10d2eff5c7f4f9dd61a663089cd213a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T12:41:11.728765Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004117/publication.txtobserved 023e66016aeab5a0318782ab847ec6b9...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 |
|---|