OT-2026-000053074
Publication integrity record
Foam pad vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000053074) never changes.
Identity and time
| Publication number | OT-2026-000053074 · never reused |
|---|---|
| Internal UUID | 01a0ae84-a431-7012-baa1-e7fddbfff752 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:38:43.524202Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000053074 |
| Status | PUBLIC |
Content hashes
| Canonical text | 89b5bc4866b44c4cb986e997aeafdeb7adbc79780cf19743b608ce46659cbdc2 |
|---|---|
| Markdown | e01bb19ed6beedceff06652dd2390138345c90b2691e574f2687e3a24b297a66 |
| Publication page | 781e83160beca04eadd62f3e27b8ef7a23a41eed1b712257edc3a205a99063cc |
| Manifest | 37c96139a850e69cf3cd1b929d5f1f301b14300f7f6b445862d7a7b4bb213b22 |
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 | etX57KC8wGaeBFqnStfAXYqym7wfthVe0+U4tyxQl1rbW+eZ1KQoCMzyEDFgbkFpV4/stCzHpYDFCLS/ci/jCQ== |
| 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
| 2026-10-15T00:41:23.427491Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074observed 781e83160beca04eadd62f3e27b8ef7a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-15T00:41:23.370607Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/manifest.jsonobserved 37c96139a850e69cf3cd1b929d5f1f30...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:23.319040Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/publication.mdobserved e01bb19ed6beedceff06652dd2390138...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T00:41:23.236320Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/publication.txtobserved 89b5bc4866b44c4cb986e997aeafdeb7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:50.077892Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074observed 781e83160beca04eadd62f3e27b8ef7a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:50.006680Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/manifest.jsonobserved 37c96139a850e69cf3cd1b929d5f1f30...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:49.929049Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/publication.mdobserved e01bb19ed6beedceff06652dd2390138...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T20:41:49.847681Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000053074/publication.txtobserved 89b5bc4866b44c4cb986e997aeafdeb7...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 |
|---|