OT-2026-000004164
Publication integrity record
Vacuum cup gripper, common isolation valve, four outlet manifold, plant vacuum fed, contact triggered
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-2026-000004164) never changes.
Identity and time
| Publication number | OT-2026-000004164 · never reused |
|---|---|
| Internal UUID | 01a0a90f-bdb6-72c5-9487-4b9be4895ad2 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:12:56.250591Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004164 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6619116db2d178b15333d020dcaf6b804df57370ac4a5a1f7e5f904e2b018e5f |
|---|---|
| Markdown | 22e8356d6aa1d35327bf08f29c7c0e2e7589ae8f70de95cdbba1311a7df6fbbe |
| Publication page | 43259fb805f93f7e92e9c133420ef718aa10997a14cf20517b7247ffc70cd2f7 |
| Manifest | b49e8cd209a75b3bf644879be612d386280bebfdbe7c3991e822039ee1b7a511 |
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 | AooxmiOqPzTJ58XvT2cycH3Cbb14uT7NO1JW6C6KCFWa0CrRkt/yHsYrPMhgHzb78SfKDz6nFc0AqBBDEDFIBQ== |
| 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
| 2026-10-08T20:42:05.583395Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164observed 43259fb805f93f7e92e9c133420ef718...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-08T20:42:05.481002Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/manifest.jsonobserved b49e8cd209a75b3bf644879be612d386...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:42:05.385143Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/publication.mdobserved 22e8356d6aa1d35327bf08f29c7c0e2e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T20:42:05.200015Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/publication.txtobserved 6619116db2d178b15333d020dcaf6b80...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:03.967914Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164observed 43259fb805f93f7e92e9c133420ef718...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:03.919731Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/manifest.jsonobserved b49e8cd209a75b3bf644879be612d386...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:03.867734Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/publication.mdobserved 22e8356d6aa1d35327bf08f29c7c0e2e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-01T00:41:03.717680Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004164/publication.txtobserved 6619116db2d178b15333d020dcaf6b80...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 |
|---|