OT-2026-000000143
Publication integrity record
Display device displaying surface roughness of workpiece
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-2026-000000143) never changes.
Identity and time
| Publication number | OT-2026-000000143 · never reused |
|---|---|
| Internal UUID | 01a0a673-0a1b-708a-89fc-480e9abcde50 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:32.219667Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000143 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1d38b7990f0ad8c884ec1ec66982c1928163d56b64b39cf6a5d09dff8247c1e7 |
|---|---|
| Markdown | 883749d367c3a9141f0e1079e4504a22a8360d3863d9f94173f932df8d46c225 |
| Publication page | dd43c6a9bdc0481165bae0d819f7244e4bf25d1e620cb5caf4e650503ec36d28 |
| Manifest | d41cf5160be72375f937d99e5d6d21b592c5c75aa671edf8a23394d1d1d2e42a |
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 | AEyOGrJcLB5QMMGCZyTgvsg94/nKdjAZL46GcV1JGe1y6gs4zlKJRowNsOr1q926HU95X0kxudN4kkTvOHb6CQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-16T04:23:13.623664Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143observed dd43c6a9bdc0481165bae0d819f7244e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:23:13.607513Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143/manifest.jsonobserved d41cf5160be72375f937d99e5d6d21b5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:13.592421Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143/publication.mdobserved 883749d367c3a9141f0e1079e4504a22...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:13.550973Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143/publication.txtobserved 1d38b7990f0ad8c884ec1ec66982c192...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:07.398555Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143observed dd43c6a9bdc0481165bae0d819f7244e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:07.372129Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143/manifest.jsonobserved d41cf5160be72375f937d99e5d6d21b5...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:07.361363Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000143/publication.txtobserved 1d38b7990f0ad8c884ec1ec66982c192...fetched by instance-3.rotem.ai from 127.0.0.1, 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 |
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