OT-2026-000000442
Publication integrity record
Cable length measurement device
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-2026-000000442) never changes.
Identity and time
| Publication number | OT-2026-000000442 · never reused |
|---|---|
| Internal UUID | 01a0a673-5ca3-785f-8d99-914da59b14cb · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:53.348114Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000442 |
| Status | PUBLIC |
Content hashes
| Canonical text | 09f6979e4bfb20f0dc4886cec794d7a71b3bc4c31b046c727c892fd0c8eaa1d7 |
|---|---|
| Markdown | c3945e933ac106ba783328f8c34c5925f6f8b2afc8c4752f2792eff45ede4fa6 |
| Publication page | f046c96313b8a6651f9d91cbb1d7a8ef007c1aeca05718e6fde00b42f0fe8fe9 |
| Manifest | 9b90870b794b7373e66aeaf12122663fa8ebb1191d63ae29fc7f16c1e56b63aa |
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 | DN/sGprWD7qjqRt89U+b25ST9UmNjTn9AbCJdIegAgbEKPvHDJeVQDhTF2FoQ8bKkq3OXsmSlTifQEOT6qcyBA== |
| 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
| 2026-09-15T20:50:09.268817Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000442observed f046c96313b8a6651f9d91cbb1d7a8ef...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:09.237477Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000442/manifest.jsonobserved 9b90870b794b7373e66aeaf12122663f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:09.102147Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000442/publication.txtobserved 09f6979e4bfb20f0dc4886cec794d7a7...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 |
|---|