OT-2026-000000439
Publication integrity record
Removing mill scale from a tubular
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-2026-000000439) never changes.
Identity and time
| Publication number | OT-2026-000000439 · never reused |
|---|---|
| Internal UUID | 01a0a673-5bd0-73b7-8be0-fb2b648c0954 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:53.137533Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000439 |
| Status | PUBLIC |
Content hashes
| Canonical text | 56db5638277edc4bc98fff30e1a12f859a778a8c69e1471c88a04c92d09d9d8c |
|---|---|
| Markdown | 55e3793263049759e2cba01466d654f13b9599a3c28631731025aa4f4688bae7 |
| Publication page | d39105b756bcdc7b9c43936125ee1c8e292d4f0e3233d02bfd3537e053ef8a22 |
| Manifest | c5bb3aad2d977d77134317a873d828626e1d3a18ad2dab94ca29877a4f4d4373 |
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 | 9gVQE0sTrqHvHhsn2pcX9CQ1oQNuh/j4a48swk28KO3cxZECVV8zXSbm0V6W151TxqHq42LN3ossoNVaEbeWCA== |
| 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
| 2026-10-09T16:41:30.767411Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439observed d39105b756bcdc7b9c43936125ee1c8e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-09T16:41:30.665356Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/manifest.jsonobserved c5bb3aad2d977d77134317a873d82862...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:30.522681Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/publication.mdobserved 55e3793263049759e2cba01466d654f1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-09T16:41:30.313017Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/publication.txtobserved 56db5638277edc4bc98fff30e1a12f85...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T04:23:36.325881Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439observed d39105b756bcdc7b9c43936125ee1c8e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-18T04:23:36.311427Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/manifest.jsonobserved c5bb3aad2d977d77134317a873d82862...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-18T04:23:36.296235Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/publication.mdobserved 55e3793263049759e2cba01466d654f1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-18T04:23:36.239122Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000439/publication.txtobserved 56db5638277edc4bc98fff30e1a12f85...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|