OT-2026-000000438
Publication integrity record
Method for producing a brake disc
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-2026-000000438) never changes.
Identity and time
| Publication number | OT-2026-000000438 · never reused |
|---|---|
| Internal UUID | 01a0a673-5b81-7710-b5c2-7d0ebf5c67dc · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:53.058150Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000438 |
| Status | PUBLIC |
Content hashes
| Canonical text | e8585cbadfa4f31edb196efe592dc7543dcde8b65c3f2924b98c997f2e141c4d |
|---|---|
| Markdown | c043a5c545243adc34a3746cbac574a4db889391f5dec7c5e58f3a7c5033ca5a |
| Publication page | 64271efc351077c969493a5069202c0cc00d028d40671b1dc9aadf75dfdc26e4 |
| Manifest | bcdcbb5c42916e9081e763eb9673241d7fc8f3778e277c567b5d651727efe83f |
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 | NImMowA3Ac9pTRg93Aml3928TmLs2r7BAWnJ1/M5Nm9Ik08wVkBfGPSswQJLILDd77dzPh2nQf3rYZJTNMHjCQ== |
| 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
| 2026-09-15T20:50:09.768224Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000438observed 64271efc351077c969493a5069202c0c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:09.737135Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000438/manifest.jsonobserved bcdcbb5c42916e9081e763eb9673241d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:09.601920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000438/publication.txtobserved e8585cbadfa4f31edb196efe592dc754...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 |
|---|