OT-2026-000000271
Publication integrity record
Method for tracing forged parts over the entire production process, in particular from the forging process, via sandblasting and heat treatment, to mechanical processing
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-2026-000000271) never changes.
Identity and time
| Publication number | OT-2026-000000271 · never reused |
|---|---|
| Internal UUID | 01a0a673-2d12-714b-9e9a-9fa67654b56f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:41.170648Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000271 |
| Status | PUBLIC |
Content hashes
| Canonical text | c0da7aef81da68451ece91bb2cb72aeac9e673405ab1b0d986effc58215249a6 |
|---|---|
| Markdown | 6c27f26a0717962d7d21b2ac64a49628daed5606337329ceb28066d00ce42ea0 |
| Publication page | db921c7f6ce3683c65428617006dd952fc5141b6ba01015df6ac51b6e502795f |
| Manifest | 17bca46c1a4ac52a2f3567f9a64e5f1c17af9d0c5966f2aaf0ae3344d3713f95 |
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 | CElzdsVja81jL29BvmR7ICTFMKtSNitLzwOAgVlwd7xb8v3uW3R3+Lzc4PCXUJ+Pp6RElV8hjcXZpnMO3+D9Bg== |
| 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
| 2026-09-25T16:41:03.679761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271observed db921c7f6ce3683c65428617006dd952...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T16:41:03.597428Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271/manifest.jsonobserved 17bca46c1a4ac52a2f3567f9a64e5f1c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:03.529382Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271/publication.mdobserved 6c27f26a0717962d7d21b2ac64a49628...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T16:41:03.321304Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271/publication.txtobserved c0da7aef81da68451ece91bb2cb72aea...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:29.514244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271observed db921c7f6ce3683c65428617006dd952...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:29.359982Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271/manifest.jsonobserved 17bca46c1a4ac52a2f3567f9a64e5f1c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:29.346338Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000271/publication.txtobserved c0da7aef81da68451ece91bb2cb72aea...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 |
|---|