OT-2026-000000728
Publication integrity record
Method for forming and heat treating near net shape complex structures from sheet metal
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-2026-000000728) never changes.
Identity and time
| Publication number | OT-2026-000000728 · never reused |
|---|---|
| Internal UUID | 01a0a673-bf54-76db-88f8-7a204e8a0d3a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:18.612847Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000728 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2d861f2a662dc02210bdd48062f5b5d8902c1b1db5e703628fa5c1571a03e58b |
|---|---|
| Markdown | 22eccafeec19be1a24d8f2b62766076f1ac46ba743f696a897bac3283fc9acb2 |
| Publication page | a28b1b0a7e60655c568f36ecdb2b4967989cf15f11adf21c1750262a303280d0 |
| Manifest | 6eab7765f8b830d5b6e38731f15daabf88b3fe3a968290847d306c71a1c8fe44 |
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 | F9hgzRZxNWXQGP2ct3elLHuQWNtHRrZwBajGda4AA8TRxA+wusM7ajehohX6YiKFiF/9frwDz2Lg3N4SVTRRDg== |
| 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
| 2026-10-22T04:23:03.082717Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728observed a28b1b0a7e60655c568f36ecdb2b4967...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T04:23:03.069720Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728/manifest.jsonobserved 6eab7765f8b830d5b6e38731f15daabf...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-22T04:23:03.057580Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728/publication.mdobserved 22eccafeec19be1a24d8f2b62766076f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-22T04:23:02.924715Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728/publication.txtobserved 2d861f2a662dc02210bdd48062f5b5d8...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:11.069915Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728observed a28b1b0a7e60655c568f36ecdb2b4967...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:11.041550Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728/manifest.jsonobserved 6eab7765f8b830d5b6e38731f15daabf...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:11.028941Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000728/publication.txtobserved 2d861f2a662dc02210bdd48062f5b5d8...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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