OT-2026-000003305
Publication integrity record
Machine for cutting a workpiece made of styrofoam or like material
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-2026-000003305) never changes.
Identity and time
| Publication number | OT-2026-000003305 · never reused |
|---|---|
| Internal UUID | 01a0a6ad-618e-79bc-bc20-65bf2eb9c2c2 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:06:15.694642Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003305 |
| Status | PUBLIC |
Content hashes
| Canonical text | fcc67d50ec3ada13d854998805ebaddf1c4318ef81dd95f082abed4a18443f1e |
|---|---|
| Markdown | a406d9e1ad0061f3918fa91ec67287662cb19a3ae04e2695d76e5d640475e6d8 |
| Publication page | 9d054c642b6573de7b0cd387db9b6c4bb866ada98fc84ca5fee7521e2457c256 |
| Manifest | 1a863a3db27b6733b53593b055664d430730fff002b4f25aa5e84e1c7d997cbb |
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 | rwrHv7Vtu8sExzjAS+D6Ypz0yeizaM4hYbXzVz9wri/JzNUErtM0eSi/YpFj5vNA4PhRpsCTbRNjzYu4EUFUAQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-15T20:10:05.569842Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003305observed 9d054c642b6573de7b0cd387db9b6c4b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:10:05.511852Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003305/manifest.jsonobserved 1a863a3db27b6733b53593b055664d43...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:05.499194Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003305/publication.txtobserved fcc67d50ec3ada13d854998805ebaddf...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 |
|---|