OT-2026-000003486
Publication integrity record
Machine supports made from acrylic concrete
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-2026-000003486) never changes.
Identity and time
| Publication number | OT-2026-000003486 · never reused |
|---|---|
| Internal UUID | 01a0a6c6-a45b-7b4b-ad3a-ebae26f2ed89 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:33:51.195411Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003486 |
| Status | PUBLIC |
Content hashes
| Canonical text | 08c3f0175d6669e9e00d8dca09e3182412ee7124338baddbcb9ed63ad5fb5fa1 |
|---|---|
| Markdown | 0acd66903cfa0d792bc3a69eea8bb7f2b78539b7d829bb8cb5ceeebe99581635 |
| Publication page | c48b106a7d7d57b06c20f906ac4f6e0db2c767bafc1c2af63afcd1d7b1e09eb7 |
| Manifest | 9665037fa33c52b80fa39e247c23caa8bafee8f7ba74d2e3c91173b99d114a9e |
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 | PnzACv4E5WGWn+8QILvvxOgrhlTQip24M8OlwMusnphdbt/GWq5EiZSw3dRLEEr361Zw86jOdm/Gu/S2rWf7DQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:36:25Z batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof root 40fdb380c9f41bd58bb35c455dde2c7d... |
|---|
Independent retrieval
| 2026-09-15T20:40:04.016336Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003486observed c48b106a7d7d57b06c20f906ac4f6e0d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:40:03.984543Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003486/manifest.jsonobserved 9665037fa33c52b80fa39e247c23caa8...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:03.970687Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003486/publication.txtobserved 08c3f0175d6669e9e00d8dca09e31824...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 |
|---|