OT-2026-000003448
Publication integrity record
Vacuum resin impregnation process
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-2026-000003448) never changes.
Identity and time
| Publication number | OT-2026-000003448 · never reused |
|---|---|
| Internal UUID | 01a0a6c2-1242-72aa-af35-b9b57c3e58e6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:28:51.650478Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003448 |
| Status | PUBLIC |
Content hashes
| Canonical text | da6b01153b52d36a2b7cf7fe232167539ef6f5f16b17ad30e347bc415efb784a |
|---|---|
| Markdown | 9b01d0f75dceae6daaeac4ee64b13e526189661fe2587ffe6ce8723441723b4b |
| Publication page | c531eb4545d8b8e8263e0d6b1f1a4d4d404f8df78b0295e67aef9a121f8e3cb3 |
| Manifest | feb378588b55ccab9ffd3e64e3860cf481de3c5cc7eef5227406f126401fe4cf |
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 | f/phIP5x94vY/8MHuyt3htHsGjc7yOqAlZxcXEGv4NjJQr/bQXCJSOslhmZpGYKYDwKl32kcLbqVSQoWWotVDQ== |
| 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
| 2026-09-15T20:30:04.200885Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003448observed c531eb4545d8b8e8263e0d6b1f1a4d4d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:30:04.172665Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003448/manifest.jsonobserved feb378588b55ccab9ffd3e64e3860cf4...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:04.158913Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003448/publication.txtobserved da6b01153b52d36a2b7cf7fe23216753...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 |
|---|