OT-2026-000002990
Publication integrity record
Transformer spreader bar
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-2026-000002990) never changes.
Identity and time
| Publication number | OT-2026-000002990 · never reused |
|---|---|
| Internal UUID | 01a0a67f-ea96-710d-a737-176a6b5f0d65 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:16:36.119144Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002990 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2b9616108deeb81663cb5d76bc642790d7f3f4f71b811d37b3419d576e631ee3 |
|---|---|
| Markdown | 1f8627f7dbd247b548e613651c89b5849d803e0c8d8a278cd010bb19cc4c5980 |
| Publication page | 8d30a062d509c7a99792848b052bf46a7147ba436a382714c6035e152e0ab077 |
| Manifest | 6dbda3d37796d7cd491cc338d20c303931661c14dd9b1d29a29fad1867c16dd4 |
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 | X1NMMMCj6WhDkfMaW+9Pue9VZeK2bqNrPxVY/4vDC5+V/sFXSuhyw9FJ0BHXdXL4G0FJdFnIgayk0lyClOCSCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-21T00:44:05.861917Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990observed 8d30a062d509c7a99792848b052bf46a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-21T00:44:05.725796Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990/manifest.jsonobserved 6dbda3d37796d7cd491cc338d20c3039...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T00:44:05.558303Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990/publication.mdobserved 1f8627f7dbd247b548e613651c89b584...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-21T00:44:05.375761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990/publication.txtobserved 2b9616108deeb81663cb5d76bc642790...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:11.447521Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990observed 8d30a062d509c7a99792848b052bf46a...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:11.417567Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990/manifest.jsonobserved 6dbda3d37796d7cd491cc338d20c3039...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:11.399469Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002990/publication.txtobserved 2b9616108deeb81663cb5d76bc642790...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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