OT-2026-000002981
Publication integrity record
Building elevating system
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-2026-000002981) never changes.
Identity and time
| Publication number | OT-2026-000002981 · never reused |
|---|---|
| Internal UUID | 01a0a67f-dcd2-7620-bfe9-203953617f2f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:16:32.594774Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002981 |
| Status | PUBLIC |
Content hashes
| Canonical text | b6c049582980bb9d37067519c49b3406f636339342bb06b2428922bedc893b60 |
|---|---|
| Markdown | ca33058747b4136b1fee9f2b64dbbe7f954982b4a01cfa97f8cbebce89ddae3f |
| Publication page | 219945a61aea554707ac851c0fdbcaec3e7a00a5a8f9a4ae7d9836e6a9094a7b |
| Manifest | 40005248812a11971df06ac994f40addd1787e1661e7c4f712009a261c2cec47 |
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 | Db+H0yGl+gK8fn/WJsMkI0k8I8lsLk4/NpIbfX55wwkEj8V9DJWlQnjW7YHqNQk50asH7E85FCD67PSMDQIMBg== |
| 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
| 2026-09-15T19:20:12.385607Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002981observed 219945a61aea554707ac851c0fdbcaec...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:20:12.232446Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002981/manifest.jsonobserved 40005248812a11971df06ac994f40add...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:12.221099Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002981/publication.txtobserved b6c049582980bb9d37067519c49b3406...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 |
|---|