OT-2026-000002720
Publication integrity record
Fall protection systems and methods
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-2026-000002720) never changes.
Identity and time
| Publication number | OT-2026-000002720 · never reused |
|---|---|
| Internal UUID | 01a0a67e-5d3e-7877-89f7-49310bd23413 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:54.399224Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002720 |
| Status | PUBLIC |
Content hashes
| Canonical text | a29f3ce59a96f277f4617a153f17582dbb11b39eede63920b2d4264c04d2e2ce |
|---|---|
| Markdown | b7a119e5d68d2a7a766e0e1aa19eaef65d10a3a67ef9843dfcf202a5025f00dd |
| Publication page | 7f8bc9fd58312028b80dafcb6d8d98cc6ec7ee0ee79af08d8ae52aa81abb897e |
| Manifest | 20efac78a329a13d813c84bfdff45dbb31edd86fb8edac3f357c7a4b11e83223 |
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 | BC9iv3MBajCMNLVm0PQwwQRZBsPimJsGJMJyTH4zYRAaGr22O5x9+UulYhBzlHDayAYDPa6Bi1RxPgkgkuKNDQ== |
| 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
| 2026-09-15T19:30:12.574486Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002720observed 7f8bc9fd58312028b80dafcb6d8d98cc...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:12.409534Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002720/manifest.jsonobserved 20efac78a329a13d813c84bfdff45dbb...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:12.395362Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002720/publication.txtobserved a29f3ce59a96f277f4617a153f17582d...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 |
|---|