OT-2026-000000749
Publication integrity record
Cable-driven telescopic boom
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-2026-000000749) never changes.
Identity and time
| Publication number | OT-2026-000000749 · never reused |
|---|---|
| Internal UUID | 01a0a673-c735-7ae6-81ee-85ee9bed234a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:20.630102Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000749 |
| Status | PUBLIC |
Content hashes
| Canonical text | 35baa8e1088b8d8e6c3b2ea9e5b0233cc435a9c90dd5f88e96c9317b059c337e |
|---|---|
| Markdown | cac8ba31af406cccecc5173dba34c3e7ebf5a7bb6b5ad59fc5e16a66bf755203 |
| Publication page | f64a052b74eef1a552f37720814e1b3577bca045a504df60737a15aa42a23f69 |
| Manifest | 2abe8fc7cec8cac4b75f5462c64aba1c372cde510f7e23d6feaf5642d0eb40dd |
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 | tFy1kffsU8n2+hohXsjM0Ez/yitWsuF0CWIUHm9zblKWMB8tVx47LcAikTAXPx4v8uzKwAAyui+VqKYgbHxmAQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-10-29T00:41:56.105322Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749observed f64a052b74eef1a552f37720814e1b35...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T00:41:56.038674Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749/manifest.jsonobserved 2abe8fc7cec8cac4b75f5462c64aba1c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:55.970018Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749/publication.mdobserved cac8ba31af406cccecc5173dba34c3e7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T00:41:55.597621Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749/publication.txtobserved 35baa8e1088b8d8e6c3b2ea9e5b0233c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:08.752162Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749observed f64a052b74eef1a552f37720814e1b35...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:08.720088Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749/manifest.jsonobserved 2abe8fc7cec8cac4b75f5462c64aba1c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:08.582434Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000749/publication.txtobserved 35baa8e1088b8d8e6c3b2ea9e5b0233c...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 |
|---|