OT-2026-000003225
Publication integrity record
Portable leveling vacuum tool
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-2026-000003225) never changes.
Identity and time
| Publication number | OT-2026-000003225 · never reused |
|---|---|
| Internal UUID | 01a0a6a0-76a0-702a-a955-8dcd97b5c163 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:52:09.121326Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003225 |
| Status | PUBLIC |
Content hashes
| Canonical text | e1e2d300c81bd4d03a68e5d4775c2ca68920accbcc9548a164a18bedfd513cef |
|---|---|
| Markdown | f129f6901b4a8826141b0f6d87a0f7b7202011c68026ed88d43126b1b55ad128 |
| Publication page | 75b213a60c7c79ec0b0793aec51c207a87e142fe1fbfe7cc18dbbe04dcd09c1e |
| Manifest | 2c3e63fd83ae527b2a4c3756ade9663e4a0f12c2493a0ad00ae8c0b0f28de1ea |
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 | GQZq9b6g/bstM8PJaBOzn7dM5I/Ccd6m0VYCxPI8Z584cXO+S+eyODmiUyndRj2/p8odUJXMjuuMMWG3p5JZCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-23T04:41:08.473670Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225observed 75b213a60c7c79ec0b0793aec51c207a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-23T04:41:08.419587Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/manifest.jsonobserved 2c3e63fd83ae527b2a4c3756ade9663e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:08.369898Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/publication.mdobserved f129f6901b4a8826141b0f6d87a0f7b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T04:41:08.203106Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/publication.txtobserved e1e2d300c81bd4d03a68e5d4775c2ca6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:16.866137Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225observed 75b213a60c7c79ec0b0793aec51c207a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:16.694143Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/manifest.jsonobserved 2c3e63fd83ae527b2a4c3756ade9663e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:16.460400Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/publication.mdobserved f129f6901b4a8826141b0f6d87a0f7b7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:16.136431Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003225/publication.txtobserved e1e2d300c81bd4d03a68e5d4775c2ca6...fetched by grabo-systems from 34.44.131.203, 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 |
|---|