OT-2026-000002531
Publication integrity record
Workpiece Tools and Techniques
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-2026-000002531) never changes.
Identity and time
| Publication number | OT-2026-000002531 · never reused |
|---|---|
| Internal UUID | 01a0a67d-3c35-71ed-b143-b5f894a15f7b · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:13:40.406017Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002531 |
| Status | PUBLIC |
Content hashes
| Canonical text | f2cca5e2ba798bddae74949180fc6eb654534cb0f415bd1ba9716757386594bf |
|---|---|
| Markdown | febe581574fbe0fc7cd0f5dc388809f5fe4387280952402cf8c16de00199e1b0 |
| Publication page | a3b28d54e24a7c87afebee96e4f4f2766949cb89f9d4bc49631d14a11ca1367f |
| Manifest | 1e532016604cba0f48fdabe16f21971e5f7c7993bdc934de9d6ff9da7145a9e5 |
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 | PJm/4otY1/cg6W2WqRPZUmN7wN0hRDsj/vCzEeEXxgSJEZa3aiGD6MU6Ib0oU/nxvxhdhGdAgpEzn27yCP09DA== |
| 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
| 2026-10-08T12:41:19.308792Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531observed a3b28d54e24a7c87afebee96e4f4f276...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-08T12:41:19.226976Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/manifest.jsonobserved 1e532016604cba0f48fdabe16f21971e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T12:41:19.137769Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/publication.mdobserved febe581574fbe0fc7cd0f5dc388809f5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-08T12:41:18.971143Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/publication.txtobserved f2cca5e2ba798bddae74949180fc6eb6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:43:07.361740Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531observed a3b28d54e24a7c87afebee96e4f4f276...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:43:07.168020Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/manifest.jsonobserved 1e532016604cba0f48fdabe16f21971e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:43:06.996821Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/publication.mdobserved febe581574fbe0fc7cd0f5dc388809f5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T12:43:06.635395Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002531/publication.txtobserved f2cca5e2ba798bddae74949180fc6eb6...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 |
|---|