OT-2026-000003272
Publication integrity record
Air tool with exhaust diverting valve
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-2026-000003272) never changes.
Identity and time
| Publication number | OT-2026-000003272 · never reused |
|---|---|
| Internal UUID | 01a0a6a7-9b03-7eb8-bbd0-e2a400476b27 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:59:57.187900Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003272 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2ec27ccb8861e86dfec56b5a5fd1554af0173aa3d072425b249ddbb92bc57fd7 |
|---|---|
| Markdown | 288db825b6a54f672c1e9f6285da35eaf732b05f60be046e411063a3efe99853 |
| Publication page | c655b0dfc895d317a74c2bb4a6ea44cd2c1651f7c92917d354ac026862e74b75 |
| Manifest | b556722dfb1992cff3101108e1acb0b9f2a28dbca7602bf2d414ce764fdc8db6 |
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 | W+NMvkCR2Mo7vRvSO94KDDz4/CqX/Ugam1v8QG7aVqM/LtnNtxv8dvYDXFlGEoatP4vVI9hvHtNL9e5RZ9xNAw== |
| 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
| 2026-10-13T08:41:39.685806Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272observed c655b0dfc895d317a74c2bb4a6ea44cd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T08:41:39.620649Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272/manifest.jsonobserved b556722dfb1992cff3101108e1acb0b9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T08:41:39.551240Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272/publication.mdobserved 288db825b6a54f672c1e9f6285da35ea...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T08:41:39.407810Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272/publication.txtobserved 2ec27ccb8861e86dfec56b5a5fd1554a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:02.632386Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272observed c655b0dfc895d317a74c2bb4a6ea44cd...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:02.198137Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272/manifest.jsonobserved b556722dfb1992cff3101108e1acb0b9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:02.165477Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003272/publication.txtobserved 2ec27ccb8861e86dfec56b5a5fd1554a...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 |
|---|