OT-2026-000003068
Publication integrity record
Quick change pneumatic hammer
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-2026-000003068) never changes.
Identity and time
| Publication number | OT-2026-000003068 · never reused |
|---|---|
| Internal UUID | 01a0a680-65ad-76c7-9bc3-5db270bfe5a8 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:17:07.629378Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003068 |
| Status | PUBLIC |
Content hashes
| Canonical text | 97a4e7cc5d54b46a6787be47b03c2b0ed11507e2a23db55b629eeaf73d2f75bb |
|---|---|
| Markdown | e0c4eeeb791032493275276cabae658b8b83ab6a0e044b7c9c04dabbd7e3eb0e |
| Publication page | e6b03334d27ca3cca2a24588ea4f9ee3c41fdf274a624de384d4bbe51a352d0e |
| Manifest | 9498b6a603c5df7f09b9ab90fe3dbf92b8f09c3ad631b28fc1d5a4508f77123c |
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 | qTA2X6eXUdKR6ySHOZseSlwJJmT4NHhZxWL5iyN/jsLgeVQhxJq7QfUZLMuQ1Drstd+6JVZ4xm7xeACQ6vcmAA== |
| 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
| 2026-09-15T19:20:03.129330Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003068observed e6b03334d27ca3cca2a24588ea4f9ee3...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:20:02.982375Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003068/manifest.jsonobserved 9498b6a603c5df7f09b9ab90fe3dbf92...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:02.969820Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003068/publication.txtobserved 97a4e7cc5d54b46a6787be47b03c2b0e...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 |
|---|