OT-2026-000002763
Publication integrity record
Negative-pressure element for a (negative-pressure) work surface
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-2026-000002763) never changes.
Identity and time
| Publication number | OT-2026-000002763 · never reused |
|---|---|
| Internal UUID | 01a0a67e-a0a3-7965-b521-79e3719ba7cd · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:11.651396Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002763 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9bf2d4c81ac93d15984ce29c2334e536b8375354c3212a8624b070825144676c |
|---|---|
| Markdown | 40a223bf2b0bbfebee1fd6f160d70892353726ff3b3ca39cc6437c0650467d8f |
| Publication page | f1bde061ebe89a88ff1ffd70db69657cb920ef1c08de3eb03b975d1a33e0f153 |
| Manifest | d348dc2c4d08eaa26b17dfad44f2117a3c642d072526a4da36bf361dc96d48d8 |
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 | h0l8RQBeRvdypv+AHTsjNj4Qv+7IR29f1+rgnL3aS16FJsjly+wd342KAdVod9nVr0ONlSqZBquhXXyKt6j/Ag== |
| 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
| 2026-09-15T19:30:07.431339Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002763observed f1bde061ebe89a88ff1ffd70db69657c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:07.400965Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002763/manifest.jsonobserved d348dc2c4d08eaa26b17dfad44f2117a...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:07.387283Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002763/publication.txtobserved 9bf2d4c81ac93d15984ce29c2334e536...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 |
|---|