OT-2026-000003454
Publication integrity record
Vacuum lifting device for handling sheet material
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-2026-000003454) never changes.
Identity and time
| Publication number | OT-2026-000003454 · never reused |
|---|---|
| Internal UUID | 01a0a6c2-bb1b-7018-8f1c-fefe7bf73048 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:29:34.876314Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003454 |
| Status | PUBLIC |
Content hashes
| Canonical text | 26ed03dc83874a5a3d5a5bf8b59477511cb42dd32bfb838b03a3731ff29850c0 |
|---|---|
| Markdown | 873e273cd4c2af264323c1fbd12fbd47b4842f498df854b55010bc7abb532140 |
| Publication page | 8b75ee1b8276dbc684035c3ae09c67ca95fcf2a856a5c551b0766035ed52d0b6 |
| Manifest | 4465e4df9bc07d126e085acc2902b669a4fb9441f262584d839b2423584644dd |
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 | P9GJrpaV5XeeSiPjr+5Qt5JPmI5Vyur9RWYRcRncvrWDg4p8qMIaY9rsIjtpu29PjhJKDEFKWjYYMea+mwMxCA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:36:25Z batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof root 40fdb380c9f41bd58bb35c455dde2c7d... |
|---|
Independent retrieval
| 2026-10-22T00:41:34.031825Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454observed 8b75ee1b8276dbc684035c3ae09c67ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-22T00:41:33.914841Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454/manifest.jsonobserved 4465e4df9bc07d126e085acc2902b669...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:33.794916Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454/publication.mdobserved 873e273cd4c2af264323c1fbd12fbd47...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:33.641353Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454/publication.txtobserved 26ed03dc83874a5a3d5a5bf8b5947751...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:03.618441Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454observed 8b75ee1b8276dbc684035c3ae09c67ca...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:03.461831Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454/manifest.jsonobserved 4465e4df9bc07d126e085acc2902b669...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:30:03.442921Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003454/publication.txtobserved 26ed03dc83874a5a3d5a5bf8b5947751...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 |
|---|