OpenTechnical

OT-2026-000001065

Publication integrity record

Vacuum lifter for lifting objects located in confined spaces below grade

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-2026-000001065) never changes.

Identity and time

Publication numberOT-2026-000001065 · never reused
Internal UUID01a0a674-36e0-7a21-adea-5ae865b46160 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:49.216730Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001065
StatusPUBLIC

Content hashes

Canonical text5cf52fad6fe68f05f13879651fd7336a17e3823b7536ec316438cc29b3c70260
Markdownfb726e62e24560fb15a3273d94f997514b400dba515d29c43333f2f1ac7f5963
PDF
Publication page2223be8816f56d4f5476a4cc32b197945344da367ee023ace3bcba2a3819d33b
Manifest7d24115bc2f35e5eaadec41dc0b2f5843423cbba3bd1e493279d47399eedfd34

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
Signaturex5sLWPhLWsSiCjjr3ebqtUScp6vKgQ0dih2lMilXGv3/edg7XNRlt/Hc9ImJ8YRIR3SD7lrltefz8V4qB4OWDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T20:20:28.110297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001065
observed 2223be8816f56d4f5476a4cc32b19794...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:27.920809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001065/manifest.json
observed 7d24115bc2f35e5eaadec41dc0b2f584...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:27.908220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001065/publication.txt
observed 5cf52fad6fe68f05f13879651fd7336a...
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 archivePending 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-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent