OpenTechnical

OT-2026-000003487

Publication integrity record

Rotary and sealed connection for pressurized fluids

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-2026-000003487) never changes.

Identity and time

Publication numberOT-2026-000003487 · never reused
Internal UUID01a0a6c6-ad29-7703-b8e1-c8b1f92ea100 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T20:33:53.449620Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003487
StatusPUBLIC

Content hashes

Canonical textf3e570d5ad6e51b91a6792bd5b17107454d36af2cd60e8e7d2c18a53d75a3644
Markdownd894547f83bc64a0b7e94f652b9b8289970a5c5e3f5ddefb4283afa24dc01eef
PDF
Publication pagefdac8bdc7165d21f35ee259da34fb024e38951ca30c461d8a1a3a22d8c5ccf85
Manifest2858dda6036dfe3b5cb5695be591ee150a8602db5256d2431ca7ecee9fe5ef69

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
Signature+EjD//iayYg2bCskia6WE3OTNP5+jZpLGMuTGUE1rbdKBJaAtfNxNoAkZ9TR02gfEax43+QI0w5QpURaYPqCDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:36:25Z
batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof
root 40fdb380c9f41bd58bb35c455dde2c7d...

Independent retrieval

2026-09-15T20:40:03.834465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003487
observed fdac8bdc7165d21f35ee259da34fb024...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:03.803002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003487/manifest.json
observed 2858dda6036dfe3b5cb5695be591ee15...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:03.783665ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003487/publication.txt
observed f3e570d5ad6e51b91a6792bd5b171074...
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