OpenTechnical

OT-2026-000000240

Publication integrity record

Valve bodies having wear resistant inner cores

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-2026-000000240) never changes.

Identity and time

Publication numberOT-2026-000000240 · never reused
Internal UUID01a0a673-246d-7bfd-a71e-beb162b2e219 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:38.958035Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000240
StatusPUBLIC

Content hashes

Canonical textb26995b871519d9f34bc910d073d91b646f031f34f36de04e03638ba21e5201a
Markdown439cadbf9b73f8ee51309d2aa17a04ba022fa16ca65d1f8dd231f95274327374
PDF
Publication pagee9323e5ffecd7bb8139632af3a09ed1c035392c528fa485dfb4569b371613c70
Manifestfed5fe72b8a11967c613ab081f832012c5f202ebd59429abb5dd9ee50ae031ed

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
SignaturemSNbENzbnALDp7tw9FG0FgNiGaMfv3/y6xVODUJutznoE1p3zsCoo9JZLmMOg0MbEgUPk8AdauBixzHgy93pDA==
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

2026-09-15T20:50:33.266576ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000240
observed e9323e5ffecd7bb8139632af3a09ed1c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:33.237145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000240/manifest.json
observed fed5fe72b8a11967c613ab081f832012...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:33.098314ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000240/publication.txt
observed b26995b871519d9f34bc910d073d91b6...
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