OpenTechnical

OT-2026-000000479

Publication integrity record

Wrench assembly for water treatment system

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-2026-000000479) never changes.

Identity and time

Publication numberOT-2026-000000479 · never reused
Internal UUID01a0a673-69eb-7044-b730-2b3adb41c697 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:56.748088Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000479
StatusPUBLIC

Content hashes

Canonical text4ed8287607d4810b8e3864aae3529a5d3ae3bb44d78f27778c3d01718c4260fa
Markdown2e604e2ea7336aed23ca16a57dfe15fdb4fd5c08854fc92a273561f7ecd6259e
PDF
Publication page3f09af8ff7bcb7a001bd85cd6253ec51459f051cd47680796bafc842c09a705e
Manifestefc6b759e159dad187d18946b0f865a667e5be69a52a1d60cb9591c80f6c46f2

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
Signaturer0zhL0v1iRqjubgvsuBcBFARNgPB+uj8rqckQZ0Eyt6rNjVga2JGbxifPskwC49GvW6sQrwM384AGUCmK4m8Cw==
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

2026-09-15T20:50:04.751873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000479
observed 3f09af8ff7bcb7a001bd85cd6253ec51...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:04.599854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000479/manifest.json
observed efc6b759e159dad187d18946b0f865a6...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:04.585824ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000479/publication.txt
observed 4ed8287607d4810b8e3864aae3529a5d...
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