OpenTechnical

OT-2026-000002137

Publication integrity record

High pressure liquid-jet seal assembly carriage

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-2026-000002137) never changes.

Identity and time

Publication numberOT-2026-000002137 · never reused
Internal UUID01a0a67a-d1ff-75d0-882e-745d315ee9ee · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:11:02.143436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002137
StatusPUBLIC

Content hashes

Canonical textaf9f482e7669c8be555236c9734529da350aad8663a8f532a013ec93508f8c03
Markdown00e7c2c55b63acf757b54d6948a5301067dceb39f0fbe44680afc0803eba8c96
PDF
Publication page873ef43008baaf26b6847342ac143a3cf931b3bf85ffcf1858a29d6b239517e5
Manifest520b856d204cec4e40e0df5a13e7407e763a8fd5d2a9f8af67c2f9f1b0891c44

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
SignatureUOu6gYmv3X14r2jUA7UOozs60hQzvsidGMuI8F19TkI70DEVXrAO6gUdLp70StbVyyE0p+C427HlOlp7nwg0CA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:50:21.181573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002137
observed 873ef43008baaf26b6847342ac143a3c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:21.152059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002137/manifest.json
observed 520b856d204cec4e40e0df5a13e7407e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:50:21.141025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002137/publication.txt
observed af9f482e7669c8be555236c9734529da...
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