OpenTechnical

OT-2026-000002734

Publication integrity record

Apparatus and method for maintaining a gas turbine engine having at least one port

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-2026-000002734) never changes.

Identity and time

Publication numberOT-2026-000002734 · never reused
Internal UUID01a0a67e-71ad-7bad-8b18-1d29d001c815 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:14:59.630015Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002734
StatusPUBLIC

Content hashes

Canonical text4e826420331a916b14d293fd638af026d63dd5b907a3cef9989861f0a6bb8547
Markdownde5ca9df503a3bec84395c8b9b9bdf9ed3bbd1da8f71ad7debdd93580a1e3333
PDF
Publication page1e4d937e18519c3c3ebee8573555e31f11bdbc14e88c976964a2c554bf3adb4b
Manifest5d64d38b1bf4a55db50e4a87836e085846ee19e1c5be70f18d7b8d39c8e076e4

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
Signature3MtWPwbgH6p+5Gah7Y/34XAJ1ZficcOT35vgtiraBxochzBSA3fWvxs0UyyLWTLKFS4SawmD9po8UJHNMW9FCQ==
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

2026-09-15T19:30:10.886238ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002734
observed 1e4d937e18519c3c3ebee8573555e31f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:10.854952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002734/manifest.json
observed 5d64d38b1bf4a55db50e4a87836e0858...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:10.841017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002734/publication.txt
observed 4e826420331a916b14d293fd638af026...
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