OpenTechnical

OT-2026-000001193

Publication integrity record

Integrated metal roof attachment

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-2026-000001193) never changes.

Identity and time

Publication numberOT-2026-000001193 · never reused
Internal UUID01a0a674-6c66-7cd5-9deb-4d147f50831a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:04:02.918809Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001193
StatusPUBLIC

Content hashes

Canonical text1a0512bcff2c76aad24461dbf783a8af2498c7af0b3e5afc0552a00a4c721c3b
Markdown954ab9f5b4ac608ff25159979111cc12243e09aac1a8bdb58586f8807aaa2cb0
PDF
Publication pagedad25bd65ec09a5883d91b38fe5af1be1ea53676960b6a780e227785f262c1aa
Manifestb3079c2beb394e26d15aded45748522d1575626f11fbd1d954c2eec5fd3fefec

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
SignatureKxc5eUFYOGSXZmF9t+xSQ5pyduYfoS9+8p+CvWUm/jMRLSOzvjDRzdp19eZG54XhYx7oJQILjQciU7aNA7VIBQ==
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

2026-09-15T20:20:13.315119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001193
observed dad25bd65ec09a5883d91b38fe5af1be...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:13.160959ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001193/manifest.json
observed b3079c2beb394e26d15aded45748522d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:20:13.147631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001193/publication.txt
observed 1a0512bcff2c76aad24461dbf783a8af...
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