OpenTechnical

OT-2026-000000144

Publication integrity record

Measuring tool attachment cover

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-2026-000000144) never changes.

Identity and time

Publication numberOT-2026-000000144 · never reused
Internal UUID01a0a673-0a67-7c43-9704-3461ce034a7e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:32.295863Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000144
StatusPUBLIC

Content hashes

Canonical textd163adf6f58f3999a4c00a9e2ba59ccd06614d8bdca84051b1c4b09fc0716f07
Markdownded4c5f7aa0ba20ae807e34332adcb199291ea233eb45fab8c6efe6787ad7db4
PDF
Publication page998fe21996b14b99da4b277892c639cdff2e53fd1f3cf598d47f97b70627a91f
Manifest7fe73a49e1d12a1f90e9db018fa05f42f8a830f12e3d5d5b9d34bd3ee43d93ce

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
Signaturemnv/2PUCsOrRZHxmCZnYDNqIeAoYU5778yiocn3cdK/BxkiEsMm4jLicxJS1jvYmvYfhDd3sAiuvaT/7uGOWDA==
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

2026-09-15T21:00:07.348483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000144
observed 998fe21996b14b99da4b277892c639cd...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:07.318420ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000144/manifest.json
observed 7fe73a49e1d12a1f90e9db018fa05f42...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T21:00:07.180713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000144/publication.txt
observed d163adf6f58f3999a4c00a9e2ba59ccd...
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