OpenTechnical

OT-2026-000001669

Publication integrity record

Tape applicator head

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-2026-000001669) never changes.

Identity and time

Publication numberOT-2026-000001669 · never reused
Internal UUID01a0a677-98b1-76e5-aab2-d9538f6bc975 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:30.865798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001669
StatusPUBLIC

Content hashes

Canonical texta6f3ab84d49eaf29e98d612091b493fa1f1385237ac5963377566b9e9c7bfeb0
Markdownbd2adf2286687f675ecf7627036b33289c9cdfbdbfd01d0b126f2910d86d5eb2
PDF
Publication page033ac65fe8f67d632ea190cb7fecfb374a9da2e85b03980226955f46fd5289d4
Manifestac1373bc905f5b13274131f8ef0e004f4ea2d1e0f00d21ca73dcb3dfe59755ed

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
SignaturerfCh+N6etNLqqKx4nlulXbj5phYroMl3KzK5ouwC72gIXBvhr3qP2T0sDDw/Pn/GiawB8CtkkiNGwJ+paYBJBw==
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

2026-09-16T20:41:21.815283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669
observed 033ac65fe8f67d632ea190cb7fecfb37...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:21.622899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669/manifest.json
observed ac1373bc905f5b13274131f8ef0e004f...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:21.368660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669/publication.md
observed bd2adf2286687f675ecf7627036b3328...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T20:41:21.188536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669/publication.txt
observed a6f3ab84d49eaf29e98d612091b493fa...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.965222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669
observed 033ac65fe8f67d632ea190cb7fecfb37...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.918200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669/manifest.json
observed ac1373bc905f5b13274131f8ef0e004f...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.903410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001669/publication.txt
observed a6f3ab84d49eaf29e98d612091b493fa...
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