OpenTechnical

OT-2026-000001509

Publication integrity record

A device for fixing an enclosure to a wall

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-2026-000001509) never changes.

Identity and time

Publication numberOT-2026-000001509 · never reused
Internal UUID01a0a676-80b9-7198-9291-feb6c9b47491 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:06:19.193847Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001509
StatusPUBLIC

Content hashes

Canonical text5617f57f815bd6f1721856d6bd4e322a8470dcba5615f9e388379a627b79e605
Markdown70c3e1f60b08589fb55644d992487cd05a49dedaf00bdee5e9ccba43d392a07c
PDF
Publication page06f8874dada9229ddca5aef2aacf551d2cb7745d8dc03ce17e51045bdb378b02
Manifestd9dd1ae4aa20c8d8c58fc2220561b0ca822b181294e2d24abc2e9b26497a5e03

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
SignaturegaL6XRf1K3Pa1oJKyKMWfch4hyoyPZnJ8yvW4imEdX+Zk2U5gJZjo9A73Is1Tw3OuhY1BOWSPxuH4DPumAb1Ag==
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

2026-10-28T12:41:14.639724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509
observed 06f8874dada9229ddca5aef2aacf551d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T12:41:14.581889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/manifest.json
observed d9dd1ae4aa20c8d8c58fc2220561b0ca...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T12:41:14.491597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/publication.md
observed 70c3e1f60b08589fb55644d992487cd0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-28T12:41:14.374739ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/publication.txt
observed 5617f57f815bd6f1721856d6bd4e322a...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T08:41:06.838034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509
observed 06f8874dada9229ddca5aef2aacf551d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T08:41:06.765403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/manifest.json
observed d9dd1ae4aa20c8d8c58fc2220561b0ca...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T08:41:06.691489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/publication.md
observed 70c3e1f60b08589fb55644d992487cd0...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T08:41:06.466749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001509/publication.txt
observed 5617f57f815bd6f1721856d6bd4e322a...
fetched by grabo-systems from 34.44.131.203, 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