OpenTechnical

OT-2026-000001583

Publication integrity record

Fire apparatus level indication system

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-2026-000001583) never changes.

Identity and time

Publication numberOT-2026-000001583 · never reused
Internal UUID01a0a676-f6c0-7ce7-b7a0-002692248dc6 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:06:49.409470Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001583
StatusPUBLIC

Content hashes

Canonical textc1c01fc65bfa87de8472e8fd8e17650308560ceb392e2ebcea3b6fc52f92a5b0
Markdowne6b957e03c3b80bf4a995de761297a13665362e9a6d519b0d1f19d8fe37aadda
PDF
Publication page5725cb49c861444b07c29627b55482d7494b7464f193f950b436bc2f551338d8
Manifest1b7f01c4f84265d01468f5f92216a4a322c697c22e42082157ea0de863833c06

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
SignatureW+ZnaFxiolFB0hUX82GTiE63a2qi16K9SUfWkZOA3qcdE3dPb2o++Xpc3tjKZWZX3qfsXfTW3doWANBkgnLpCA==
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

2026-10-27T12:41:31.526490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583
observed 5725cb49c861444b07c29627b55482d7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T12:41:31.404708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583/manifest.json
observed 1b7f01c4f84265d01468f5f92216a4a3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T12:41:31.271854ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583/publication.md
observed e6b957e03c3b80bf4a995de761297a13...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-27T12:41:31.011785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583/publication.txt
observed c1c01fc65bfa87de8472e8fd8e176503...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:00:26.994970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583
observed 5725cb49c861444b07c29627b55482d7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:26.962636ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583/manifest.json
observed 1b7f01c4f84265d01468f5f92216a4a3...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:26.947776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001583/publication.txt
observed c1c01fc65bfa87de8472e8fd8e176503...
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