OpenTechnical

OT-2026-000000733

Publication integrity record

Non-permissive fire connection 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-2026-000000733) never changes.

Identity and time

Publication numberOT-2026-000000733 · never reused
Internal UUID01a0a673-c17f-7487-9b29-287790c9ed0a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:19.168351Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000733
StatusPUBLIC

Content hashes

Canonical textb9fa1e2a58240ff83d89b6255bd44b990a45e55f4ba4379773d353edc43e6468
Markdowne99fdb61024a11a1ae13fe9aea0ed0f1778db53a9a4eed278d8835db3bfce8d9
PDF
Publication page8a6edb564054be46fc37b142b5dbf3b65864ed0c83d80027783f48fb6bb2db48
Manifest2b1358eed5cf7080b8735b8a185d121e7f6f4966c5ba285c4f8428cb4396ca48

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
SignaturecCDfCXzJYFH307vZGxZzySaKQb+EgNDGpZK2ay68TJqDRoV9wHNH/obx1Rk/y+dCkbIf61o0rK3YL4VYv1s1AA==
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

2026-09-15T20:40:10.549677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000733
observed 8a6edb564054be46fc37b142b5dbf3b6...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:10.519812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000733/manifest.json
observed 2b1358eed5cf7080b8735b8a185d121e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:40:10.507338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000733/publication.txt
observed b9fa1e2a58240ff83d89b6255bd44b99...
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