OpenTechnical

OT-2026-000002295

Publication integrity record

Pipe dismantling device

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-2026-000002295) never changes.

Identity and time

Publication numberOT-2026-000002295 · never reused
Internal UUID01a0a67b-c212-7fe0-8fc8-94c312af22b6 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:12:03.603066Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002295
StatusPUBLIC

Content hashes

Canonical text82185372e87112f4de743099f2994f67ad7ec1ad8aa7c5f1099b7e67cfb04818
Markdown4fd979e8a8f207fd1b8cb84e8965f9212ea6e5bb1cd4874a3eba6b97713b0205
PDF
Publication pageb2651ba66233d6fc524101a37b33d68b26163fd17b16c8b9e3c436383228f3c9
Manifesteba7c9d7fe6824c7509ee9da0594b0c61a6c6b9b7c3bc4e2cccb647c7b9efde8

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
SignaturelVq4tgMZSzD8Hra8+ZJJeanZDDFctcy/WpgvLfOrCxMQtuWk1gd2kxdcoZYhCvJCgDicfBlePUVnqiNbwHM0DQ==
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

2026-09-15T19:40:31.042157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002295
observed b2651ba66233d6fc524101a37b33d68b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:31.014170ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002295/manifest.json
observed eba7c9d7fe6824c7509ee9da0594b0c6...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:31.002464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002295/publication.txt
observed 82185372e87112f4de743099f2994f67...
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