OpenTechnical

OT-2026-000002984

Publication integrity record

Device for removing abrasion wear-resistant steel plates

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-2026-000002984) never changes.

Identity and time

Publication numberOT-2026-000002984 · never reused
Internal UUID01a0a67f-e1a6-7e6b-b774-06a604b418ec · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:16:33.830658Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002984
StatusPUBLIC

Content hashes

Canonical textf051e1b7ca26130807cff42d7a09f93034fe2646ac505c4961124ca7fb336445
Markdown2b4d8bee67550a19e8a27cc65d9d789c25f1d9f8e6d9e1b7377ee7072c5d25e9
PDF
Publication page0fafb888b4a4d565adddfd66cd06aa1b3f0ee4f901b9feb5b6981b949faeec6f
Manifest4d4be370dfb16f4ba74787a74132267e2de3b540f4eb55ee6d264c32f3caaf49

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
Signature32cN74UDNjf/SEfIg9PjGNS+HePqJovKGCZFKt16MGLZa21KClv/hVbBTLToe37KwevsUeYaOQeR3GEwK+MoDQ==
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

2026-09-15T19:20:11.981477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002984
observed 0fafb888b4a4d565adddfd66cd06aa1b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:11.954862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002984/manifest.json
observed 4d4be370dfb16f4ba74787a74132267e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:11.943056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002984/publication.txt
observed f051e1b7ca26130807cff42d7a09f930...
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