OpenTechnical

OT-2026-000003256

Publication integrity record

Pressure activated diaphragm bonder

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-2026-000003256) never changes.

Identity and time

Publication numberOT-2026-000003256 · never reused
Internal UUID01a0a6a5-1641-7e54-804a-57d3d303370d · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:57:12.129784Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003256
StatusPUBLIC

Content hashes

Canonical text133e83265429e099e349f9e60180117932c924adada16c411bea5e4fa97ae63a
Markdown35371d15e4a30747ec77f9471fe9def2cf2e08d2b097d2825c8070c517643bc5
PDF
Publication page7d8774c231a1967f90bdb7a28430090aaf57adb39ad121f13e00af1269889164
Manifestc7eb41ba382241a9f468729a24ec2a3caf433ef894f5da850c43e298c38d004b

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
Signaturet5VDwAea8vROuJJSF46n+X6Z2fkANqjGm6K1CpC0i/fgHzXlMMrHPDUP31Skr/t3FLY3QBt8VS46bmSQZ3klAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-16T04:23:05.721089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256
observed 7d8774c231a1967f90bdb7a28430090a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:05.707023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256/manifest.json
observed c7eb41ba382241a9f468729a24ec2a3c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:05.691356ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256/publication.md
observed 35371d15e4a30747ec77f9471fe9def2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:05.652613ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256/publication.txt
observed 133e83265429e099e349f9e601801179...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T20:42:39.258196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256
observed 7d8774c231a1967f90bdb7a28430090a...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:38.805877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256/manifest.json
observed c7eb41ba382241a9f468729a24ec2a3c...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:42:38.506163ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256/publication.txt
observed 133e83265429e099e349f9e601801179...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:05.167290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003256
observed 7d8774c231a1967f90bdb7a28430090a...
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