OpenTechnical

OT-2026-000000277

Publication integrity record

Split-type piezoelectric sensor

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-2026-000000277) never changes.

Identity and time

Publication numberOT-2026-000000277 · never reused
Internal UUID01a0a673-2e8f-7b14-97d9-f64e03f44973 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:41.552122Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000277
StatusPUBLIC

Content hashes

Canonical text4a665e970e7563b54cbde116c18847348acfbe2eeb7feac945325de349a6403d
Markdown2c18212274f15ad245d02cdd6c969e1a26d7c53c898f2fe21b5b6126f7aa23ae
PDF
Publication pagea50e4336d47c4bd1ddc5e68e35a618cfacc6bdbb2a5a5acf28e86b654b215dac
Manifest6f869038f9271d52ff901e2be3ab07f0d95a7f67a287bdf3672d1f0c9241bd7b

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
Signaturejp0754bfEj7JoAGDfNc7PICYiwOqkyCy38xvlr3bXWwMelqch+io7yjwIjN0x3IS8ebuan26/SOYo0CAcG54CQ==
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

2026-09-17T04:23:09.580513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277
observed a50e4336d47c4bd1ddc5e68e35a618cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.564332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277/manifest.json
observed 6f869038f9271d52ff901e2be3ab07f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.549474ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277/publication.md
observed 2c18212274f15ad245d02cdd6c969e1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T04:23:09.509368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277/publication.txt
observed 4a665e970e7563b54cbde116c1884734...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T20:50:29.034957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277
observed a50e4336d47c4bd1ddc5e68e35a618cf...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:29.001336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277/manifest.json
observed 6f869038f9271d52ff901e2be3ab07f0...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:28.987440ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000277/publication.txt
observed 4a665e970e7563b54cbde116c1884734...
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