OpenTechnical

OT-2026-000000859

Publication integrity record

Self-adhesive strain gauge assembly including flexible printed circuit board

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-2026-000000859) never changes.

Identity and time

Publication numberOT-2026-000000859 · never reused
Internal UUID01a0a673-ed43-7036-bb4f-31d7fd5e831f · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:30.371948Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000859
StatusPUBLIC

Content hashes

Canonical textd723be49836958241ebae6fb2d675d863fc94ff3767fc5a27ca61c8c3559e3c5
Markdown7913af9b812ba0649670aee1f2e29d613745c3192b068c3fa0e58f05c2a52929
PDF
Publication page78cb53579455a7d9ab97a5d3233441a35da8e0abe72fcc2ba5c6f3516e55b48b
Manifest74175340e9690b32d911293a428a421e7e192c1464f9cfbf0e7db6fefeffda74

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
SignatureEJ8xJJq8AKlAQ298P9N/W5qCHZkmzF3Llbvpf9aMHH+OwjFAzyO5auTamefaeXzMAdJruDl57fVoDS0d3K0HCQ==
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

2026-10-19T04:41:48.329893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859
observed 78cb53579455a7d9ab97a5d3233441a3...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:48.259729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859/manifest.json
observed 74175340e9690b32d911293a428a421e...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:48.191747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859/publication.md
observed 7913af9b812ba0649670aee1f2e29d61...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-19T04:41:48.074424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859/publication.txt
observed d723be49836958241ebae6fb2d675d86...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.860710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859
observed 78cb53579455a7d9ab97a5d3233441a3...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.707708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859/manifest.json
observed 74175340e9690b32d911293a428a421e...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:26.693775ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000859/publication.txt
observed d723be49836958241ebae6fb2d675d86...
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