OpenTechnical

OT-2026-000025170

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off before set-down, on a tool changer

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-2026-000025170) never changes.

Identity and time

Publication numberOT-2026-000025170 · never reused
Internal UUID01a0ae71-5fa5-7dec-b9c5-39ca61ed8504 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025170
StatusPUBLIC

Content hashes

Canonical text77734e49b9959014ae77fc086e120e20224c5b8819c4db694c1bcfc8cf3878b1
Markdowna9ef341f1655627badc08996cf53df68881cfeff39d06a70eedbdeba3a2e9041
PDF
Publication page95cd68502204212871051c9e1a4a0956b3387f9f9882296027e793b3a98c3bde
Manifestdece441b85f0655c6f08ec1c494da62d683091d176a86849fb7b1886b7e1219a

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
SignatureAvzNem3reTZwppUeB0O+8tHZHXDB2rQaDSt4Tg6jToVl0Qe/LQYQL/DwnI7AfAlchNekoSG/iLl/xbmOC4eRCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:47:03.763107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025170
observed 95cd68502204212871051c9e1a4a0956...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:03.744172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025170/manifest.json
observed dece441b85f0655c6f08ec1c494da62d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:03.727697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025170/publication.md
observed a9ef341f1655627badc08996cf53df68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:03.711221ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025170/publication.txt
observed 77734e49b9959014ae77fc086e120e20...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.