OpenTechnical

OT-2026-000071819

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, pulsed blow-off before set-down

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-2026-000071819) never changes.

Identity and time

Publication numberOT-2026-000071819 · never reused
Internal UUID01a0ae92-1e92-7d57-995d-d13ab246a7eb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071819
StatusPUBLIC

Content hashes

Canonical textf7226cb56a01a24c4b17656203f3dd00555b0f4d3f6507d42b4269d9180bb304
Markdownf966248038e9fec2a700131d789b2b874ed8d4b4f723a10b067e18b54d4856e8
PDF
Publication paged0bf84e335afdc43bf55da245903dd9f487bc8098fd78f9b7f18c9d578247236
Manifest854d8932eb5944add2a9717a9f3703fc72f0d81d8bff9aea14e3ad5b69d5ca50

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
SignaturetjTcnly1SpUDpqvxOny42lxZH1YbBA3ipjlxuzN0y7L6iPpDVmS0lNxfFzoYnJjgS4a3df47RdvaB133VmqODw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:23:59.559795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071819
observed d0bf84e335afdc43bf55da245903dd9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.543266ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071819/manifest.json
observed 854d8932eb5944add2a9717a9f3703fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.527133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071819/publication.md
observed f966248038e9fec2a700131d789b2b87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:59.509361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071819/publication.txt
observed f7226cb56a01a24c4b17656203f3dd00...
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.