OpenTechnical

OT-2026-000042968

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, pulsed blow-off after 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-2026-000042968) never changes.

Identity and time

Publication numberOT-2026-000042968 · never reused
Internal UUID01a0ae7b-3277-7900-a4c6-1ac33a31d592 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:24.717423Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042968
StatusPUBLIC

Content hashes

Canonical text928d1c51c332a421cc28d155f1e16088ba0ca7206a3a727aebcbd7222909db89
Markdownef29c3ebba114dc3ff1cf1b1adf73c4913707f10859b6c6dbb36b08ad8212871
PDF
Publication pageb6877d12ddfe769bae5b6fef4f8d9a0151962d21013d25aabe0bccbfa71851a2
Manifest33e0310dfc94f72d04f1914900f5ec6f5477b8c06a2fd9291fb598d6bd25a668

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
SignatureZsE1JjaVng3X6UGB1iOmoKLZYaPS7afDZiGw5605mQ+XXS4axePNSaiFO2OxUJlgoEGCzBrai/V3KKzizDU0Dg==
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

2026-09-17T11:13:15.913546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042968
observed b6877d12ddfe769bae5b6fef4f8d9a01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:15.893548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042968/manifest.json
observed 33e0310dfc94f72d04f1914900f5ec6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:15.875423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042968/publication.md
observed ef29c3ebba114dc3ff1cf1b1adf73c49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:15.857871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042968/publication.txt
observed 928d1c51c332a421cc28d155f1e16088...
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.