OpenTechnical

OT-2026-000072615

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, supply line pressure sensor, pulsed 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-2026-000072615) never changes.

Identity and time

Publication numberOT-2026-000072615 · never reused
Internal UUID01a0ae92-89d9-79f2-9c5e-82899662a3f5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072615
StatusPUBLIC

Content hashes

Canonical textff1b56aff2e9be4c16eaf49affe9aa3ff16e0f4acaea5eaad3e342c122c8cca5
Markdown13587e52a0ae979e6338c85199661c263702a571b5b6a6530a578798fc6d4323
PDF
Publication pageca61b5efc02551f5e2af989032e7aa0d74488ed018b21766c7ea487b5e324b0c
Manifestb20ddd95dde4e21f007c4efaa9959df30cc23091d15d1f935bcc1ea2b55740ae

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
Signature9ybYiTTFBeTzgGJU+u295t2bBC6/vhSrDUY1G9yz7kdBchh1+kA5aq71mzloTl8IJnJ5EelNRs8ppA6AaWXQCg==
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

2026-09-17T10:22:28.066331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072615
observed ca61b5efc02551f5e2af989032e7aa0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:28.048270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072615/manifest.json
observed b20ddd95dde4e21f007c4efaa9959df3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:28.032127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072615/publication.md
observed 13587e52a0ae979e6338c85199661c26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:28.015470ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072615/publication.txt
observed ff1b56aff2e9be4c16eaf49affe9aa3f...
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.