OpenTechnical

OT-2026-000073992

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000073992) never changes.

Identity and time

Publication numberOT-2026-000073992 · never reused
Internal UUID01a0ae93-2b8f-7fef-ba36-a5e986929c2d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073992
StatusPUBLIC

Content hashes

Canonical text116ea338702dba96746555514f2b0bf2727741acb25808403f9b1e40bfb8f8eb
Markdown9df8a3b43c3a06832388afd78722adec1ff29a77c35abaa8355d9371092ac49f
PDF
Publication page34ecf660fd83fc57ca3d2323d02058b18ecb8c18e05d1bf0697a7c6a3db5321d
Manifestfdb336b2cf896d4cdffad77d2788e79a156bd4812db7378683685a00e1281f11

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
Signature+t3ARnzH5pvVfgkEz3SVrqk4ApiEkjLFGDM8MM0BMBHdq/Q/jU5EVcUpevs3+y/Raq5q7oxGqfI7BEjfLF+uDg==
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

2026-09-17T10:20:17.318487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073992
observed 34ecf660fd83fc57ca3d2323d02058b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.300394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073992/manifest.json
observed fdb336b2cf896d4cdffad77d2788e79a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.280829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073992/publication.md
observed 9df8a3b43c3a06832388afd78722adec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:17.263357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073992/publication.txt
observed 116ea338702dba96746555514f2b0bf2...
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.