OpenTechnical

OT-2026-000031150

Publication integrity record

Foam pad 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-2026-000031150) never changes.

Identity and time

Publication numberOT-2026-000031150 · never reused
Internal UUID01a0ae74-87ab-7572-8113-ee4882334b58 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031150
StatusPUBLIC

Content hashes

Canonical text92393f7192e669e85a5644a3ecb506d63bf04c8423a9b7aebb1734cc5d784135
Markdowneda99e774c16105dcdd436644d50b6ebb816aa26e630bb1035e13e952aa201dd
PDF
Publication page8549bfec6dbd21c1471aae895a7be720c37abeec372f4df4ead0099fbf6ab716
Manifeste684934bf742b7c3852ab82068ebefdd9ff68cc83cd88288598dcf704ed2fdf3

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
SignaturehLXrjkyr+aY+ZCs9QIFcUGGGXs2qICub19DsGeLmdD4ObgeXji7TTo+TqyVFFgD+t9nvdeN3pw+T34nF4pedDA==
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

2026-09-17T11:35:41.376007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031150
observed 8549bfec6dbd21c1471aae895a7be720...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:41.288015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031150/manifest.json
observed e684934bf742b7c3852ab82068ebefdd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:41.200676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031150/publication.md
observed eda99e774c16105dcdd436644d50b6eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:35:35.666893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031150/publication.txt
observed 92393f7192e669e85a5644a3ecb506d6...
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.