OpenTechnical

OT-2026-000031378

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, 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-2026-000031378) never changes.

Identity and time

Publication numberOT-2026-000031378 · never reused
Internal UUID01a0ae74-87ad-7646-9773-ae86231cfe3e · 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-2026-000031378
StatusPUBLIC

Content hashes

Canonical textb9fcc163a734e881ae94b4db9d8ddba7dc54dbd891121eba9f7fef69e992ba11
Markdown6df62d137c9d14677264cd873ef5a54345e4fcf095dd5e89c9ae5bd426a60ea2
PDF
Publication pageb1ba94fbbd88d82084bc3c9e51d8af14f861300da81a086bc344956d8dc07965
Manifest25dd82aba5d21de22d1e25908cf2dd545549940d5de2114017200a07d54b518b

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
SignatureBXkmF0sv+72anelQqyXvwKoqW17L9vxO6UaH5hkhHAnnEdeNH44+EUHE0EJld2C0cLGHZqPpHAjYucRWOH6+Dg==
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

2026-09-17T11:36:05.073683ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031378
observed b1ba94fbbd88d82084bc3c9e51d8af14...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.056542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031378/manifest.json
observed 25dd82aba5d21de22d1e25908cf2dd54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.037472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031378/publication.md
observed 6df62d137c9d14677264cd873ef5a543...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:05.017223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031378/publication.txt
observed b9fcc163a734e881ae94b4db9d8ddba7...
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.