OpenTechnical

OT-2026-000005923

Publication integrity record

Vacuum cup gripper, common isolation valve, three stage ejector, sustained 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-2026-000005923) never changes.

Identity and time

Publication numberOT-2026-000005923 · never reused
Internal UUID01a0a949-5586-7268-bb7c-115de62ee8d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:15:50.666268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005923
StatusPUBLIC

Content hashes

Canonical text4dc0b03d501efd549614c5c00234ae607bb0cf93deac4520ec65fd3257b7887a
Markdown0b5b88708a9014fb45ab9749d797a6164c3d759c92e795481d0b51ed11ec5ee4
PDF
Publication pageb6a23703e62f9f9ec6704fee5cedd790f43a4056c1ecc43de745b7427a5b8a01
Manifest650a874d87a6353e0a193105c55b888043f04d7c7856619655590915a382e13d

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
SignaturepAIOFzHnaXsuEMyTKSLKp/dUgj4sxYNkrLJcEs5jIo7kKNo+ziyfw/MVHnkMRLvnjeC5Oi/dd7FY2BKemEWaAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:41:07.182089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923
observed b6a23703e62f9f9ec6704fee5cedd790...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:06.695070ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/manifest.json
observed 650a874d87a6353e0a193105c55b8880...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:06.374197ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/publication.md
observed 0b5b88708a9014fb45ab9749d797a616...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:41:05.898536ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/publication.txt
observed 4dc0b03d501efd549614c5c00234ae60...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.982449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923
observed b6a23703e62f9f9ec6704fee5cedd790...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.964510ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/manifest.json
observed 650a874d87a6353e0a193105c55b8880...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.946091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/publication.md
observed 0b5b88708a9014fb45ab9749d797a616...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:16.929669ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005923/publication.txt
observed 4dc0b03d501efd549614c5c00234ae60...
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.