OpenTechnical

OT-2026-000020293

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, supply line pressure sensor, pulsed blow-off 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-2026-000020293) never changes.

Identity and time

Publication numberOT-2026-000020293 · never reused
Internal UUID01a0ae6f-437a-7cf5-96f0-7a8b100dd14f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020293
StatusPUBLIC

Content hashes

Canonical text1237cc58833e99341ba0142fa4f91a63e0a9b916f6953294e5e677cf066afea8
Markdown68730e73bfaf74d15d6100744010d9da4443dc964fe286d6325c67ad0e2ee374
PDF
Publication pagedc9d6f11e57112bd9a4194c6b2520e8011f6da4346cf403facc5a6a53e9b605d
Manifest6f4362b8bd949b9102eaea61b2fbf759b7076d1a386f1f71806ec838566d250e

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
SignatureDEyRBqHsems37lfJKJR3l2lXdD/ZZqcilOynLClzwRU7l3O2bpz4G5CLrWGo6fHvOMRetFTgCu2jjTxmdT7KDQ==
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

2026-09-17T11:56:39.258218ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020293
observed dc9d6f11e57112bd9a4194c6b2520e80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.239351ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020293/manifest.json
observed 6f4362b8bd949b9102eaea61b2fbf759...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.218779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020293/publication.md
observed 68730e73bfaf74d15d6100744010d9da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:39.196896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020293/publication.txt
observed 1237cc58833e99341ba0142fa4f91a63...
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.