OpenTechnical

OT-2026-000020480

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000020480) never changes.

Identity and time

Publication numberOT-2026-000020480 · never reused
Internal UUID01a0ae6f-437c-7960-9f19-324e2e0e665c · 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-2026-000020480
StatusPUBLIC

Content hashes

Canonical text068ff7c32f62acbda31617263dbe13e524a365e8bd2ef06d27be88ca7cc43234
Markdownaac53d81e8014e55038bdc5ff7321d44852a2f40029163c0afd99b9a37f33c80
PDF
Publication page835857e2314babf15bc993f1314b7d1eb4b384d86c3678110a2eef8f05b07989
Manifest2dd7f45d1c754e4ec55ba9baa6e7efc2772fc2c9c4e9ed394d4adb375e7d09bb

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
SignaturesE3FpTLo6XssYCa9AquFCk73T1jUrzEpoCON+mHf/ZyC671LAFtTfPjs5UJAIBFnWhtS3C1kx0zMsXS77nSRCg==
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

2026-09-17T12:00:25.546537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480
observed 835857e2314babf15bc993f1314b7d1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:25.525869ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/manifest.json
observed 2dd7f45d1c754e4ec55ba9baa6e7efc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:25.502446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/publication.md
observed aac53d81e8014e55038bdc5ff7321d44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:00:25.477475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/publication.txt
observed 068ff7c32f62acbda31617263dbe13e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:29.313583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480
observed 835857e2314babf15bc993f1314b7d1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:29.294241ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/manifest.json
observed 2dd7f45d1c754e4ec55ba9baa6e7efc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:29.276416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/publication.md
observed aac53d81e8014e55038bdc5ff7321d44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:29.261178ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020480/publication.txt
observed 068ff7c32f62acbda31617263dbe13e5...
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.