OpenTechnical

OT-2026-000011831

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000011831) never changes.

Identity and time

Publication numberOT-2026-000011831 · never reused
Internal UUID01a0ae6d-1941-740f-97a5-66796ef667c3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011831
StatusPUBLIC

Content hashes

Canonical text9e7db431a5bb45917ff9ca55c0fbad8d2c3ffa000f42357705916bfb7e41ea04
Markdownd2e7c65a640457f21770854e4ea894c307dcb91db9469441610fcf9fd0addce5
PDF
Publication page6a14a925f6e8dfdc14129d3e9deaf119404a2ccdd4bd83626c7a1feab22d375b
Manifest6b219e0d7ec50b9acb1aa07ec8df8bdebc1253a1baa2015755db1788b4799d77

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
SignatureWufAQzaDI24h/PS8c/8vyym/jAeJJ4GzFUQZF/gmswcDyTl+NzThwm9Ko9Rkzq8HfPdutT+oifyUuNvxDi9QAg==
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

2026-09-17T12:12:33.971368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011831
observed 6a14a925f6e8dfdc14129d3e9deaf119...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:33.950319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011831/manifest.json
observed 6b219e0d7ec50b9acb1aa07ec8df8bde...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:33.931127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011831/publication.md
observed d2e7c65a640457f21770854e4ea894c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:33.911975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011831/publication.txt
observed 9e7db431a5bb45917ff9ca55c0fbad8d...
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.