OpenTechnical

OT-2026-000077339

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure sensor per zone, pulsed blow-off before set-down, on a tool changer

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-2026-000077339) never changes.

Identity and time

Publication numberOT-2026-000077339 · never reused
Internal UUID01a0ae94-f509-709c-8961-6b20d420a2d0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077339
StatusPUBLIC

Content hashes

Canonical texta0c37caeea2ef6e0cfd644732e0371aecfb1d891987e6aaa438c3ff512e1de62
Markdown534316ef3275ff6765b161567e676d888c27204da54ae0973311206b2fb90b04
PDF
Publication pageb2e2a9880af09864fcbf279cffa20c15cd3cf49704eaeec3de9ea9d1d01473f0
Manifestcf02468e630d3de0917e9db4c38147c8cfb795c0bdbdf93d4c425f302d31c8ad

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
SignatureNM9Kj4oHplWFDoAHMAUlsLqHzD8qmlzr1zib6MLdDz4mY+O67pLINCz7dkBtKENJcVrvWZ5z6oQQ/HelWmFKAA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:08:58.752932ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077339
observed b2e2a9880af09864fcbf279cffa20c15...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:58.734752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077339/manifest.json
observed cf02468e630d3de0917e9db4c38147c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:58.715141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077339/publication.md
observed 534316ef3275ff6765b161567e676d88...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:58.696098ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077339/publication.txt
observed a0c37caeea2ef6e0cfd644732e0371ae...
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.