OpenTechnical

OT-2026-000020680

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, single stage ejector, supply line pressure sensor, 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-2026-000020680) never changes.

Identity and time

Publication numberOT-2026-000020680 · never reused
Internal UUID01a0ae6f-65e2-71c9-b2db-b6633b5d48ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:31.316024Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020680
StatusPUBLIC

Content hashes

Canonical textfeb2a915a62c054787a1bcf231551a7727418ff61eb88867e56659e862422693
Markdowncb82843067ff7b3fd13d92b336e02481951c2a71181adf13bd5339558c635fdb
PDF
Publication page4aef8df4855296da7bc2cb76415a0748e7218a8d07ecbc41980ae49dbbe0ef5e
Manifest4dad0ae7cc421e40e31aee1d1f60b91ec956d6b868b26e11b613b4c8d6b2998a

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
SignatureHb5ZyNt2J6S+YCLw18uR9QXfhIsYQtCIuIew8iZtfaj0LMZAEEs7/BwHGqbKsgLGp/a0yjfA8ad2ip9pq0J9CQ==
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

2026-09-17T11:55:43.097222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020680
observed 4aef8df4855296da7bc2cb76415a0748...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:43.075262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020680/manifest.json
observed 4dad0ae7cc421e40e31aee1d1f60b91e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:43.055096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020680/publication.md
observed cb82843067ff7b3fd13d92b336e02481...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:43.033034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020680/publication.txt
observed feb2a915a62c054787a1bcf231551a77...
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.