OpenTechnical

OT-2026-000073306

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000073306) never changes.

Identity and time

Publication numberOT-2026-000073306 · never reused
Internal UUID01a0ae92-efb7-7f91-89bd-fc1960705383 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073306
StatusPUBLIC

Content hashes

Canonical texta51e81ece6edea6d10a22b487b256b9eb3ea2d6c8a3929034d4752b7db452df4
Markdown9b765834fabb5b13c138fa17bdba244e6da3f9ef8e03edb2654831b7f20e53b9
PDF
Publication page4e3c52dd65b9d45c6a35afbb1e716c78fce1f4beca303e0ca046dbcbf6e6c51e
Manifest75f62ae53199edeb132d3c05cae85f972656d0c861aca5627c46424b7147fc47

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
SignatureONL+dNfm//S3Tq6D3qUMT6hPCopBqhfUQOOi/P3NCxtEehFevSUzVqKaubV3SvjtYmP7M3tKK8RMNEqQwUwLDw==
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

2026-09-17T10:21:15.264123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073306
observed 4e3c52dd65b9d45c6a35afbb1e716c78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:15.244887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073306/manifest.json
observed 75f62ae53199edeb132d3c05cae85f97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:15.226403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073306/publication.md
observed 9b765834fabb5b13c138fa17bdba244e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:15.204780ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073306/publication.txt
observed a51e81ece6edea6d10a22b487b256b9e...
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.