OpenTechnical

OT-2026-000072412

Publication integrity record

Single bellows cup vacuum gripper, pump fed, supply line pressure sensor, vented 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-2026-000072412) never changes.

Identity and time

Publication numberOT-2026-000072412 · never reused
Internal UUID01a0ae92-89d7-7740-a4bf-31135b3dc4fb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072412
StatusPUBLIC

Content hashes

Canonical text92ed8c904211946448096f115d51e5ff1480fbc63cee1755ee9f3957807e35fb
Markdown99e52f37eeeab743224b5cabe11829b19f765a8cc39347eb702a74ef7c10bc1d
PDF
Publication pagebd0a8888db91aced400c442e3559a8dc0222c41d989259b1b9eb262a5c8ca3b6
Manifest78133e0aefbbf1791902f3d96faf1ea1d581008f14c4bd87cf44be52e6f39699

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
Signature1TFh+aLIA74iQ+WOhebBE3jCQIhnDdEF+/zEwRGAKkOdrT2GzfBnr6LhsbIO1/0j6NNi+j8iIwdu5UjPUCBdDA==
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

2026-09-17T10:22:11.901896ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072412
observed bd0a8888db91aced400c442e3559a8dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.883114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072412/manifest.json
observed 78133e0aefbbf1791902f3d96faf1ea1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.864929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072412/publication.md
observed 99e52f37eeeab743224b5cabe11829b1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.846331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072412/publication.txt
observed 92ed8c904211946448096f115d51e5ff...
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.