OpenTechnical

OT-2026-000072843

Publication integrity record

Three cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, 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-2026-000072843) never changes.

Identity and time

Publication numberOT-2026-000072843 · never reused
Internal UUID01a0ae92-89da-71a4-897e-a65006ce3fb6 · 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-2026-000072843
StatusPUBLIC

Content hashes

Canonical text5ca3dae079f23c37f956b4949144e9bd51df32b9eb5151e00223b0ef343e16c8
Markdowna87fe03d885d47e87af3e53d1ad0bdf997b10d8b76fd70b28d3d02cf19b7725f
PDF
Publication pagee3fc55c5e7690a1b4fa3d78d865602848616c142ae2b1663ac04a0722fadbd66
Manifest3f65b352d7b9267968ef2b2059539081e38ca9d656783a18e3e7576779263429

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
SignatureAhhChNCXLUkkxWfWuKa6XyRmZAiqT5dvTMTvcsWHLQTvO27AABW3FmToXLQw4XHW1l+85UhkTcYyDDur340LAw==
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

2026-09-17T10:22:45.876551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072843
observed e3fc55c5e7690a1b4fa3d78d86560284...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.860494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072843/manifest.json
observed 3f65b352d7b9267968ef2b2059539081...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.843207ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072843/publication.md
observed a87fe03d885d47e87af3e53d1ad0bdf9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.826125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072843/publication.txt
observed 5ca3dae079f23c37f956b4949144e9bd...
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.