OpenTechnical

OT-2026-000076823

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, pump fed, 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-2026-000076823) never changes.

Identity and time

Publication numberOT-2026-000076823 · never reused
Internal UUID01a0ae94-b070-78c5-8089-ec876d1e2885 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076823
StatusPUBLIC

Content hashes

Canonical textbf9076ee29d2762b9a34471ce600ae0d04e85fd40a171b38c18f78611d9f6cbf
Markdowna5228a0c660149ca25960f7482abc1eb629a95f259ef9fd3203d2242e95c677e
PDF
Publication page26d5d6ce1c870a28b94e2f5cfae10dd7ad5ed309d9b3d869bb52fa02ec4cb486
Manifest8213781572c50c76f5dbbeb3d582fb0228cc653a5538c6dbd4dc8ccc9dfce21d

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
SignatureSYg/0uJmtwOhrVHKnP2i3qmJYTbc24us3J6nji33zRg/eqwh/PN83adL5Ltf9PqHSZSATy+BAVD6Wqf4CSScCg==
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

2026-09-17T10:09:42.020366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076823
observed 26d5d6ce1c870a28b94e2f5cfae10dd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:42.000385ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076823/manifest.json
observed 8213781572c50c76f5dbbeb3d582fb02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:41.982010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076823/publication.md
observed a5228a0c660149ca25960f7482abc1eb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:41.964447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076823/publication.txt
observed bf9076ee29d2762b9a34471ce600ae0d...
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.