OpenTechnical

OT-2026-000021435

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pulsed blow-off 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-2026-000021435) never changes.

Identity and time

Publication numberOT-2026-000021435 · never reused
Internal UUID01a0ae6f-865d-7c89-a9e2-370af0b3dd6e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021435
StatusPUBLIC

Content hashes

Canonical texta69fc6e792c91c17d14063d7d2a384e1e4d3492c03b6cc46b446c5470a1b0b07
Markdownee9f372d04cb2c4d4f2ba803e1a797c148e17bf3496f65d667d39b0f6777a72b
PDF
Publication page3bbbc5bfc7a2d9e7cf73195f6eeb7e2e38e7cdea1b915c8061e36c36587064ab
Manifest1055af7bdea4b5de6afa7f303700cbb6ab909672a4668deb208420523d542d98

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
SignatureAOPwj5D1EcfRmy/euoYiCb96OD7eH7qrc1sfIELFmbsXnKfqHyBD78PmKavT+lG52O8Qy4Prjw+Akai/1oQUBg==
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

2026-09-17T11:55:20.544417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021435
observed 3bbbc5bfc7a2d9e7cf73195f6eeb7e2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:20.522192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021435/manifest.json
observed 1055af7bdea4b5de6afa7f303700cbb6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:20.498535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021435/publication.md
observed ee9f372d04cb2c4d4f2ba803e1a797c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:20.475213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021435/publication.txt
observed a69fc6e792c91c17d14063d7d2a384e1...
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.