OpenTechnical

OT-2026-000042481

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained blow-off after 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-2026-000042481) never changes.

Identity and time

Publication numberOT-2026-000042481 · never reused
Internal UUID01a0ae7a-c0cc-7f3c-ac25-329735979dd2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042481
StatusPUBLIC

Content hashes

Canonical text7e6ea2e9f8e674111e19a1e3aafb2fc04b077532c0b9fe4662b47e5d0c338ffe
Markdownd8558aad378bd91d947a4d78b84c701e81fe68b90a0c0e2465055c1b745c23af
PDF
Publication pagea3a61204ba220ee8113459319f4e1bf74927c2ce3e0e66b93beede12aeb17dfd
Manifest5693c886c11c907c81c58c702342fa95509236d84ceef633106f367c35edd835

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
SignatureCSAHn1up1dwK1nBPiw4gKIQMQlYoLso3AwDd4qxVl6Gm46Em2PMw0jL8hmG3CCs2TMtxnHw9j3voTCqsgeajCA==
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

2026-09-17T11:14:03.035726ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042481
observed a3a61204ba220ee8113459319f4e1bf7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:03.015875ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042481/manifest.json
observed 5693c886c11c907c81c58c702342fa95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:02.964845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042481/publication.md
observed d8558aad378bd91d947a4d78b84c701e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:02.914067ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042481/publication.txt
observed 7e6ea2e9f8e674111e19a1e3aafb2fc0...
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.