OpenTechnical

OT-2026-000021733

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, sustained 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-2026-000021733) never changes.

Identity and time

Publication numberOT-2026-000021733 · never reused
Internal UUID01a0ae6f-bb59-71ac-baa4-5f085479bbd7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021733
StatusPUBLIC

Content hashes

Canonical text3850de496ee50fd60fca102ea4821a1f755d77076133d080d709da0bf9e154c8
Markdown320223d02c777f425b21fe56e78942fd27ddc69965525b4d1f33941b979106c8
PDF
Publication page34051f331dbd92cbc61b1b059d1a62dc6dfc592fe557143f1a5375a05d9b94e8
Manifestb9726d42027efe09a9d5d9dacb217d78986612311794bfb2b8d84172e7c2ccb4

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
SignatureIP5Wp2XDlek13Smt+pxbIpAxHAlRHTvbj92ah3nF5+DJgg0BDiDQknSbfc4jYvJDiWe+3QZFlGFttaQ1OQSFDg==
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

2026-09-17T11:54:16.334597ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021733
observed 34051f331dbd92cbc61b1b059d1a62dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.317264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021733/manifest.json
observed b9726d42027efe09a9d5d9dacb217d78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.299788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021733/publication.md
observed 320223d02c777f425b21fe56e78942fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:16.282191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021733/publication.txt
observed 3850de496ee50fd60fca102ea4821a1f...
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.