OpenTechnical

OT-2026-000019927

Publication integrity record

Four bellows cup vacuum gripper, four zone face, single stage ejector, 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-2026-000019927) never changes.

Identity and time

Publication numberOT-2026-000019927 · never reused
Internal UUID01a0ae6f-1fb7-7716-822b-526f1300e5bc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019927
StatusPUBLIC

Content hashes

Canonical text64f047bf594a037acb99afe17a933e45eaad0f954137cc6982c8fcdb0242b8d0
Markdownfd3d67bb89e4237811889cf6828abd9291125794713af12e655d63174b752f78
PDF
Publication page9c9b7cb7ce07749c04f8dfa86af6dddb7957c34add2a030469129eec2e992767
Manifest5192412334490b39d05323f3e525bd416a4cf83279800b53d5331d43ef5cd2f0

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
SignatureMlUmB6DZOcTYGlU2LNeZFqPoDdghTUHz+INplPVKZWC4nzOKy/xI8dpHODBbVUtT2q4w9gkrPxuTmSBdmp3DCQ==
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

2026-09-17T11:58:08.861290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019927
observed 9c9b7cb7ce07749c04f8dfa86af6dddb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:08.845532ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019927/manifest.json
observed 5192412334490b39d05323f3e525bd41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:08.827546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019927/publication.md
observed fd3d67bb89e4237811889cf6828abd92...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:08.809525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019927/publication.txt
observed 64f047bf594a037acb99afe17a933e45...
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.