OpenTechnical

OT-2026-000012687

Publication integrity record

Four bellows cup vacuum gripper, four zone face, plant vacuum fed, 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-2026-000012687) never changes.

Identity and time

Publication numberOT-2026-000012687 · never reused
Internal UUID01a0ae6d-5562-76e4-ab8a-b2d6b4d8fd1c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012687
StatusPUBLIC

Content hashes

Canonical text3b5af032f8eb9198d5c2c4881b42b1851fe40bfd8b85368c1989b59dac23736a
Markdown82475ab8733fede46b84e5efe818dacfada0bdaaa9091cc738fdc149c74a9294
PDF
Publication page6253cabac789f250eddc5885636cd3a2401ec4a6fb3398598b8884fabac29dd6
Manifest3922df201c30afb097761dae1590c285ae576e14eec5fe639b5580c524dae02d

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
SignatureCAj9hHMsIY6ayxjxhsfYiY8bbiuGiQ1WEJqx4dj54sPg+gVVx84Xl7rRZxq5pLdAH+HKZLu1JTmTYNEzJoZIBw==
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

2026-09-17T12:10:20.227483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012687
observed 6253cabac789f250eddc5885636cd3a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:20.207040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012687/manifest.json
observed 3922df201c30afb097761dae1590c285...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:20.188771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012687/publication.md
observed 82475ab8733fede46b84e5efe818dacf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:20.169785ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012687/publication.txt
observed 3b5af032f8eb9198d5c2c4881b42b185...
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.