OpenTechnical

OT-2026-000077609

Publication integrity record

Foam pad vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000077609) never changes.

Identity and time

Publication numberOT-2026-000077609 · never reused
Internal UUID01a0ae95-2ece-792f-bad0-581fa8067a29 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077609
StatusPUBLIC

Content hashes

Canonical textf2d989f188c68df4c7bd1d120f416bbc9bca77fa6914702be48550224136e817
Markdown3f466aa2b0f5c51d8e6f7e1dd30bd42f29b46b9e476aebf145fa8777a45c263e
PDF
Publication page467cd6a49f82f26995cce05d5de4b53b3021de9abc86454b7df1b6376339d74e
Manifest28a26a9154378a93e6e881e22cbf3f94fe5b9760856d187fdaa578598f48c825

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
SignatureU9FG2sx+7TsQj4ngcMzIJAKmFrsClMarvzLf8NfHsvmpPMRczqosHIn5G1/iZtmmZQugSBmfxizvWPNsAE1wAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:07:10.146762ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077609
observed 467cd6a49f82f26995cce05d5de4b53b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:10.129573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077609/manifest.json
observed 28a26a9154378a93e6e881e22cbf3f94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:10.110531ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077609/publication.md
observed 3f466aa2b0f5c51d8e6f7e1dd30bd42f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:10.090293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077609/publication.txt
observed f2d989f188c68df4c7bd1d120f416bbc...
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.