OpenTechnical

OT-2026-000006731

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, plant vacuum fed, contact triggered, plastic cups

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-2026-000006731) never changes.

Identity and time

Publication numberOT-2026-000006731 · never reused
Internal UUID01a0a965-7400-78c2-ae1c-1d4af0a531b7 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:46:33.476352Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006731
StatusPUBLIC

Content hashes

Canonical textf00ed040647d9ffe9b82a58273faaeaeb3c73f9ccebe51f1153b46d3340cef82
Markdown8877d050bd7a5a87f6f2ad3ee6278815289111ff1e74fcd01ca01b2a17e6acf3
PDF
Publication page7c00beb70ea3ab8e871b2b2652f3e7650992e1bf773be336135a86dceeae724c
Manifestac5fcf4114f5500845d74ef9fc2ec77bf2918ac267fe016af2df6e557e244db2

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
Signature12qXcdQRRzxw+X//vdNup3F70gkePYdPE6Gcqbh3/ByS25gACaqDiBTuoxOxsYv89NLKZjzChxYnW2Yb3KxZCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:12.465999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006731
observed 7c00beb70ea3ab8e871b2b2652f3e765...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.453548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006731/manifest.json
observed ac5fcf4114f5500845d74ef9fc2ec77b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.440931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006731/publication.md
observed 8877d050bd7a5a87f6f2ad3ee6278815...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.427528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006731/publication.txt
observed f00ed040647d9ffe9b82a58273faaeae...
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.