OpenTechnical

OT-2026-000090297

Publication integrity record

Two bellows cup vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000090297) never changes.

Identity and time

Publication numberOT-2026-000090297 · never reused
Internal UUID01a0ae9c-4290-7453-9aae-fe07fe7ba6ed · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090297
StatusPUBLIC

Content hashes

Canonical text9f8a1e266afa74f9c646d94032e0a130e7591cd691f68daa5a86bea5c609fc12
Markdownde8c05fd73ea3dbf38a1505252616aa16d136cf2dbf03288e8dafa90756da806
PDF
Publication pagecff2cbb96e928955b26d12694568814933328c250d418edf2eb652c3d51f145d
Manifest6b29d8c54d058b770ad289f4ac4b62b6dcaa26df83403bffc386c0e0c5c0ea2b

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
Signature5q1JOao1q2VAvd4rGl+CMpBpIzvKbMJPZRICTbBRApyedXOyBqcvAMA9fRGRuysKYrmuuPUj6qwjk5+t57OXAQ==
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

2026-09-17T09:46:23.033569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090297
observed cff2cbb96e928955b26d126945688149...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.017147ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090297/manifest.json
observed 6b29d8c54d058b770ad289f4ac4b62b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.999419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090297/publication.md
observed de8c05fd73ea3dbf38a1505252616aa1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:22.981093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090297/publication.txt
observed 9f8a1e266afa74f9c646d94032e0a130...
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.