OpenTechnical

OT-2026-000100380

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, sustained 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-2026-000100380) never changes.

Identity and time

Publication numberOT-2026-000100380 · never reused
Internal UUID01a0aea3-66ee-7a89-8f5c-e0e0ff4bebcf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:12:19.463543Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000100380
StatusPUBLIC

Content hashes

Canonical textc8a6bd322a9a0b04419c7fe439e124f82c2528b6efee61ef73506e6b6694445c
Markdown705806e5b3a321319017d292b324628415ff11db6ce525ee05fb7bb1eb1db8b4
PDF
Publication page50d126ef409ff2d374a8af9edb83f78535aa3fdbf7f657a4504dce628f5cbd7e
Manifest43847a21488504427df4adfa132a3d834017716b26954d798e4b43d9c05c3d30

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
SignaturehZH97SG56Hdm5T+tZJs3jvl38mYGNH6Gx9F1iHSN2KvFHjxHw2zduXa3oMeZ+xKP2iv5A8tGaAaoS8qm1V1iCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:27:06.642564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100380
observed 50d126ef409ff2d374a8af9edb83f785...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:06.624943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100380/manifest.json
observed 43847a21488504427df4adfa132a3d83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:06.608223ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100380/publication.md
observed 705806e5b3a321319017d292b3246284...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:27:06.591603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000100380/publication.txt
observed c8a6bd322a9a0b04419c7fe439e124f8...
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.