OpenTechnical

OT-2026-000090871

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, single stage ejector, 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-2026-000090871) never changes.

Identity and time

Publication numberOT-2026-000090871 · never reused
Internal UUID01a0ae9c-c010-7041-8dfa-46b963568cc3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090871
StatusPUBLIC

Content hashes

Canonical text9450d4b52d445e4fb93c302c12cbf33fbcc6ad3cb9731d4cf4b3809ce2446642
Markdown0f7e739e3bab88cd6faf20566fe54829cd030de95456831d8c988c0f0374f3a6
PDF
Publication page561efc1c27623ecceb1970c2dde44e0292abc4720891899ddd57c1b374f8e7eb
Manifest54e6e1c8e0f57ea3992a8fd9670d42f070401b1bcd8a29d770821f274d665baa

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
Signature6W/jzV/RC/dTBZsPnmqTOkhoC7NDarXO3EZQx3Q5xjq8uYC5SvHcksH5l8FqArJAemW1AkVh39kRVfiw18VFAQ==
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

2026-09-17T09:44:03.906552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090871
observed 561efc1c27623ecceb1970c2dde44e02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.888230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090871/manifest.json
observed 54e6e1c8e0f57ea3992a8fd9670d42f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.868522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090871/publication.md
observed 0f7e739e3bab88cd6faf20566fe54829...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.849473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090871/publication.txt
observed 9450d4b52d445e4fb93c302c12cbf33f...
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.