OpenTechnical

OT-2026-000055887

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, two stage ejector, supply line pressure sensor, pulsed 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-2026-000055887) never changes.

Identity and time

Publication numberOT-2026-000055887 · never reused
Internal UUID01a0ae87-0a49-736e-992d-20f2ea8f45d9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000055887
StatusPUBLIC

Content hashes

Canonical textaa593354b1d2de9bbbab7f690fc787c011f11bba66b7a290026641670bebb20b
Markdown3ebd64aa4df244fd046223227c3a3ca458a824723d83509fd8fc3112ca2cee2b
PDF
Publication page92a5b157621019d156d3eded88d792731118bc9442c32689312478193d96dad4
Manifest16484f1ffded7fdb6ed9ac91b31e5db985add5908f5fb92c0d8501c5fc85a9d1

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
SignatureOoyfIfj6oCXObKwD9nqNDQRmI6Rm1UoYkLkCNrcvsGzZHOcf5uTHVWzdsBxPiRhlZdRIosONBlHF5eHBph3TDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:17.491406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055887
observed 92a5b157621019d156d3eded88d79273...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:17.472935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055887/manifest.json
observed 16484f1ffded7fdb6ed9ac91b31e5db9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:17.456313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055887/publication.md
observed 3ebd64aa4df244fd046223227c3a3ca4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:17.437725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000055887/publication.txt
observed aa593354b1d2de9bbbab7f690fc787c0...
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.