OpenTechnical

OT-2026-000048519

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, pulsed 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-2026-000048519) never changes.

Identity and time

Publication numberOT-2026-000048519 · never reused
Internal UUID01a0ae80-4de6-7c69-84fc-fc7951f9ac97 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048519
StatusPUBLIC

Content hashes

Canonical text739ab6917b8153299193bf55b2d5bfa0f5be1196c895425d7daa6259ed049671
Markdown4e7950901ec4310897c5b15296cb9662f390e95623b28a37e6d98be44b481894
PDF
Publication pagee6571c9d0303c8e7dc90d69a03a222785db81db4930c968c2db0a76cbf1e93cb
Manifestefdbb4885bcae3c18ba0cec9e9b6aaba8df26aa53d19f2164a7ba6530ec8b674

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
Signature27cQQOBz33OsWP1m1sWUgHBPDoF6VaZpc3KcpQNOOlzKrTOVW//LNn18nJ94zg6+avSCFNNxR8vj2CYCcfgYDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T11:05:18.164776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048519
observed e6571c9d0303c8e7dc90d69a03a22278...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:18.140258ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048519/manifest.json
observed efdbb4885bcae3c18ba0cec9e9b6aaba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:18.048222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048519/publication.md
observed 4e7950901ec4310897c5b15296cb9662...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:11.913722ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048519/publication.txt
observed 739ab6917b8153299193bf55b2d5bfa0...
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.