OpenTechnical

OT-2026-000076489

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, pressure sensor per zone, 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-2026-000076489) never changes.

Identity and time

Publication numberOT-2026-000076489 · never reused
Internal UUID01a0ae94-6a71-79b6-9d30-ae96c846c75e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:57.307071Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076489
StatusPUBLIC

Content hashes

Canonical text6c42a61cacbae753618d50e8f560641bf7e7d311b904519823067bbc4dc94ea7
Markdown145744bbcb4c4155dfa07b94561a4ca0a16c49374850fdb568d246eff155bf99
PDF
Publication page8271d33e0f6483b07da1b25ef66884502d19d532b6e71843efc0ffd068af7e84
Manifest278f1e6fcca2bbbcffe65bfea2a83ea81fadfd12daeaad8d8541d2fce01f90bc

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
SignatureICHepEmcbgrEDtySQ3fSp9ZBgHiA5uYOsIx2mlEdGofh1Px6vERclMY3AV+4EtaDeZhVlEI5BFi4VEWTD82WCw==
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

2026-09-17T10:12:43.963149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076489
observed 8271d33e0f6483b07da1b25ef6688450...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:43.943169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076489/manifest.json
observed 278f1e6fcca2bbbcffe65bfea2a83ea8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:43.547862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076489/publication.md
observed 145744bbcb4c4155dfa07b94561a4ca0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:43.529180ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076489/publication.txt
observed 6c42a61cacbae753618d50e8f560641b...
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.