OpenTechnical

OT-2026-000099780

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three 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-2026-000099780) never changes.

Identity and time

Publication numberOT-2026-000099780 · never reused
Internal UUID01a0aea2-c977-76e4-8c14-0c09a670a80f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:39.138466Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099780
StatusPUBLIC

Content hashes

Canonical textcfee3616a408315959a6589998bb2aa1be1db2df42f6830da79fa7f6bf2ef936
Markdown74de3e21628ce0b1f9f41f3b871d01ba6837776ec1d6b853d7ed76283b121be0
PDF
Publication page8babf54576799ec5be3c5b819f54da1b04a4a7585d64dd5881a60ff50f44de52
Manifestd0cd9f8d850e24618ea80b38a72d1acf3c8d4d4982b544012b623143c919f067

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
SignatureOO1NSSOPZ9E2w2znM4Pin4OOpJUKlJru080RjflcuAL8vF5F3vzAv0Nx1mzb2Dl/8d6Fm+36m2s7ZpS4WJByCg==
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

2026-09-17T09:29:48.940620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099780
observed 8babf54576799ec5be3c5b819f54da1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.924028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099780/manifest.json
observed d0cd9f8d850e24618ea80b38a72d1acf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.906608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099780/publication.md
observed 74de3e21628ce0b1f9f41f3b871d01ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:29:48.888031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099780/publication.txt
observed cfee3616a408315959a6589998bb2aa1...
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.