OpenTechnical

OT-2026-000091681

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, 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-2026-000091681) never changes.

Identity and time

Publication numberOT-2026-000091681 · never reused
Internal UUID01a0ae9d-43b8-7bce-817b-e76c6d3b87db · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091681
StatusPUBLIC

Content hashes

Canonical textef0c40a6057317ee54ff9b8e02247a23388e0004781fd17b01b32b41b8d5dae0
Markdown94b3660ebf7eb84825885fd0db5dc9b4ab5c8fcbe16fa7857d142062866e296a
PDF
Publication pagefc0025ca5a0ba22b6ddbabd929d9db87864056c6fd9f8c6cd2254c1ef2b24b5d
Manifest778ffa59e2e00ae801666f465dfc9514ad70cc618daa2864543c9d6cfb05c839

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
SignaturedmdNj2gIYVJ74yAJPC3d1L0zJSdPU2Enl6ql6OwPQGPxTGDHTrFmywH8Wfw8xiNtqKXZkoYnIFDU1QMbANOVDw==
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

2026-09-17T09:42:03.823618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091681
observed fc0025ca5a0ba22b6ddbabd929d9db87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:03.805424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091681/manifest.json
observed 778ffa59e2e00ae801666f465dfc9514...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:03.787644ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091681/publication.md
observed 94b3660ebf7eb84825885fd0db5dc9b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:03.770075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091681/publication.txt
observed ef0c40a6057317ee54ff9b8e02247a23...
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.