OpenTechnical

OT-2026-000048699

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000048699) never changes.

Identity and time

Publication numberOT-2026-000048699 · never reused
Internal UUID01a0ae80-c32b-78c5-861a-6b83e458de79 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:29.321882Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048699
StatusPUBLIC

Content hashes

Canonical textaafa2fc6cfbcd1502de6ae2ef6db98d98f0dbb73e5e1925e58149a264f797c59
Markdowne207b65a4fd494fc5f22b0a95529fcdb17ad32f53bf3fa630ae985233425e3b1
PDF
Publication pagee9b4f0632e34fadcc257c8093f967e3928e1f279062e2d937d85808918275d4f
Manifestb1c106b7d001dc72ee50f32fc97c412f6f1ac367360033c844b439f8c23b3346

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
Signature8SsMIrDMPj7eYChYIbucObl7M2XdmVgAB73gUpyx6iCqE8RpvgeOOFR0IChs+Vct3THv6x6VIDIb/eRIH6pDCg==
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

2026-09-17T11:04:20.049593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048699
observed e9b4f0632e34fadcc257c8093f967e39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:20.027807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048699/manifest.json
observed b1c106b7d001dc72ee50f32fc97c412f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:20.006041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048699/publication.md
observed e207b65a4fd494fc5f22b0a95529fcdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:04:19.981862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048699/publication.txt
observed aafa2fc6cfbcd1502de6ae2ef6db98d9...
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.