OpenTechnical

OT-2026-000048571

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000048571) never changes.

Identity and time

Publication numberOT-2026-000048571 · never reused
Internal UUID01a0ae80-4de7-7961-9f5d-8d882892eabf · 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-2026-000048571
StatusPUBLIC

Content hashes

Canonical textd773b390f5324e02c287cd61b3c15784bdd3141eafd6c46598c7c6dd358531bf
Markdownbb647c432b0a8eed84765d51d1a7ef2ab6bf9ef3db3e0337902675bb0c1e46e0
PDF
Publication page45bf19e0b1e19bc396bd4829d9d5962a82320732ec269a2f42b306ae146615d5
Manifestea92b6aef9389e5908e816f6284f05b75abb6c44b235050e6985a96f12bd0b87

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
SignatureHKOS1lK5X3YZlRrfIbTaGCnAm6HMrywF6sRORHfa1Y5IA/Bb8y/nqRcD4PGwBSgj45G1uUyHl0iGF9xkcsy+Bg==
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

2026-09-17T11:05:22.448530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048571
observed 45bf19e0b1e19bc396bd4829d9d5962a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:22.424670ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048571/manifest.json
observed ea92b6aef9389e5908e816f6284f05b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:22.404770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048571/publication.md
observed bb647c432b0a8eed84765d51d1a7ef2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:22.381149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048571/publication.txt
observed d773b390f5324e02c287cd61b3c15784...
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.