OpenTechnical

OT-2026-000047771

Publication integrity record

Two cup vacuum gripper, two 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-2026-000047771) never changes.

Identity and time

Publication numberOT-2026-000047771 · never reused
Internal UUID01a0ae7f-c420-7334-a509-6f5c426f39ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047771
StatusPUBLIC

Content hashes

Canonical text688f1325eded54939179e6815c159a73ac0866f22e022df7ec9ee0bf32fbcc91
Markdown2ea68c348de78cc23c1c02e20ca667687e30f9ab3cc8f937ce123e201f7af421
PDF
Publication pagea9bbf813d66ff7318c5de20e45fcc4385c71c049cdb8ade7a37b79cc2e8916af
Manifestb68e740b9b75ae5cdb14a10cc23a5feb5a6bab5362eda0f936c29a1fa51471c0

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
Signatureb+Hev7vKrjmJffpv/LdSv8VSQMqlqKB0a5NdfAcCbHYoBwCcCqjqMbEULBQ7st5USbGEKlRG8nr3LhzLESs4DQ==
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

2026-09-17T11:05:39.778482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047771
observed a9bbf813d66ff7318c5de20e45fcc438...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:39.760461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047771/manifest.json
observed b68e740b9b75ae5cdb14a10cc23a5feb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:39.742215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047771/publication.md
observed 2ea68c348de78cc23c1c02e20ca66768...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:39.691028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047771/publication.txt
observed 688f1325eded54939179e6815c159a73...
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.