OpenTechnical

OT-2026-000056131

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000056131) never changes.

Identity and time

Publication numberOT-2026-000056131 · never reused
Internal UUID01a0ae87-0a4b-7c16-83bc-2ba12833f81a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:20.734835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056131
StatusPUBLIC

Content hashes

Canonical text1393439e242d9f36bf2c34b10589269e135119def0bf063359102f62547126c9
Markdown4b333b3e1c157497cab371a3971cdca584780966d502c0c870b1545b0554f502
PDF
Publication page2338786e55ce26e3da353d0a7965390b02492ed4403782f35c6691ee8a423d85
Manifest3a4662c5d4e96396e3e3c9cac0b1245ecc2f34d9e0fd27eeaf881c8dbfb6ce4e

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
SignatureIz6VUtMqoSV9qt0v9gD8QfjY/2liHQqaV6rK8ZbCkyaiKvIBlplqZ/QmCn8BLdKJz2qJJbyFzOwwshritrCYCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:51:40.757776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056131
observed 2338786e55ce26e3da353d0a7965390b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.738774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056131/manifest.json
observed 3a4662c5d4e96396e3e3c9cac0b1245e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.719842ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056131/publication.md
observed 4b333b3e1c157497cab371a3971cdca5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:51:40.691066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056131/publication.txt
observed 1393439e242d9f36bf2c34b10589269e...
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.