OpenTechnical

OT-2026-000033193

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, pulsed blow-off after 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-2026-000033193) never changes.

Identity and time

Publication numberOT-2026-000033193 · never reused
Internal UUID01a0ae75-4844-78f9-b4a1-604de6b2aea1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033193
StatusPUBLIC

Content hashes

Canonical textdbfc3cbacb85d008064ff8e0b3992fed9471532b767e07ddbcfdff7cc93fb387
Markdown9f710232fd742d7dce1bba8b9e4516622ffce90b6d6c15eb13c167def257f5a5
PDF
Publication pageba664123bf23612b6b4abe7a22dd4e8f167ef396bb0bfd32439402ca8c1921ed
Manifestfbbb50572331a014f9092ba1cbfedf2bbac82499feef2caf4f46192ededd539b

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
SignatureQzmpZm6bzWcwwQEnGEzPFFIDgNN1qT6AmyI+Dz0rDftC/myxN4x6pXeWA/NfYRJFbiX8MRONNo9n5ICQkZEaBA==
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

2026-09-17T11:32:53.391126ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033193
observed ba664123bf23612b6b4abe7a22dd4e8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.373631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033193/manifest.json
observed fbbb50572331a014f9092ba1cbfedf2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.355953ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033193/publication.md
observed 9f710232fd742d7dce1bba8b9e451662...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.339291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033193/publication.txt
observed dbfc3cbacb85d008064ff8e0b3992fed...
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.