OpenTechnical

OT-2026-000021156

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, plant vacuum 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-2026-000021156) never changes.

Identity and time

Publication numberOT-2026-000021156 · never reused
Internal UUID01a0ae6f-865b-7909-83fa-4e1a2e06f238 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021156
StatusPUBLIC

Content hashes

Canonical texte614399fcf4511a6bda06346fc0c7b92702a6a841cfad912abb492fa90c71195
Markdown28b988a80a52653ce45e672512c0e6f05abd651c3d017a9e2cc8b6fc18a8fcc0
PDF
Publication pagef82d3421d593e2e6dbbe8f08c28dee427bc05ae109d1931dcdb196864edb0f8b
Manifest7318aa8a30ea95bde327de1302f3dc2a773c732dd9742250e6272b93592bbf52

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
Signaturev0r8cjXZPHpd8Vw1BsclcnRX6I4jr1qZKhkOIjyAZYxvCUeaTRCtG3vSQkzn4DziS+oC4tuqns/oyvQ5migoDg==
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

2026-09-17T11:54:55.044598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021156
observed f82d3421d593e2e6dbbe8f08c28dee42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:55.027794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021156/manifest.json
observed 7318aa8a30ea95bde327de1302f3dc2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:55.008876ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021156/publication.md
observed 28b988a80a52653ce45e672512c0e6f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:54.954855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021156/publication.txt
observed e614399fcf4511a6bda06346fc0c7b92...
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.