OpenTechnical

OT-2026-000081292

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000081292) never changes.

Identity and time

Publication numberOT-2026-000081292 · never reused
Internal UUID01a0ae96-f374-7b6e-b439-1ae29e20811c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081292
StatusPUBLIC

Content hashes

Canonical textaf25979609a96e495704612d8f129f05604ec84cd7ed8ea36a71cfa71c76bff9
Markdown00e300f0ed47bc0a87acbf97b34ff5efc166c0a2256664a34bacd09984f8a0fb
PDF
Publication page6f523206c93faccd15a65b7aa8d611f3fbfbfce78c2a1bf782027c92375a1f74
Manifest7e941f99b63dec0eadb5d0cc51517612844c403d2024c9d2f99bf95d4fd60036

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
SignaturedDO2TsY6hxLPTXW3YgcMBSlsN/zKpf1haqeSxgI+zGAeTXVJelcCBEcZTAruZhD+uuH1sX5kuFcxt9j0aWISCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:01:24.049504ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081292
observed 6f523206c93faccd15a65b7aa8d611f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.025898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081292/manifest.json
observed 7e941f99b63dec0eadb5d0cc51517612...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.007699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081292/publication.md
observed 00e300f0ed47bc0a87acbf97b34ff5ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:23.989902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081292/publication.txt
observed af25979609a96e495704612d8f129f05...
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.