OpenTechnical

OT-2026-000089472

Publication integrity record

Foam pad vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000089472) never changes.

Identity and time

Publication numberOT-2026-000089472 · never reused
Internal UUID01a0ae9b-db02-7063-9de0-286049b4ac57 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:04.880043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089472
StatusPUBLIC

Content hashes

Canonical text770fc3a0dc47c76647e522c720371151e940a21945aee6104c534eddbfd898fe
Markdown8a586bdb0db50119453d9810ed8c0844c4af4687e15d3fd47d552a20f9708a57
PDF
Publication page13938b825b142a3a2490ee767a1098b638285ce0bc4c62054e29810f4eee4c4b
Manifested9aed2570ace6b84ce34a3a4bf89e8e23e182ba63ff4f53a7ae427bf902ea6d

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
SignatureJP9Wdx3+2bKx0VIDBeXuXyiMRNBR0ko8gAHYEEIIDPlbP7YOQ3+lVM4ZBdzqdk5BrN322tlmks+ghSXxDfg9DQ==
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

2026-09-17T09:47:37.287729ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089472
observed 13938b825b142a3a2490ee767a1098b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.270127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089472/manifest.json
observed ed9aed2570ace6b84ce34a3a4bf89e8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.252537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089472/publication.md
observed 8a586bdb0db50119453d9810ed8c0844...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:47:37.236152ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089472/publication.txt
observed 770fc3a0dc47c76647e522c720371151...
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.