OpenTechnical

OT-2026-000019763

Publication integrity record

Three bellows cup vacuum gripper, three zone face, plant vacuum fed, 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-2026-000019763) never changes.

Identity and time

Publication numberOT-2026-000019763 · never reused
Internal UUID01a0ae6f-1fb4-7055-a326-0fddac9962b7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019763
StatusPUBLIC

Content hashes

Canonical text00654b312e294d45e6f2ff8ff0370c4c59705df3ca23ecea8b9f926388ce6df3
Markdown32508697f90a3e53717166ce8eb5e36ac940a5db5af106e934c5baa2d179968e
PDF
Publication page5cb061f01e478665ed5afdb10336e714fbbf1e9d9eced7e0489fa61910fb3646
Manifestb6175d29ba3a17eb15df5c6f60b595d52e7363c4da0cc7ec949395ede8247555

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
SignatureDLzfuWxX5HO56tS3Qqww4jcteuk8s9ESrmRO/rG6bXmdvpdlhzCrhD1K8qIbHfG9tgYodaiO8vT0W6eSwoTCBg==
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

2026-09-17T11:57:51.908338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019763
observed 5cb061f01e478665ed5afdb10336e714...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.889607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019763/manifest.json
observed b6175d29ba3a17eb15df5c6f60b595d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.870773ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019763/publication.md
observed 32508697f90a3e53717166ce8eb5e36a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:51.852528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019763/publication.txt
observed 00654b312e294d45e6f2ff8ff0370c4c...
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.