OpenTechnical

OT-2026-000020079

Publication integrity record

Four bellows cup vacuum gripper, four zone face, three stage ejector, pulsed blow-off before set-down

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-2026-000020079) never changes.

Identity and time

Publication numberOT-2026-000020079 · never reused
Internal UUID01a0ae6f-1fb8-7b7a-a15f-da2cec832cdb · 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-2026-000020079
StatusPUBLIC

Content hashes

Canonical textbaca73f1ec2cdeda9cb8b86429b898f7eab30fe57562f2818a98aea973f13d4a
Markdown3c8e1d09a07b9757dc775a2de19f6fdbda106da5f10d3c1e8ccb9df0bcdf2020
PDF
Publication page2a2e89d5d5b7ebf098b537b4a9c151f24331f13b4d54709be66ce777e0366ada
Manifest9499c75743b247adcea081e0149786b31962493d3aff60f42b561cef3ac80c52

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
Signaturef7Qn6lp16PxgU5S+lnch3YffsgGcy7I/dt7/+bz6LPWR72+08Yf4b19TOxY7EIxeR9b6kSTw4PTsRgDrA9pjDA==
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

2026-09-17T11:58:21.342389ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020079
observed 2a2e89d5d5b7ebf098b537b4a9c151f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.322720ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020079/manifest.json
observed 9499c75743b247adcea081e0149786b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.302836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020079/publication.md
observed 3c8e1d09a07b9757dc775a2de19f6fdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:21.283000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020079/publication.txt
observed baca73f1ec2cdeda9cb8b86429b898f7...
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.