OpenTechnical

OT-2026-000103552

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, pulsed blow-off after 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-2026-000103552) never changes.

Identity and time

Publication numberOT-2026-000103552 · never reused
Internal UUID01a0aea4-e461-72e1-b21d-47d686dae32d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:13:57.105586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103552
StatusPUBLIC

Content hashes

Canonical text37435d309467c0feb43d0c75b8306f65de71f75e8af1c4f94757d5f4427f9295
Markdown29e5886c7a6d3d0155aff12ea0e8f742cfa0864e511d485408cd1f95279f2da5
PDF
Publication page99e1489cfb7486ad9442d995a00821e88bd153431e12671013b8858e6ac268e4
Manifest20186c0454d63d8d48cce73dd2f5618c5ca82067a1a10b80e6677b4bbec4055e

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
SignatureTKGWEAeSKE3N6DoQYRvgn7e5/HNWHe5CtUyEKSoEHzDD7o6rr0e/9G8F4OHfz8rJ4nGDlI+jGOIyVN0PPuiDDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:22:19.853781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103552
observed 99e1489cfb7486ad9442d995a00821e8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.837659ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103552/manifest.json
observed 20186c0454d63d8d48cce73dd2f5618c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.821108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103552/publication.md
observed 29e5886c7a6d3d0155aff12ea0e8f742...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:22:19.805537ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103552/publication.txt
observed 37435d309467c0feb43d0c75b8306f65...
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.