OpenTechnical

OT-2026-000087933

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, supply line 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-2026-000087933) never changes.

Identity and time

Publication numberOT-2026-000087933 · never reused
Internal UUID01a0ae9b-1aa6-71de-8e93-c9cd35848e1b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087933
StatusPUBLIC

Content hashes

Canonical text74671c26f0ac38ad93e958d0cc79a2f4eb7c82c3ba97d12273756aa90337e8f3
Markdown46dda202d557473c7f8ce37c52994dd630eaa5750af0d0b9e60f651fd437cac1
PDF
Publication page1201359e4e31c8bb90cd01e6a16cbf1b11da5c3f82065cdd7af270947e06906b
Manifest17aa8731ac70b5995aedb2d1eeca5e5cafa3c9c1158973dfc4d518d8830ffe05

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
SignaturessekewmDY1A4RouvL+u8wEJvpSELaeJgGbhMdcBIxprrWUEYdSvz3e5A+2FIgyKcF7EYmkTkc3NTlvDFx0xMAg==
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

2026-09-17T09:49:13.543525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087933
observed 1201359e4e31c8bb90cd01e6a16cbf1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:13.525681ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087933/manifest.json
observed 17aa8731ac70b5995aedb2d1eeca5e5c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:13.506686ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087933/publication.md
observed 46dda202d557473c7f8ce37c52994dd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:13.488460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087933/publication.txt
observed 74671c26f0ac38ad93e958d0cc79a2f4...
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.