OpenTechnical

OT-2026-000091143

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000091143) never changes.

Identity and time

Publication numberOT-2026-000091143 · never reused
Internal UUID01a0ae9c-f16b-785b-8e03-ef2e52e58f7a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091143
StatusPUBLIC

Content hashes

Canonical text11676208eb36a56b2af21365a0543aec78ab63bf19ed34f080f4a7037b56445d
Markdown9218b56fd2394861a86026c93df0c05fbb01f4125def5158a7e617febaf8a84f
PDF
Publication pageebdc1baf647354d9987bfdacf3b7cdc3057c60b0b0b6e27dda69aa409f2e6801
Manifest2a7ea7d57c96c9e31d115e144650879cd57a49c8d111d2e2e72060b5d03220df

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
SignatureoIw3yMlE7TaVQ/aXkRlNnq5u4+sCOx8UrL2jExg7jkjpXYqmk2Zx4OsQ0I7X6k5UHGtQKH8qadtT6euQYaFoDg==
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

2026-09-17T09:43:18.082617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091143
observed ebdc1baf647354d9987bfdacf3b7cdc3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.065986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091143/manifest.json
observed 2a7ea7d57c96c9e31d115e144650879c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.047373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091143/publication.md
observed 9218b56fd2394861a86026c93df0c05f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:18.028233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091143/publication.txt
observed 11676208eb36a56b2af21365a0543aec...
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.