OpenTechnical

OT-2026-000097800

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, pump 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-2026-000097800) never changes.

Identity and time

Publication numberOT-2026-000097800 · never reused
Internal UUID01a0aea1-92f6-7b5d-88a9-be2faec93ff9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:10:19.650679Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000097800
StatusPUBLIC

Content hashes

Canonical text14fe63b3eb330af79bc2571f6dae0bbc4901be313833af9448cea4fea379b6e0
Markdowndd25e81e75a763d68b3540d49597849e36e8a5ae552f2f4ca1d483d08d09f261
PDF
Publication page440c2268bdbccc859e45d33aad2e51ae2394d61513a17a1bbb1b91233bd1f196
Manifest642cae0f98b50772b35d8e76c84f54c61ad97adf156560e5bc6d9290e4d4090b

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
Signature+MeEuLbPO2+oi4swEyudBJOMGsPnXsL33CT3KGuyTDg2oTjpKJPs5OyE19TgMKILu+uISOJJPq6zbJsUsyV8Aw==
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

2026-09-17T09:32:53.101219ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097800
observed 440c2268bdbccc859e45d33aad2e51ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:32:53.081459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097800/manifest.json
observed 642cae0f98b50772b35d8e76c84f54c6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:32:53.062703ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097800/publication.md
observed dd25e81e75a763d68b3540d49597849e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:32:53.044478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000097800/publication.txt
observed 14fe63b3eb330af79bc2571f6dae0bbc...
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.