OpenTechnical

OT-2026-000085328

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, 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-2026-000085328) never changes.

Identity and time

Publication numberOT-2026-000085328 · never reused
Internal UUID01a0ae99-aaaa-7926-92ba-5b8ed0e1baad · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085328
StatusPUBLIC

Content hashes

Canonical text5c813f2f577e416fe84a0fbc81f4c5471362c02b0b547b15a2fc475a45406c60
Markdown502fc190a11033466d25dac3ec4dc7feeb39d10888b826b2919c71f22a92c328
PDF
Publication page694b29b7e6c4f75a29ca19ba0b0bff1a41645410d82fc53bb1e6f91bd55134dc
Manifest453ba60a33a60a48eb4ef6d5009b5f95153ed5b6a028799707eab97c8befeb7e

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
SignaturerSjk64FMaypbw3NhXQyDt0VONhEZ5K59GPMfGIHhEnCSJK47/5KZIUNCCA7UhGqNZd1YyGTzOohaySPLr5JGBw==
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

2026-09-17T09:54:03.189022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085328
observed 694b29b7e6c4f75a29ca19ba0b0bff1a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:03.171581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085328/manifest.json
observed 453ba60a33a60a48eb4ef6d5009b5f95...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:03.152965ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085328/publication.md
observed 502fc190a11033466d25dac3ec4dc7fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:03.134966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085328/publication.txt
observed 5c813f2f577e416fe84a0fbc81f4c547...
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.