OpenTechnical

OT-2026-000066603

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, pulsed 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-2026-000066603) never changes.

Identity and time

Publication numberOT-2026-000066603 · never reused
Internal UUID01a0ae8e-ce41-78aa-82ef-006a3dee5f56 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:49:49.649149Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000066603
StatusPUBLIC

Content hashes

Canonical textbc6ad01d35f67cdc2bc3ab5d30420e92751535627e149dbeb4bfdda06b7eba83
Markdowne616dfa730242996d57fc418caf236b2a41779b9ebe2e1c02103d301cd235322
PDF
Publication page4908497dc44e7bf3b938f6e6f507d0ca084837c2c4622e26221de99185b62f7c
Manifest420e2e71f3f1caaec38815ad63594f23600bda9e7c788e3d05e5d2320ba8d347

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
SignatureA3gf5VS5ayKZudFYRr3goTnhlt1oRgjkkRudLLdK22NueHGixGRUGX8gDz1xLdwM7QUgMK/tkXM9JjUk2i+PDA==
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

2026-09-17T10:32:58.513125ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066603
observed 4908497dc44e7bf3b938f6e6f507d0ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:58.495512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066603/manifest.json
observed 420e2e71f3f1caaec38815ad63594f23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:58.476977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066603/publication.md
observed e616dfa730242996d57fc418caf236b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:58.460492ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000066603/publication.txt
observed bc6ad01d35f67cdc2bc3ab5d30420e92...
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.