OpenTechnical

OT-2026-000090837

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, 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-2026-000090837) never changes.

Identity and time

Publication numberOT-2026-000090837 · never reused
Internal UUID01a0ae9c-c010-7083-a667-00756643a50c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090837
StatusPUBLIC

Content hashes

Canonical text5c2a4e4f87aae13aad7da055b0c6fc1b8ac76a67cf49f7668ed4a1f9c5b91ffa
Markdown685ed748edbeb71a725a8f13d075c9e6f8936d0f55171b6e807c09b160df8ea4
PDF
Publication pagef23b76098359a2361de361f5966637129b8b40d57c03cf26f175bb7a35f2fa79
Manifestab4f31df69d1e2c2263dcb798066a11e9df136d1dcb83de257dc831fc19cd6fd

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
SignaturenxJRHtwGFFfr0fezo5onNetumbNCOuPiwvCWzdYpQDZbzROcN0axtN2Ys62yQTFuTMieonHidVmMNzh4jaMUCw==
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

2026-09-17T09:43:53.026186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090837
observed f23b76098359a2361de361f596663712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:53.008563ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090837/manifest.json
observed ab4f31df69d1e2c2263dcb798066a11e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:52.960120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090837/publication.md
observed 685ed748edbeb71a725a8f13d075c9e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:52.915116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090837/publication.txt
observed 5c2a4e4f87aae13aad7da055b0c6fc1b...
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.