OpenTechnical

OT-2026-000090654

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, single stage ejector, 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-2026-000090654) never changes.

Identity and time

Publication numberOT-2026-000090654 · never reused
Internal UUID01a0ae9c-7f30-73eb-9408-044b36d19879 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090654
StatusPUBLIC

Content hashes

Canonical text71027e2c21d93b52e8a6d38de39afebd9e09a8c5837a8e48ba26daa19669ba44
Markdown2a8ebdb80c76347329c1ea4605ccee97235d49748059a2cb2b7397b6d26a3273
PDF
Publication pagea0df67d0bf181ad72c02b846725897adafccb5d165afbfc2311b76928ff669c6
Manifest6756e193232ce18e051081b31c3f37b882f9bcda8ed17a4a7d0d585bf4846ac6

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
SignatureHOPycMKgnNdkJB7/PLNBn7HRIVqli/RDOfqhmbad3dcZmd0e3Cn5IL0LVhcdZrthQ6iVZxCiCN96diuLLb1iDg==
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

2026-09-17T09:44:50.680076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090654
observed a0df67d0bf181ad72c02b846725897ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.662512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090654/manifest.json
observed 6756e193232ce18e051081b31c3f37b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.643085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090654/publication.md
observed 2a8ebdb80c76347329c1ea4605ccee97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:50.625508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090654/publication.txt
observed 71027e2c21d93b52e8a6d38de39afebd...
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.