OpenTechnical

OT-2026-000090946

Publication integrity record

Two bellows cup vacuum gripper, two zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000090946) never changes.

Identity and time

Publication numberOT-2026-000090946 · never reused
Internal UUID01a0ae9c-c011-71bf-b22e-3fc857ec73ba · 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-2026-000090946
StatusPUBLIC

Content hashes

Canonical text974be185c11ed374419e43f567fb32f278866637374cffd74608dcfdc1a14e3d
Markdown177ca86ba8c893d4224f441b96023a998b1c61b2fea71b0a7efe6feab3d94cab
PDF
Publication page42f3c8ccca1844e54c825469bcf93cf56276f7a387bc8776e4b385f590215af7
Manifestbae0c61156b8a970693d23b523e5b9a47d83c5d531fa3de9210e82a4eb11f401

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
Signature2C0uio5Dkll0gxmv/xAO8VIQjp5xFYfA45ynpBJ2MIhbToN+Cn75CUA8XKoNwlncjBqWXws7jC8AvrcCg4hwBA==
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

2026-09-17T09:44:09.930386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090946
observed 42f3c8ccca1844e54c825469bcf93cf5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.913792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090946/manifest.json
observed bae0c61156b8a970693d23b523e5b9a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.896304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090946/publication.md
observed 177ca86ba8c893d4224f441b96023a99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:09.879312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090946/publication.txt
observed 974be185c11ed374419e43f567fb32f2...
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.