OpenTechnical

OT-2026-000090313

Publication integrity record

Two cup vacuum gripper, two zone face, 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-2026-000090313) never changes.

Identity and time

Publication numberOT-2026-000090313 · never reused
Internal UUID01a0ae9c-7f2c-7d4c-97e9-215311646f80 · 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-2026-000090313
StatusPUBLIC

Content hashes

Canonical text65130e2d35cf3ac0e5f9d1af8f9b590a937f2e1dd5fdf9366f9c53fc9befb99f
Markdown0bdc2c3d3802d28f8805f221e74ae3df83a5ad8dc2f1bdb50a738de680e39400
PDF
Publication page8d9e3167f2b1a941245e44abbdd5cc9b78ea7e2e72e8f244c489682dac670fa9
Manifest5f44e58e2b38fdab158a0bd1f51646b4fbeb349169133ebbd24aa17cecbb86ca

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
SignatureeywtDkTRiz0gBNgQWnDN5j2XPOiX2RWPMhV37nDfwra6N8hEkUI5THU3WTI417gQGEyMTadYNR9TAYmphKsOAw==
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

2026-09-17T09:44:23.889807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090313
observed 8d9e3167f2b1a941245e44abbdd5cc9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.870849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090313/manifest.json
observed 5f44e58e2b38fdab158a0bd1f51646b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.852916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090313/publication.md
observed 0bdc2c3d3802d28f8805f221e74ae3df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:23.833942ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090313/publication.txt
observed 65130e2d35cf3ac0e5f9d1af8f9b590a...
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.