OpenTechnical

OT-2026-000090235

Publication integrity record

Two bellows cup vacuum gripper, two zone face, single stage ejector, 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-2026-000090235) never changes.

Identity and time

Publication numberOT-2026-000090235 · never reused
Internal UUID01a0ae9c-428f-7559-81f8-4aea8c448fd8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090235
StatusPUBLIC

Content hashes

Canonical text4e4854f3ef1b3dc0fddb982b64179ba0a7d60deeeaeab243e01a8b01df375889
Markdown4266846653e915c54da7f3a27c9b46d9f8b6594573892ee4fcf755baf279ebb2
PDF
Publication page65a16eb344b0c0edbdefadac4b2892d67ea88998483e498ccf9d345e0975ed79
Manifest980cbaa4977267814d6557e327e859a86729141a7b42b2681271398730ac052d

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
Signaturei9RPadMSmGgWsJVLS0s8KpkOKgnBCXNz6Xh7BswyBil0y4N/bGJasP5PgxCjTsQatIQWikrGPeUJA5YRPfJBDQ==
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

2026-09-17T09:46:19.106358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090235
observed 65a16eb344b0c0edbdefadac4b2892d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.088589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090235/manifest.json
observed 980cbaa4977267814d6557e327e859a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.071409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090235/publication.md
observed 4266846653e915c54da7f3a27c9b46d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:19.052680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090235/publication.txt
observed 4e4854f3ef1b3dc0fddb982b64179ba0...
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.