OpenTechnical

OT-2026-000090363

Publication integrity record

Three bellows cup vacuum gripper, three zone face, two 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-2026-000090363) never changes.

Identity and time

Publication numberOT-2026-000090363 · never reused
Internal UUID01a0ae9c-7f2d-7271-960b-3cf79e48c302 · 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-2026-000090363
StatusPUBLIC

Content hashes

Canonical text86082cbac13e0057986ca23abdf324b615567d31a5a5be56b0eb7eb6549f280f
Markdown56e71f674770ecbfad69c2ea3aa29bad26066a34852035d3f3c6d15778888cf4
PDF
Publication pagee9f1c4d832f55e6abce27d6f77fc0e4979e43e0bb48c1f3a68ae009a014bc4da
Manifest6656d0e7358ef6444b1b04ee066605d385d69dfaff19920f7d3d9c91f1ee44c5

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
SignaturekbI+uwG8Sf4fXD6m+eWBLSmYYtHglBjJGPyot2ldRPZT/3fb2y2nN0FBwFDJAuVPu2IXTFBWLrv+wCLw7HHKAg==
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

2026-09-17T09:44:27.839462ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090363
observed e9f1c4d832f55e6abce27d6f77fc0e49...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.821863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090363/manifest.json
observed 6656d0e7358ef6444b1b04ee066605d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.802816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090363/publication.md
observed 56e71f674770ecbfad69c2ea3aa29bad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:27.784057ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090363/publication.txt
observed 86082cbac13e0057986ca23abdf324b6...
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.