OpenTechnical

OT-2026-000019357

Publication integrity record

Single cup vacuum gripper, three stage ejector, supply line pressure sensor, pulsed 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-2026-000019357) never changes.

Identity and time

Publication numberOT-2026-000019357 · never reused
Internal UUID01a0ae6e-f392-7fac-9f49-1d432404f3e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019357
StatusPUBLIC

Content hashes

Canonical textd98d2cdb4c738e56c917378b3740cc502fa86d814bb3737edebac2a778f6204a
Markdown87c3f35f34191cfdebcec21d72327d0b6fe0d38aff6291412ff8549aab74d304
PDF
Publication page8cae16e5f22aa147b26034cfc45a769f51a3ab1f28c3de45ff39e716d42ee9bc
Manifestdd540a735da9d5b670f2ef41467e41ed64a44c3a18ac1c5379571e66a534b8b1

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
SignaturecVESDQcehthY7+0Y0lgMcz6XM4B5BvdhZKwFWTcMoLr7AN99vb+5Dh5jiyPhj2FH+TsgAjMmhI9JKsPMC7vpBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:58:44.014118ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019357
observed 8cae16e5f22aa147b26034cfc45a769f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:43.996023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019357/manifest.json
observed dd540a735da9d5b670f2ef41467e41ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:43.977966ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019357/publication.md
observed 87c3f35f34191cfdebcec21d72327d0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:43.958567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019357/publication.txt
observed d98d2cdb4c738e56c917378b3740cc50...
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.