OpenTechnical

OT-2026-000028663

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, pulsed 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-2026-000028663) never changes.

Identity and time

Publication numberOT-2026-000028663 · never reused
Internal UUID01a0ae72-e2f9-70d7-be7f-ad85dda91883 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028663
StatusPUBLIC

Content hashes

Canonical texteda45082cac57f43a8e8a26a0fafd6c3f7a4fdf36fb591901ae5f74336ff6466
Markdown5c42cdf0c7fdcabcd8ff6ecfac878f29d2aff8100aa41eeca7b1d0385932c8a7
PDF
Publication pagebcc56a793dd06dc6efbd275debfca351b6c1b5836d51da3cfbdf612c39af0eba
Manifestfbc8c4de38d09d44d91b14759af677ca2034bf7244d56e8a05fdef757c53781b

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
SignatureuqB185rPpi4QSsy7xlEtkULT5RFMDzBysmQHVWBRGhc8FzuCGA7mGt+P8fa8gbB7KtUVBGsygVpziNXhhZv/BA==
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

2026-09-17T11:41:32.653340ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028663
observed bcc56a793dd06dc6efbd275debfca351...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.634360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028663/manifest.json
observed fbc8c4de38d09d44d91b14759af677ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.614028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028663/publication.md
observed 5c42cdf0c7fdcabcd8ff6ecfac878f29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.591677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028663/publication.txt
observed eda45082cac57f43a8e8a26a0fafd6c3...
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.