OpenTechnical

OT-2026-000072455

Publication integrity record

Three cup vacuum gripper, three zone face, three outlet manifold, pump fed, supply line pressure sensor, 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-2026-000072455) never changes.

Identity and time

Publication numberOT-2026-000072455 · never reused
Internal UUID01a0ae92-89d8-7f50-ad71-6b66869c306f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072455
StatusPUBLIC

Content hashes

Canonical text21aa1fd91939a38a947e2cf4b06e33bf74d1859708822f74a8f23da82e704d11
Markdownbf197746fd31cd2b500214a605c7d3538877c1a9e1ffbd102357a8136894b886
PDF
Publication pagef1f5f75cc5a43a8193ec7ac34ac73493396433785ac505a282344cf383bf0eba
Manifest00f05917fca98ccba585df75785b3be446823a1f6479d82225b8933f29385a70

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
SignatureKta26e2J0eeZUkCbojfnF5OAc4OEfGGUt/VHe6+Hy7b5Q5oIcCoW0tlIPXF9/NpwMEP36uQV3mk6nIvdB6MrAw==
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

2026-09-17T10:22:16.521081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072455
observed f1f5f75cc5a43a8193ec7ac34ac73493...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.503677ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072455/manifest.json
observed 00f05917fca98ccba585df75785b3be4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.485427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072455/publication.md
observed bf197746fd31cd2b500214a605c7d353...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.467441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072455/publication.txt
observed 21aa1fd91939a38a947e2cf4b06e33bf...
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.