OpenTechnical

OT-2026-000004946

Publication integrity record

Porous face vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, pressure verified

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-2026-000004946) never changes.

Identity and time

Publication numberOT-2026-000004946 · never reused
Internal UUID01a0a928-bad7-734b-98e1-f7f39d850d5d · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:40:13.914575Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004946
StatusPUBLIC

Content hashes

Canonical text24a8117c05107d178af9de766412a9975da3a811aa9d8e1d0b6fd24b3ac36856
Markdown2dc8fa8e7530b0ad8f74772947a7e2c05d66d5a10a913a9fefef6142f40759f2
PDF
Publication pageae5a1de99f38810132e64ae76cb53004c5d6a6f41169c80bfd3c0ab584335554
Manifestbaf1d5cb1cb5740aa6ec3a6d49f80206302bf463dca42bf4ff32545d5ee0133b

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
SignatureoPyzjxmsIEaDxLhUWV9AtWwbMe5OQNEfJTjrF1xT88uq1a/dA3fCG7tSgHe0U8paEVfY+M/rmc0IX9sPM9H3AQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:50:32.219460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004946
observed ae5a1de99f38810132e64ae76cb53004...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.207719ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004946/manifest.json
observed baf1d5cb1cb5740aa6ec3a6d49f80206...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.193921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004946/publication.md
observed 2dc8fa8e7530b0ad8f74772947a7e2c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:50:32.177946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004946/publication.txt
observed 24a8117c05107d178af9de766412a997...
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.