OpenTechnical

OT-2026-000030309

Publication integrity record

Six cup vacuum gripper, six outlet manifold, pump fed, manifold pressure sensor, 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-2026-000030309) never changes.

Identity and time

Publication numberOT-2026-000030309 · never reused
Internal UUID01a0ae73-e501-7eff-97cd-62a527e3ffb3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:20:26.007257Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000030309
StatusPUBLIC

Content hashes

Canonical textbb4ea5d4b40e750e1a309123d5017d21d5c6f1fa4707530876739f5a5f9c5d3f
Markdown67e160f2dce6ab66cde31376d332f90c245add1644fc4a29fdbe666cbda86818
PDF
Publication pageb7d542e300edad9a5b52308dfd8d50af5052195782d09045c03aede70dee51c3
Manifestb0e772a0a9682e7df1904baba566502f06cb64d6df1d58738864b76a872d887a

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
SignatureBL4LlyySHx52U7A+79rkTYvUO8ljQ+bPuZz4qrKz1rIYpNH+roCiw0Z9gEiYGY+H9Vj92vQ33QVrrxq6nT7HAg==
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

2026-09-17T11:38:00.725585ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030309
observed b7d542e300edad9a5b52308dfd8d50af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:00.706355ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030309/manifest.json
observed b0e772a0a9682e7df1904baba566502f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:00.689412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030309/publication.md
observed 67e160f2dce6ab66cde31376d332f90c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:00.670679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030309/publication.txt
observed bb4ea5d4b40e750e1a309123d5017d21...
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.