OpenTechnical

OT-2026-000030413

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000030413) never changes.

Identity and time

Publication numberOT-2026-000030413 · never reused
Internal UUID01a0ae73-e503-7ce0-acaa-00f0878cd061 · 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-2026-000030413
StatusPUBLIC

Content hashes

Canonical text57006b796bc3a5ca88728f0a72c37b6abc7c3a7c8704f7af9bef1a777dad0005
Markdown5bce7121c8eda2b7462e32ad1b52d71f5539917aa7f6b50ad8c814c52150c3ce
PDF
Publication page717779a7edf7d1b4a394188116a8ebb08387e2ca2e919e2ce7cbddc9ca18fbfe
Manifest80598b265492d7fdaf64d1112470bd01da14aa64ed5bf7aec4dc1f78670e2187

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
SignaturezhZ38asyxJAUzH7I4CmcvrKORsXVfCIGZ9m0iGmaIivTpqnEaEfMlB1/S20on1r6cZly+JLVegPRsfFpx1IcBg==
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

2026-09-17T11:38:08.780381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030413
observed 717779a7edf7d1b4a394188116a8ebb0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:08.763534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030413/manifest.json
observed 80598b265492d7fdaf64d1112470bd01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:08.746472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030413/publication.md
observed 5bce7121c8eda2b7462e32ad1b52d71f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:38:08.730031ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000030413/publication.txt
observed 57006b796bc3a5ca88728f0a72c37b6a...
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.