OpenTechnical

OT-2026-000028637

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, 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-2026-000028637) never changes.

Identity and time

Publication numberOT-2026-000028637 · never reused
Internal UUID01a0ae72-e2f9-795c-8df1-11a6dcb95a31 · 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-2026-000028637
StatusPUBLIC

Content hashes

Canonical text55cde21b9ed07a82b755772ef614a4d6448285fd49b472efbd543051b14df97f
Markdownda3cd42afe6c6b7a6c3c231af095c37f35bb7aafb09913bb3782654106f7c4a9
PDF
Publication page5c86697320bed84218da786905fd236223a27b7ee5f330713dd6ba1fb2836ba4
Manifest6d3a53d7071d86dca53f08ed02752b9f6b7144a23131bebf084e21e9a0ac299e

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
SignatureEgcDhNNj8vEKtG3E1p5hw//vNwFi9SoraOwZcnPElDLBDteO9kCrwF4Okd+3ATSkMGNnwMbp2e5OJi9hfJh0AA==
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

2026-09-17T11:41:30.458380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028637
observed 5c86697320bed84218da786905fd2362...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.439393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028637/manifest.json
observed 6d3a53d7071d86dca53f08ed02752b9f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.420859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028637/publication.md
observed da3cd42afe6c6b7a6c3c231af095c37f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:30.401035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028637/publication.txt
observed 55cde21b9ed07a82b755772ef614a4d6...
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.