OpenTechnical

OT-2026-000048941

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000048941) never changes.

Identity and time

Publication numberOT-2026-000048941 · never reused
Internal UUID01a0ae81-134b-7846-875f-d67fe6ad9500 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:34:49.967260Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048941
StatusPUBLIC

Content hashes

Canonical text1223c1d964a0eadcf0b433aefd7c007c1a5f27a3a71f5b0a1c88610f8c5038cb
Markdown1d3ad040240e5c6f413d11e9487abb997d395aef185336a31dbd09722d1e253c
PDF
Publication pagee241378c6a9ae741178710ac580435791ca30a462204cdd7da9ec313a1d14989
Manifestc0fb8f8eb6c2379c1922802897b3901011f743a0881e640f4fe72cb4c1cb4b78

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
SignatureWBwx/wxq0m2OGQce610WIpJ017jCymJjr0w6YDvGSdpHeOZJu6rOrD6p0/DvKsGCFdRAjlvYjhcPxqZgbiZGDw==
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

2026-09-17T11:03:07.525017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048941
observed e241378c6a9ae741178710ac58043579...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:07.504003ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048941/manifest.json
observed c0fb8f8eb6c2379c1922802897b39010...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:07.480745ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048941/publication.md
observed 1d3ad040240e5c6f413d11e9487abb99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:07.461156ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048941/publication.txt
observed 1223c1d964a0eadcf0b433aefd7c007c...
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.