OpenTechnical

OT-2026-000048931

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, pump fed, pressure sensor per zone, pulsed 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-2026-000048931) never changes.

Identity and time

Publication numberOT-2026-000048931 · never reused
Internal UUID01a0ae81-134b-7636-a60f-dacf6459605a · 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-2026-000048931
StatusPUBLIC

Content hashes

Canonical text076109d5af5d410aa8319b111d4149fa449d123f32301d79b30e2a995e29d75b
Markdownfa0cb5bae5f8d63c1c36355cc53dace7e3e8e16c957b8e03e3806aeea6d7224c
PDF
Publication page7dd4d144df05cc114db7ef52c49385b7690aa9c739d5ee5d72aeff5a18ac851b
Manifestf9a5c988a534ba2f7e7767041cb1e3291954ffae220ebb3b07c8075f81e92597

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
Signature/CsZ2P6l7rwpTmI0v53vbSolD135NyvMXGj7/xLyh38IR3PNXKr+4EvFk4SjNQHc5rbfW4le42DZsqcHI3MWAw==
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

2026-09-17T11:03:06.694230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048931
observed 7dd4d144df05cc114db7ef52c49385b7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:06.675380ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048931/manifest.json
observed f9a5c988a534ba2f7e7767041cb1e329...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:06.657052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048931/publication.md
observed fa0cb5bae5f8d63c1c36355cc53dace7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:03:06.638059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048931/publication.txt
observed 076109d5af5d410aa8319b111d4149fa...
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.