OpenTechnical

OT-2026-000050689

Publication integrity record

Six cup vacuum gripper, six outlet manifold, plant vacuum fed, vented 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-2026-000050689) never changes.

Identity and time

Publication numberOT-2026-000050689 · never reused
Internal UUID01a0ae82-c7b0-7a89-9ad8-c34c2408cf4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:36:41.548889Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000050689
StatusPUBLIC

Content hashes

Canonical textdc37dbde2fe9170e2cbd30bde2c9257e94bd7447990e86de30d557a88f3e5e15
Markdownd853b9d8c50d5ea694773ad2074b3378523b20d8579f5235838689ec535fb921
PDF
Publication paged771403539fde8d20cd5dacf572ca055728ed039c603c169ac8cc3f8fd91cf8b
Manifest664fd9dfdda179a1b376ee4b617e61e626c7ec6c7a46b77250ac4ff8e256df44

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
SignatureWKSCFMkae8VvNGbU/VYjRYW9aLWQls4qLTXZ9U+JK1s8KSKXBUC7pM498XbQfG9XOLiQXR8R8SvwkJM4BGDgAQ==
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

2026-09-17T10:59:23.982770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050689
observed d771403539fde8d20cd5dacf572ca055...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:23.964544ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050689/manifest.json
observed 664fd9dfdda179a1b376ee4b617e61e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:23.944902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050689/publication.md
observed d853b9d8c50d5ea694773ad2074b3378...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:23.924454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000050689/publication.txt
observed dc37dbde2fe9170e2cbd30bde2c9257e...
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.