OpenTechnical

OT-2026-000043897

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000043897) never changes.

Identity and time

Publication numberOT-2026-000043897 · never reused
Internal UUID01a0ae7b-d678-70b6-98e8-a1f86f6358da · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043897
StatusPUBLIC

Content hashes

Canonical text548a8eefd27dce9a22727ac402f77bd763e8cffa1e3481d68476b35eccb8b0ca
Markdown6c0b537317393fb0cf95fdf73fa9d487811d616cc357c7304bc2cc5b5c041b56
PDF
Publication pagecb7cb97535611367a4646cbdb4cb567d05d0291a8fd4750b3690a52ce2681765
Manifest68c1acd0f02cc4adec6c9c5184cc92980d0a2798089950e13124c4513e91e9d2

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
SignatureZE+puCBw6MqGVNQDOxPp2kKVEzH9Ht3zJLN+A6e6QAPxHFdxuqW155AG/4gHAX0iUZOYQrChkG/fTY1BcD97Aw==
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

2026-09-17T11:12:13.960654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043897
observed cb7cb97535611367a4646cbdb4cb567d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:13.941749ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043897/manifest.json
observed 68c1acd0f02cc4adec6c9c5184cc9298...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:13.921783ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043897/publication.md
observed 6c0b537317393fb0cf95fdf73fa9d487...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:13.901234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043897/publication.txt
observed 548a8eefd27dce9a22727ac402f77bd7...
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.