OpenTechnical

OT-2026-000041933

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000041933) never changes.

Identity and time

Publication numberOT-2026-000041933 · never reused
Internal UUID01a0ae79-e8a6-7409-8663-b33c5d2af7a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041933
StatusPUBLIC

Content hashes

Canonical textc823caaa56af08ba869893953eb76950fed9582ea0423def1eff8f41d6d87d46
Markdownab9a1849293ef50158691a00666607fff8beefbe83687bda40618e280475adca
PDF
Publication page379d0084a7803cf3fe61de42daf1bc894eab7f94f380b8c47bafb59c77ac70bc
Manifest078ec000f11d24ba041cace9028d9f419650d8c47c06c3a50db720b5ed243b58

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++szgsm/leiC0jNp38Gl3Xcp4uqyjlwkpr5sa//MTQLOHXVzlFg48WnDGgqAk2uRQz0LduGg2I8ajJAIw1hBAw==
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

2026-09-17T11:16:49.256331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041933
observed 379d0084a7803cf3fe61de42daf1bc89...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:49.239730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041933/manifest.json
observed 078ec000f11d24ba041cace9028d9f41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:49.221485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041933/publication.md
observed ab9a1849293ef50158691a00666607ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:49.204442ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041933/publication.txt
observed c823caaa56af08ba869893953eb76950...
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.