OpenTechnical

OT-2026-000008136

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, vented 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-2026-000008136) never changes.

Identity and time

Publication numberOT-2026-000008136 · never reused
Internal UUID01a0ae6a-908c-7e9b-aac6-41ffc26c9fa6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008136
StatusPUBLIC

Content hashes

Canonical text7f8980e21f370a287e442af149ec6c37aae0e7ffce0ea54a715c8cab6eab0694
Markdown368ee83c625ad76c6ea37e246da8c9c27a23218b8f89f2306a684f94b571c3b7
PDF
Publication page8803fd77554463769bf569c0bbd73c9607f281fb8bbec064d3f152101b461f03
Manifest8c2bcb3f6308e25538d926ff6b5a9da35e675037e4d38019e0ff1aeb854da41c

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
SignatureMUvWLST7cl9ZMzSeHR3RqsVOyIsC34tIDfAs6oX3S+QBUBaoSco9Kc9MCfT64PU5dZteAs5UOXwZr4DE0onmCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:20:27.720925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008136
observed 8803fd77554463769bf569c0bbd73c96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:27.701445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008136/manifest.json
observed 8c2bcb3f6308e25538d926ff6b5a9da3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:27.685325ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008136/publication.md
observed 368ee83c625ad76c6ea37e246da8c9c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:27.663268ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008136/publication.txt
observed 7f8980e21f370a287e442af149ec6c37...
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.