OpenTechnical

OT-2026-000009079

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, 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-2026-000009079) never changes.

Identity and time

Publication numberOT-2026-000009079 · never reused
Internal UUID01a0ae6b-31b8-7949-96da-cc0b1cfcfba8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:55.823363Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000009079
StatusPUBLIC

Content hashes

Canonical text7fb23b1608109b52f3f1bd3cb010c92310e4b284db7cc06db6c53f1351f72a53
Markdownad9d7722ad4118179bf0151e4f6617d7a04ec8038b7509d3b24ce1f0d5945f74
PDF
Publication pagee77bd2360b36ef3d2309c3155aaf1af09aef1b5f79609c4d237de552a882dce1
Manifest2aa0e7898a37faa3bb3ea9caba91a1f2d690d2cc9dbd7539e81ac053f45e62c6

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
Signature1mD7BDCrc5EsRivG1x6Svqmmm0sMX59k9rbmJK95UM52hbXoCRz/bctDB05azQNoX1JnZVDTFqZ9ZKIZJDIGAg==
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

2026-09-17T12:17:44.902903ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009079
observed e77bd2360b36ef3d2309c3155aaf1af0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:44.883187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009079/manifest.json
observed 2aa0e7898a37faa3bb3ea9caba91a1f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:44.861338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009079/publication.md
observed ad9d7722ad4118179bf0151e4f6617d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:44.840604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000009079/publication.txt
observed 7fb23b1608109b52f3f1bd3cb010c923...
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.