OpenTechnical

OT-2026-000012961

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off 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-2026-000012961) never changes.

Identity and time

Publication numberOT-2026-000012961 · never reused
Internal UUID01a0ae6d-5564-7a98-bc35-f3821e089900 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012961
StatusPUBLIC

Content hashes

Canonical textb99b6a71fec927fe08e78e0eef9a27983940e496d4ef443cb7d2e370a2bc62c6
Markdown676cfee2b58c5fc314deea4539957e52cc358f2ce9eda70c8aa02b94d7354978
PDF
Publication pagebb3684e37661fcf392ba75e0b0c65322c1fcd8a855419de09488c9ad44a3d8f6
Manifest02b453786dcde6a07741cb5af6ac6980c98d602360828452d4160c2e05d70bc6

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
SignaturenXLZ+jwKbPcLmlR5RVevmbjrNbbl+7zguH+n7Tbt5R+5YG4sWKqTqkhBJ3uQvEaR/mc1L8guSDTOBKacuQmqDQ==
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

2026-09-17T12:10:46.226025ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012961
observed bb3684e37661fcf392ba75e0b0c65322...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:46.202990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012961/manifest.json
observed 02b453786dcde6a07741cb5af6ac6980...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:46.181579ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012961/publication.md
observed 676cfee2b58c5fc314deea4539957e52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:46.162065ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012961/publication.txt
observed b99b6a71fec927fe08e78e0eef9a2798...
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.