OpenTechnical

OT-2026-000027357

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, sustained 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-2026-000027357) never changes.

Identity and time

Publication numberOT-2026-000027357 · never reused
Internal UUID01a0ae72-6997-7b0d-bf55-479d6db0c87d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:48.928538Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027357
StatusPUBLIC

Content hashes

Canonical textc32828dcc9636334be43cfb4517f2e74639a979f3031d9df55c7bc4689931294
Markdownd128cea3ff6b2dc6128ea8ce5e384af6dfe83236d39b95729db0c5fac1b5814d
PDF
Publication page6aa03bc50eca12443a9b9f27e7564ff880b7274c730d0580a39a2b40670b3599
Manifest784fcdc824d982a50b0e40505878ea6ccc4893efbd8b742b527dd990cd8a883e

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
SignatureZ6W8BsofJYnwdVNUvRYEHbHnK8Ei5AHQbSuB4N/lVMqlUOScU9gY8HalC0NHUqGaQ7BKEliSmimMGchJIP0RBw==
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

2026-09-17T11:42:46.084019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027357
observed 6aa03bc50eca12443a9b9f27e7564ff8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:46.068687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027357/manifest.json
observed 784fcdc824d982a50b0e40505878ea6c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:46.052053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027357/publication.md
observed d128cea3ff6b2dc6128ea8ce5e384af6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:46.035610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027357/publication.txt
observed c32828dcc9636334be43cfb4517f2e74...
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.