OpenTechnical

OT-2026-000012405

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump 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-2026-000012405) never changes.

Identity and time

Publication numberOT-2026-000012405 · never reused
Internal UUID01a0ae6d-39f6-7418-87aa-44b17c6b4beb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012405
StatusPUBLIC

Content hashes

Canonical text50354b465cfdd3ffd07a6a8091cf916f9670745d28f376aa89f2e89a00ca416d
Markdown43e996efd38b291b59b39e146ae76a246cd6e2f51b72c01cbcd8fe06ba3d57bc
PDF
Publication page5bde88053acdf8be398f27692e4d109ba4d44c2fdfa1fb38cdacc351e61c6c1a
Manifest03771f6d0bd0b331016563709d5b8b8ef00f7840443e74e9ef4aa568fa455c99

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
SignatureUlNME3HZ8P6KROShq9xJJBotpAvcg0/Iy2w4EwU7juOoFgwcqBXoAjA0Zhh3pxsJX8H/+Tun+Ge+j32tA+3dBQ==
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

2026-09-17T12:10:58.540106ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012405
observed 5bde88053acdf8be398f27692e4d109b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.520361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012405/manifest.json
observed 03771f6d0bd0b331016563709d5b8b8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.503727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012405/publication.md
observed 43e996efd38b291b59b39e146ae76a24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:58.484895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012405/publication.txt
observed 50354b465cfdd3ffd07a6a8091cf916f...
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.