OpenTechnical

OT-2026-000013778

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000013778) never changes.

Identity and time

Publication numberOT-2026-000013778 · never reused
Internal UUID01a0ae6d-8de9-7b94-9b92-0166a1ad3eec · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013778
StatusPUBLIC

Content hashes

Canonical text834b66e5e6b15bf1854253669d38cc028d7bf9503d366ede45beb681758919ae
Markdown31854f8a90d4b05c1c299c0bfa67a1e7646bd75cd9acb6d5b1b6559b09e7aaa9
PDF
Publication pagec1b0aa88fe246be4ccc16db5bd84d42c11ebcaf7f01d8a450e81fdad4dec5692
Manifestba12b8eb7fc05bdd2f952b27385c689eac54ca4350ae1e6ce63f8336f97437ba

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
Signature3SfJQe+Kfn81PHiOw5c9DzLe3Wu8mWevN/c7vnd3D5Wvix0gKN+Zgpfd6MP/IJt5UEiOFNQxcc+M0OY32ibQDw==
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

2026-09-17T12:08:51.696807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013778
observed c1b0aa88fe246be4ccc16db5bd84d42c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:51.676089ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013778/manifest.json
observed ba12b8eb7fc05bdd2f952b27385c689e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:51.656222ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013778/publication.md
observed 31854f8a90d4b05c1c299c0bfa67a1e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:51.635477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013778/publication.txt
observed 834b66e5e6b15bf1854253669d38cc02...
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.