OpenTechnical

OT-2026-000019688

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, three stage ejector, manifold pressure sensor, 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-2026-000019688) never changes.

Identity and time

Publication numberOT-2026-000019688 · never reused
Internal UUID01a0ae6f-1fb3-7803-adde-9f18c427909d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:13.354643Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019688
StatusPUBLIC

Content hashes

Canonical text5213ea6585571ab8b9d77a26d213e4c704518e2de5ab16c967285c3f2b3cc0ad
Markdown8543b42736bdbcd39541abbf7ec408a27d7ce48c7b1734b40f44345bbfdf0761
PDF
Publication page37c67174f2495c1019a20cf9ca6c41efc9e859bea3ad662a22dc1d5732016182
Manifestaab096df24159e91bdb37d71ea1277688997b679fde66dfb471b3d94210fa582

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
Signaturenq1lvhA6vixe8xtbTfQsW6/bdaj2a8i3YwRbfkIzz6t3n+RITGhBlHh/ojhholVdXeWl39xI+IZZLn+Ten/uAA==
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

2026-09-17T11:57:45.934555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019688
observed 37c67174f2495c1019a20cf9ca6c41ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:45.914632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019688/manifest.json
observed aab096df24159e91bdb37d71ea127768...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:45.896274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019688/publication.md
observed 8543b42736bdbcd39541abbf7ec408a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:57:45.878744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019688/publication.txt
observed 5213ea6585571ab8b9d77a26d213e4c7...
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.