OpenTechnical

OT-2026-000018357

Publication integrity record

Three cup vacuum gripper, three outlet manifold, single stage ejector, manifold pressure sensor, pulsed blow-off before set-down

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-2026-000018357) never changes.

Identity and time

Publication numberOT-2026-000018357 · never reused
Internal UUID01a0ae6e-b489-7ab8-a3d6-98b7780752c5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018357
StatusPUBLIC

Content hashes

Canonical textdeb4e4cfed65be428b87ef46397497545815d915d834a9c286e81f531695ad65
Markdownfcaf41671f31fe61c045dd0a7463c6f5a07f6be5688086023111f49f4374fc72
PDF
Publication page35fc8ab50edd9257a267abde4c13f55915969e904733480c12e0f3857f22dac8
Manifestc85081cb3861c7a1a03c3081f5231f08c19f0e713f76631b01112aef468cb894

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
SignatureaPEi+f42MhC5kVKrfL6Zs0iBCffw/DOIwBwU2C1O+rjs2B02F+ZQTdvpM3iaNx1IWt/5hzj3HuRT9UFSjqsaAg==
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

2026-09-17T12:01:05.602155ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018357
observed 35fc8ab50edd9257a267abde4c13f559...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:05.585412ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018357/manifest.json
observed c85081cb3861c7a1a03c3081f5231f08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:05.568583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018357/publication.md
observed fcaf41671f31fe61c045dd0a7463c6f5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:05.552214ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018357/publication.txt
observed deb4e4cfed65be428b87ef4639749754...
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.