OpenTechnical

OT-2026-000018489

Publication integrity record

Three cup vacuum gripper, three outlet manifold, plant vacuum fed, 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-2026-000018489) never changes.

Identity and time

Publication numberOT-2026-000018489 · never reused
Internal UUID01a0ae6e-b48a-7dda-9896-4dacfbf741a9 · 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-2026-000018489
StatusPUBLIC

Content hashes

Canonical textb68899aa209019c62b7e396c3c7b2b7b223b7daad51604a27a50d88da54de551
Markdownbdaa0d443a5f42d2916405d2bb9a5289a2ee886a7f8d69834c050ac9cace217f
PDF
Publication page5972292c9ab6b0f62ba354b300be299705a72667e5527b1789ee075a7d6c919c
Manifest6a243a12fdbfd643486d670925b372ae92a85103fb9d5260940c1c1ebe93352c

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
SignaturekLxKisRXFjD21Cc2dQPS9kySaSBmSd7n0uDnV2eIApRSJ+2NSluRGsXxLapof7u78UR4ckxYxrpKzczPHklSAA==
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

2026-09-17T12:01:15.633684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018489
observed 5972292c9ab6b0f62ba354b300be2997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:15.616717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018489/manifest.json
observed 6a243a12fdbfd643486d670925b372ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:15.601390ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018489/publication.md
observed bdaa0d443a5f42d2916405d2bb9a5289...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:15.583999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018489/publication.txt
observed b68899aa209019c62b7e396c3c7b2b7b...
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.