OpenTechnical

OT-2026-000018669

Publication integrity record

Four cup vacuum gripper, four 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-2026-000018669) never changes.

Identity and time

Publication numberOT-2026-000018669 · never reused
Internal UUID01a0ae6e-d520-7442-9e48-1f4706c5edb3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:54.261386Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018669
StatusPUBLIC

Content hashes

Canonical text3504ec4f1dfedd1e3be1bdb009c0e5d3437dec7fad2fbe9ca4418cdbb43ec34f
Markdown95deb59727032c658d93bf60b9e39d638a0b1d18507269e19cd828297dce0e56
PDF
Publication pagefd27d366c9b11d0de014b761485440d5b289496e283d482c7319f97b91ff5c61
Manifestf0ce65a977502dab0fe4d97e0e5dfd8bc3e02f5ee33211b757a4dd1d9d33feb1

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
SignatureCmZwdN84Dcfqj7uGT01J/lM8ZB46+uZ5IwSaSM5uKzQErHDN8iZnWPjUE9kJfXANoBzCzivH3gC+HULsrgOtAw==
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

2026-09-17T11:59:15.831566ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018669
observed fd27d366c9b11d0de014b761485440d5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:15.814310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018669/manifest.json
observed f0ce65a977502dab0fe4d97e0e5dfd8b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:15.795397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018669/publication.md
observed 95deb59727032c658d93bf60b9e39d63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:59:15.776844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018669/publication.txt
observed 3504ec4f1dfedd1e3be1bdb009c0e5d3...
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.