OpenTechnical

OT-2026-000090016

Publication integrity record

Foam pad vacuum gripper, two zone face, six outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000090016) never changes.

Identity and time

Publication numberOT-2026-000090016 · never reused
Internal UUID01a0ae9c-428e-715d-91fc-d39077336746 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090016
StatusPUBLIC

Content hashes

Canonical text58c9c8a931975b38c7806748808296442c2ed062ab7fda109a2a446f9a71a277
Markdown135bbb81317e2fc8a335381d2e567db44da0dc12b919dfb915a97b4b4eda212a
PDF
Publication page48b29d4e728074fd561634aa2089645cfe753721aefb7e0fb9172f640e7b3004
Manifest99ec85ea8c7f6edf300edce6925fb175dabab5c0ac0bb7cad08da0c698b99a00

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
SignatureHD/PremwACNN8MitxsUq00F9vPu3ZjKV8KquvJAC+3yYQ7Rj8/qUEjInsLsNhcc7vNoxGA6n8N2neXht9S6GDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:45:02.700535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090016
observed 48b29d4e728074fd561634aa2089645c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:02.660243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090016/manifest.json
observed 99ec85ea8c7f6edf300edce6925fb175...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:02.641101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090016/publication.md
observed 135bbb81317e2fc8a335381d2e567db4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:02.600988ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090016/publication.txt
observed 58c9c8a931975b38c780674880829644...
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.