OpenTechnical

OT-2026-000090203

Publication integrity record

Foam pad vacuum gripper, four zone face, six outlet manifold, plant vacuum 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-2026-000090203) never changes.

Identity and time

Publication numberOT-2026-000090203 · never reused
Internal UUID01a0ae9c-428f-75a7-bbcf-caef3041813b · 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-2026-000090203
StatusPUBLIC

Content hashes

Canonical text5bc351bf3d429061601fcecb0ae17a5d3569f9700ca9a9dfbc982f6a0078ab34
Markdown3689152ae58326555584de26de5b4dac08dfba10f06a6a93bac74d38ea29ec34
PDF
Publication pageac4737b07692a5e1482b4543d5fafb20d3169ac131e8d961294d0b465b6b6504
Manifest5de356a9bec2efc9ae4fa8f3fa98810eb1e797a589433941a43b5a033d198d99

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
SignatureBL25zufMoe3K2hGze1WsEkUMITy9s32MgDYqStELstVwP+tRGNUUq67QoFaC19KaQ6j+30tAxKYdSSOerfTaCQ==
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

2026-09-17T09:46:16.640483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090203
observed ac4737b07692a5e1482b4543d5fafb20...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.623209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090203/manifest.json
observed 5de356a9bec2efc9ae4fa8f3fa98810e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.604779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090203/publication.md
observed 3689152ae58326555584de26de5b4dac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:16.586919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090203/publication.txt
observed 5bc351bf3d429061601fcecb0ae17a5d...
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.