OpenTechnical

OT-2026-000090414

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000090414) never changes.

Identity and time

Publication numberOT-2026-000090414 · never reused
Internal UUID01a0ae9c-7f2d-73a6-8471-3032b641a60f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090414
StatusPUBLIC

Content hashes

Canonical textaa7ef84fb8f38f9542ce85b13815c1c55c5aaa96a0550d274b1d2b5a8be0519a
Markdown5e6e6f3b99a365c721160e771d6c62c39bb6d8be67dec42b51e485503c2e88c0
PDF
Publication pagea110d3fbcddae9ee1629c7be93165a2e5bc3198300c1ceb5b1748574b67873ad
Manifest172dee73a13a706e236b30817788e923fe256d931dbb13833b75842f18766aaa

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
SignaturemYBWFJ9j7N9TVMSNZwXwu0SZB9lHIxxL0FIMfuI9n52oxHt1WjrqWs5uSXxoiht5dE/ZFJc+IpZzHkFkHq4NCg==
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

2026-09-17T09:44:31.758507ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090414
observed a110d3fbcddae9ee1629c7be93165a2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:31.741569ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090414/manifest.json
observed 172dee73a13a706e236b30817788e923...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:31.722771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090414/publication.md
observed 5e6e6f3b99a365c721160e771d6c62c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:31.703990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090414/publication.txt
observed aa7ef84fb8f38f9542ce85b13815c1c5...
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.