OpenTechnical

OT-2026-000077177

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, pump fed, pressure sensor per zone, 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-2026-000077177) never changes.

Identity and time

Publication numberOT-2026-000077177 · never reused
Internal UUID01a0ae94-f508-76b8-bd50-2ff616a09d90 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077177
StatusPUBLIC

Content hashes

Canonical text2130dcfdb2dab4b5b8be028127ecd84cb70ebf1c8bf944b7b58dd6f139f2d5f4
Markdown8f2184ee7d9ef0061d5545da1694763769d197774f90037d1209c49987eb5018
PDF
Publication page92d3bbb02e77c00a8d622eab0c99dc34edd555ceb788a9fcfbbf9d57b627ef83
Manifestbedd52634c6ca888522d2a1cc307ebb10a9138d1133370fe5b39cde57017189b

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
SignaturelhFyPZReezk3Fqdy00uZmSn78OhbCY9fn1pMkfR5cJ19zaZqQy+RwACqtBMs/w0Vt5884TTPzIgMnNofOh/EAg==
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

2026-09-17T10:12:01.248358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177
observed 92d3bbb02e77c00a8d622eab0c99dc34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.224808ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/manifest.json
observed bedd52634c6ca888522d2a1cc307ebb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.195100ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/publication.md
observed 8f2184ee7d9ef0061d5545da16947637...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:12:01.003148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/publication.txt
observed 2130dcfdb2dab4b5b8be028127ecd84c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.021151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177
observed 92d3bbb02e77c00a8d622eab0c99dc34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:39.001984ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/manifest.json
observed bedd52634c6ca888522d2a1cc307ebb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.981301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/publication.md
observed 8f2184ee7d9ef0061d5545da16947637...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:38.961255ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077177/publication.txt
observed 2130dcfdb2dab4b5b8be028127ecd84c...
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.