OpenTechnical

OT-2026-000069808

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000069808) never changes.

Identity and time

Publication numberOT-2026-000069808 · never reused
Internal UUID01a0ae91-185f-7a98-aa4d-c751048f2183 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069808
StatusPUBLIC

Content hashes

Canonical texta528c7a1f4170ad55f191e64b62de84035204286420e774f3f9cab937105a115
Markdown68de3356a00c12411609e9096d7d43b3738051fa3008c958f472ecfdb6324be5
PDF
Publication pagec33e2248f2b968aace8e26f9842c91335f1d8344cc2bd126e7b7517835c1520b
Manifest5f549968ad2e10b5e6541f92ca48cf1d008ae0ad252bde74efe410acbd932a2c

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
Signatures0jX7N8TA+x5f0sr44PX/yvra4OIYS7q/uMMhRJvhV+1aSMy1edPmLK3yle34vFF7RnPwwL/iiPHzu93rJIbAg==
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

2026-09-17T10:26:38.409468ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069808
observed c33e2248f2b968aace8e26f9842c9133...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.393448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069808/manifest.json
observed 5f549968ad2e10b5e6541f92ca48cf1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.375641ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069808/publication.md
observed 68de3356a00c12411609e9096d7d43b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.357580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069808/publication.txt
observed a528c7a1f4170ad55f191e64b62de840...
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.