OpenTechnical

OT-2026-000013131

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, plant vacuum fed, pulsed blow-off before set-down, on a tool changer

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-2026-000013131) never changes.

Identity and time

Publication numberOT-2026-000013131 · never reused
Internal UUID01a0ae6d-6fc8-7018-a0c3-032ad8dff03d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013131
StatusPUBLIC

Content hashes

Canonical text3257488153e065de603c0f4040f775edd19228b05de248b4ad90e7cd4535f438
Markdowneb97dd09f581b30c6b151a190e929fa368c9523da82ca019be5f5ddfa99bf1ec
PDF
Publication pagee4f8b8c785a6773b895356c319ae0e244e68a7a814573132c9fd69b9c6516ddf
Manifest968359ea2e49749d0b9487a990302924a2f6d9aca69aba8dfbeaf7b1a2836120

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
SignaturefB5JUFRtNwuG+zsj53oDvfcda303SeIymoonXK97ZIfI5X6ZobMvIy5OSatcrlmtbKaeZGKrhoR6ET/Gti4fAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:09:25.363733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013131
observed e4f8b8c785a6773b895356c319ae0e24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:25.344622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013131/manifest.json
observed 968359ea2e49749d0b9487a990302924...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:25.325604ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013131/publication.md
observed eb97dd09f581b30c6b151a190e929fa3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:25.306687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013131/publication.txt
observed 3257488153e065de603c0f4040f775ed...
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.