OpenTechnical

OT-2026-000064535

Publication integrity record

Foam pad vacuum gripper, three zone face, pump fed, pressure sensor per zone, 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-2026-000064535) never changes.

Identity and time

Publication numberOT-2026-000064535 · never reused
Internal UUID01a0ae8d-a462-7016-a92c-435d0e115768 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:33.392114Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000064535
StatusPUBLIC

Content hashes

Canonical textdc1f3cbcbf3bf57c296abd5a1d48591b148112c62c5f52ee333610b409e716a6
Markdownd1f6909eb699bc84e1bd51e12bb303e3844a79d2c9e4aed52058cb402974b72b
PDF
Publication page1620344ebc59b226b1c54fe41eb1c099099f68660820cac1f6f5bc891c3bae51
Manifest1731aa329cca8f2a9c26c17e0d61c5302d6e4290c794c361ecf6719163862f8d

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
Signaturev1dX54dIRf0fbq30URlR90CztEMQ659c7AgBT8MxCK43lZ/yLLJYbGC359HFAXXQ2jGwYIGG5rUwptDvJ3AQBA==
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

2026-09-17T10:36:45.041570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064535
observed 1620344ebc59b226b1c54fe41eb1c099...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:45.024578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064535/manifest.json
observed 1731aa329cca8f2a9c26c17e0d61c530...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:45.007797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064535/publication.md
observed d1f6909eb699bc84e1bd51e12bb303e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:36:44.989368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000064535/publication.txt
observed dc1f3cbcbf3bf57c296abd5a1d48591b...
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.