OpenTechnical

OT-2026-000067940

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, sustained blow-off after 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-2026-000067940) never changes.

Identity and time

Publication numberOT-2026-000067940 · never reused
Internal UUID01a0ae8f-c4fd-7353-afd1-759c25f8ff35 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:52.812402Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067940
StatusPUBLIC

Content hashes

Canonical texta261438811926a1340f57f942ec5b894655ca49fb4a3ed3d82f12286a8b44949
Markdownd04a497e16cf192ec26db11c18806a41631a2ab3e5a7b9890227f213377a08a7
PDF
Publication page997485c6e6b7684fe724ec9059ae74f83a4a6eb1c6c77db6da40c32745e1ecda
Manifestc0e7199c004e61c8208430092bfcf5c58ce33af7d6108004a36567ac13c5e7f4

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
Signaturerl6aF8OkS7bYmTJjCSx/xr65kXgCkVQn5S2OD15JEXxsM9dxkmltPDMBfTeAYD+vYw7DoCn2xM/JTbpmNULSCQ==
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

2026-09-17T10:30:21.437247ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067940
observed 997485c6e6b7684fe724ec9059ae74f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.418409ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067940/manifest.json
observed c0e7199c004e61c8208430092bfcf5c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.399428ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067940/publication.md
observed d04a497e16cf192ec26db11c18806a41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:30:21.381858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067940/publication.txt
observed a261438811926a1340f57f942ec5b894...
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.