OpenTechnical

OT-2026-000042146

Publication integrity record

Foam pad vacuum gripper, common isolation valve, three stage ejector, 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-2026-000042146) never changes.

Identity and time

Publication numberOT-2026-000042146 · never reused
Internal UUID01a0ae7a-5d71-70e5-93c0-f361d135b708 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042146
StatusPUBLIC

Content hashes

Canonical text557923ac555310d5c3ce1d6ea16fc9d08ab7406ae34a510a320bc0e6190e540e
Markdown5df0196baef43d009af16e64fc2a052338e4974d3af4ce1829035b1fe0d93943
PDF
Publication page67f34064a0abb15e7c5a38a88170497ea32f991d7da037ebaf13c2e4ee3469da
Manifest9f690a086bc78cdfcdeec695dca70edce33ff0ddab1f4a28e3b9c13f4bebd07a

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
SignaturetrsT7AgCHz/qbFLHtSL3IArLif5RAQbIwM8jMhwL7R6Y1rS9wENNpjq9buhBlWKQ8eAT8XSezsxiIkH0z1BHDw==
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

2026-09-17T11:15:41.904001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042146
observed 67f34064a0abb15e7c5a38a88170497e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.885301ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042146/manifest.json
observed 9f690a086bc78cdfcdeec695dca70edc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.865605ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042146/publication.md
observed 5df0196baef43d009af16e64fc2a0523...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:41.845916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042146/publication.txt
observed 557923ac555310d5c3ce1d6ea16fc9d0...
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.