OpenTechnical

OT-2026-000029500

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained 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-2026-000029500) never changes.

Identity and time

Publication numberOT-2026-000029500 · never reused
Internal UUID01a0ae73-5e21-7d50-b20c-4187df37b6c3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029500
StatusPUBLIC

Content hashes

Canonical text6a74ade823d780b33827b4840a95bba054e219c6d7b508c22225ad1443590d2a
Markdownaf340e1bc1b686f877f33029c5847959bca03951ce693e7ba6e4e733062c28d2
PDF
Publication page5db20d3b1bac054af898ef4e61d744537dfe851cd023eb3c3b4a1956e3074864
Manifest7acccdc4b3feeb56e05f9c149c1c5477512b8546f44e6dc7d3d46c49cbf7333f

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
SignaturePOvnUe0vcj3tzk/5e8WeARviQY9VpnuQUwr0Gzjq/FeYWwo6S03DeENZ3KzGnH151dNui9d1OyutkkxCKiGLDQ==
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

2026-09-17T11:39:07.925261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029500
observed 5db20d3b1bac054af898ef4e61d74453...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.907387ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029500/manifest.json
observed 7acccdc4b3feeb56e05f9c149c1c5477...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.888299ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029500/publication.md
observed af340e1bc1b686f877f33029c5847959...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:07.868986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029500/publication.txt
observed 6a74ade823d780b33827b4840a95bba0...
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.