OpenTechnical

OT-2026-000029004

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000029004) never changes.

Identity and time

Publication numberOT-2026-000029004 · never reused
Internal UUID01a0ae73-2a9e-7196-a773-e1c60ef3e724 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029004
StatusPUBLIC

Content hashes

Canonical textcc539cf026b3c47b4435a3d360c691227f099ae293ff974794b1219a36a60069
Markdown0cbe22a9f8efb3f747ecae6ee2d39dd0b357608c2187be9bcc4ce4180dfb62a0
PDF
Publication page2b459db462f7eb7cfbb9f0397d9a113cf3ccd4e7839eb054065b5cadcdd1ebd4
Manifesta33525a05752b418960beef16a0c7f356f20b0769c74118a6bcd75ea52091ba4

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
SignatureCAAS4UkJRTbZ4h4Bnen6CtebEPTwLDFpuQlmcQh7Nm0KNCuJ/NuL1LDCGSWOP9J9XNY8dD3VPBcgg/cjK78eBA==
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

2026-09-17T08:20:33.547542ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029004
observed 2b459db462f7eb7cfbb9f0397d9a113c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:33.528607ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029004/manifest.json
observed a33525a05752b418960beef16a0c7f35...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:33.511891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029004/publication.md
observed 0cbe22a9f8efb3f747ecae6ee2d39dd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:33.495441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029004/publication.txt
observed cc539cf026b3c47b4435a3d360c69122...
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.