The first quantum oracle for markets.

At minute M the row for minute M+1 is written: the sampling universe (by content hash) and the drand round number that will be used. Both follow from the clock, so no one can choose a round after seeing it. A round that could be re-rolled would be verified and worthless.

The beacon’s BLS signature is checked against the League of Entropy group key, pinned by chain hash, and the randomness must equal the SHA-256 of that signature. Checked with drand-client.

The chain’s signature, the pulse’s signature, and the reveal of the value the previous pulse committed to in advance. Checked with curby-client.

The recorder runs these checks before a source may enter the seed. This page loads the same libraries, fetches the same rounds from each beacon, re-runs every check, rebuilds the seed, redraws the sample and recomputes the chain hash. A mismatch is shown where it occurs.

Three feeds that measure different things on different clocks — a position, an activity and a settlement failure — attested separately, never blended. The borrow-cost leg is listed because it is missing: no free authoritative feed exists.