Signed, publicly verifiable randomness from drand

A round from the drand League of Entropy beacon, attested and timestamped. One signed value every 30 seconds from a distributed network; no single participant, including Soren, can choose or predict it. Soren recomputes SHA-256 of the BLS signature and refuses to attest to a round that does not verify. The same round can be fetched free from api.drand.sh — what is sold is the signed evidence that Soren committed to this value at this moment.