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There are apps in the Glow ecosystem that require a trusted and verifiable source of randomness to function properly. An example of this is the Glow Lotto.
Terrand, co-built by the CosmWasm and the Loterra team, uses CosmWasm smart contracts to act as a relayer of drand, one of the most secure and recognised random number generators on the Internet. Drand is supported by the League of Entropy, a council initiated by Protocol Labs and constituted by reputable institutions such as Cloudflare, the Ethereum Foundation and the UCL.
Combining a non-predictable, bias-resistant and verifiable source of randomness such as drand and the decentralized censorship of smart contracts, Terrand guarantees the fairness and security of any random number used in Glow apps.