Chainlink (blockchain oracle)

[3][4] The network is intended to be used to facilitate the transfer of tamper-proof data from off-chain sources to on-chain smart contracts.

[6] In 2018, Chainlink integrated Town Crier, a trusted execution environment-based blockchain oracle that Juels also worked on.

[10] Chainlink's decentralized oracle network is an open-source technology infrastructure that allows any blockchain to securely connect to off-chain data and computation resources.

The network nodes fetch, validate, and deliver data from multiple sources onto blockchains to execute smart contracts.

ZDNet reported the verifiability of the random number generation ensures the in-game results are tamper-proof.

A visual representation of Chainlink's "smart bond architecture"