Abstract. Decentralized data hosting is blocked by the ability to guarantee speed of access. We propose a mechanism called verifiable bandwidth sampling, wherein a node samples another node's speed for solving a continuous off-chain data availability challenge. The challenge is designed to fit within the timekeeping of a verifiable clock - a blockchain consensus protocol. And in doing so, the bandwidth of a connection is securely measured. Building upon this result, we can design an automated market maker for data hosting (storage and bandwidth) which can scale horizontally in capacity.
dappnetbby/verifiable-bandwidth-sampling
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