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Inconsistent information across organizational boundaries and �blind spots� throughout the supply chain hinder the efficient flow of goods. A blockchain is a collaborative, tamper-resistant ledger that maintains transactional records. The transactional records (data) are grouped into blocks. A block. A blockchain is a digitally distributed, decentralized, public ledger that exists across a network. It is most noteworthy in its use with cryptocurrencies.

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Using blockchain in this way would make votes nearly impossible to tamper with. Say, for example, that a potential tenant would like to lease an apartment using a smart contract. Most blockchains like Ethereum depend on probabilistic finality and never entirely finalize transactions. This continues until a miner generates a valid hash, winning the race and receiving the reward. If you attempt to deposit a check on Friday evening, for example, you may not actually see funds in your account until Monday morning.