A complex cryptographic coinage transaction is transactionally sharded into multiple simple cryptographic coinage transactions. The complex cryptographic coinage transaction specifies cryptographic debits and/or deposits to/from multiple input accounts and/or multiple output accounts. The simple cryptographic coinage transactions, however, only specify a single one of the input accounts and/or a single one of the output accounts. A single server within a blockchain environment may thus process one of the simple cryptographic coinage transactions without requiring calls for data from other servers responsible for other accounts.