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No. In bitcoin, you don't spend from an account. You spend "unspent transaction output" or UTXO. There is no unspent transaction that B owns, so any transactio
by nordsieck 9y ago
No. In bitcoin, you don't spend from an account. You spend "unspent transaction output" or UTXO.
There is no unspent transaction that B owns, so any transaction B creates to send money to C is invalid.
- tylersmith 9y agoThey can't actually do it simultaneously but after A sends to B, B can create a transaction spending that output to C and both transactions can occur in the same block.