Input
Transactions
8 references
A reference to a previous output being spent in a transaction (in UTXO systems). Inputs typically include a signature proving authorization to spend the referenced output.
Appears in 8 whitepaper sections
$BTC
Bitcoin
Incentive
...ed with transaction fees. If the output value of a transaction is less than its input value, the difference is a transaction fee that is added to the incentive value...
Combining and Splitting Value
...ons contain multiple inputs and outputs. Normally there will be either a single input from a larger previous transaction or multiple inputs combining smaller amounts...
Privacy
...om being linked to a common owner. Some linking is still unavoidable with multi-input transactions, which necessarily reveal that their inputs were owned by the same...
$ETH
Ethereum
Bitcoin As A State Transition System
...cryptographic public key). A transaction contains one or more inputs, with each input containing a reference to an existing UTXO and a cryptographic signature produc...
Code Execution
...deliberately simple and deterministic: every node running the EVM with the same input state and transaction must arrive at the same output state, ensuring consensus ...
$SOL
Solana
Introduction
... sequential computation — a SHA-256 hash chain where each output is used as the input for the next hash. Because SHA-256 is a pre-image resistant function, the only ...
Proof of History
...y SHA-256 — that is run continuously, with the previous output used as the next input. Periodically, the current count and hash output are recorded, and each recorde...
