The smallest unit of SOL, named after Leslie Lamport. 1 SOL = 1,000,000,000 (10^9) lamports. All balances and transfers on Solana are denominated in lamports internally. The minimum balance for an account to be rent-exempt is calculated in lamports based on the account's data size.
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The smallest unit of SOL, named after Leslie Lamport. 1 SOL = 1,000,000,000 (10^9) lamports. All balances and transfers on Solana are denominated in lamports internally. The minimum balance for an account to be rent-exempt is calculated in lamports based on the account's data size.
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Lamport (lamport) Category: Programming Model Definition: The smallest unit of SOL, named after Leslie Lamport. 1 SOL = 1,000,000,000 (10^9) lamports. All balances and transfers on Solana are denominated in lamports internally. The minimum balance for an account to be rent-exempt is calculated in lamports based on the account's data size. Related: SOL, Rent
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The native token of the Solana blockchain, used for paying transaction fees, staking, and rent. 1 SOL equals 1 billion lamports. SOL has an inflationary supply schedule starting at 8% annually, decreasing by 15% per year, with a long-term floor of 1.5%. Transaction base fees (5,000 lamports) are partially burned.
A fee mechanism that charges accounts for storing data on-chain. Accounts must maintain a minimum lamport balance proportional to their data size (~6.96 SOL per MB) to be rent-exempt. Since 2022, all new accounts must be rent-exempt at creation. Accounts falling below the threshold are removed during rent collection.
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A built-in program responsible for deploying, loading, and executing on-chain programs by interpreting their binary encoding. Solana has multiple loaders: the original BPF Loader (deprecated, immutable programs), BPF Loader 2 (deprecated), and the current Upgradeable BPF Loader that supports program upgrades and manages the program/program-data account split.
The unit used to express compute unit pricing for priority fees on Solana. One lamport equals 1,000,000 micro-lamports. When setting a compute unit price via the Compute Budget Program, the price is specified in micro-lamports per compute unit. The total priority fee is calculated as (compute unit price in micro-lamports * compute units consumed) / 1,000,000, rounded down to lamports.
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The native token of the Solana blockchain, used for paying transaction fees, staking, and rent. 1 SOL equals 1 billion lamports. SOL has an inflationary supply schedule starting at 8% annually, decreasing by 15% per year, with a long-term floor of 1.5%. Transaction base fees (5,000 lamports) are partially burned.
A fee mechanism that charges accounts for storing data on-chain. Accounts must maintain a minimum lamport balance proportional to their data size (~6.96 SOL per MB) to be rent-exempt. Since 2022, all new accounts must be rent-exempt at creation. Accounts falling below the threshold are removed during rent collection.
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The fundamental data storage unit on Solana. Every piece of state is stored in an account identified by a 32-byte public key. Accounts hold a lamport balance, an owner program, a data byte array (up to 10MB), and an executable flag. Only the owning program can modify an account's data, but anyone can credit lamports to it.
Executable code deployed on-chain, equivalent to a smart contract on other blockchains. Programs are stateless—they store no data themselves but read/write data in separate accounts they own. Programs are compiled to SBF bytecode and loaded via the BPF Loader. Every program has a unique Program ID (its account's public key).
A single operation within a transaction that invokes a program. An instruction specifies: (1) the program ID to call, (2) an array of account metas (pubkey, is_signer, is_writable), and (3) an opaque data byte array. Programs decode the instruction data to determine which operation to perform.
An atomic unit of execution containing one or more instructions, a recent blockhash, and one or more signatures. All instructions in a transaction execute sequentially and atomically—if any instruction fails, the entire transaction reverts. Transactions have a 1,232-byte size limit (matching IPv6 MTU) and a default 200,000 CU budget.