The pubkey authorized to mint new tokens via the MintTo instruction. Set at mint creation and can be changed or revoked (set to None) by the current authority. Revoking mint authority makes the supply fixed—critical for trust in fungible tokens. For NFTs, mint authority is typically revoked after minting the single token.
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The pubkey authorized to mint new tokens via the MintTo instruction. Set at mint creation and can be changed or revoked (set to None) by the current authority. Revoking mint authority makes the supply fixed—critical for trust in fungible tokens. For NFTs, mint authority is typically revoked after minting the single token.
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SPL assets, token standards, metadata, and NFT primitives.
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Mint Authority (mint-authority) Category: Token Ecosystem Definition: The pubkey authorized to mint new tokens via the MintTo instruction. Set at mint creation and can be changed or revoked (set to None) by the current authority. Revoking mint authority makes the supply fixed—critical for trust in fungible tokens. For NFTs, mint authority is typically revoked after minting the single token. Related: Mint, Authority
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An on-chain account defining a token type. A mint specifies: supply (total minted), decimals (0 for NFTs, 6 for USDC, 9 for most tokens), mint authority (who can mint), and optional freeze authority. Each unique token (USDC, JitoSOL, etc.) has exactly one mint account. Mint address serves as the token's unique identifier.
A pubkey with administrative privileges over a resource—such as the mint authority (can mint tokens), freeze authority (can freeze accounts), upgrade authority (can upgrade a program), or the signer authorized to perform operations on a PDA-controlled account. Authority is a convention, not a runtime concept.
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An on-chain account defining a token type. A mint specifies: supply (total minted), decimals (0 for NFTs, 6 for USDC, 9 for most tokens), mint authority (who can mint), and optional freeze authority. Each unique token (USDC, JitoSOL, etc.) has exactly one mint account. Mint address serves as the token's unique identifier.
Token distribution method using a Merkle tree to efficiently verify eligibility. A Merkle root representing all eligible addresses and amounts is stored on-chain. Recipients submit a Merkle proof to claim tokens, and the program verifies the proof against the root. This allows distributing to millions of addresses with minimal on-chain storage, paying only per actual claim.
The pubkey authorized to freeze and thaw token accounts, preventing transfers. Set optionally at mint creation. When a token account is frozen, no transfers, burns, or closes can occur until thawed. Used for regulatory compliance (e.g., USDC) and security (freezing compromised accounts). Can be revoked by setting to None.
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An on-chain account defining a token type. A mint specifies: supply (total minted), decimals (0 for NFTs, 6 for USDC, 9 for most tokens), mint authority (who can mint), and optional freeze authority. Each unique token (USDC, JitoSOL, etc.) has exactly one mint account. Mint address serves as the token's unique identifier.
A pubkey with administrative privileges over a resource—such as the mint authority (can mint tokens), freeze authority (can freeze accounts), upgrade authority (can upgrade a program), or the signer authorized to perform operations on a PDA-controlled account. Authority is a convention, not a runtime concept.
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The original Solana Program Library token program (TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA) that implements fungible and non-fungible token operations. It manages mints (token definitions) and token accounts (balances). Core instructions include InitializeMint, MintTo, Transfer, Burn, Approve (delegation), and Revoke. All SPL tokens on mainnet before Token-2022 use this program.
Solana Program Library—a collection of on-chain programs and client libraries maintained by Solana Labs. Key SPL programs include Token, Token-2022, Associated Token Account, Memo, Name Service, Stake Pool, and Account Compression. SPL programs are deployed to well-known addresses and serve as the standard building blocks for Solana applications.
The next-generation token program (TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb) that extends SPL Token with configurable extensions. Extensions include transfer fees, confidential transfers, transfer hooks, permanent delegate, non-transferable tokens, interest-bearing tokens, metadata, and more. Token-2022 is backwards-compatible with SPL Token for basic operations.
An on-chain account defining a token type. A mint specifies: supply (total minted), decimals (0 for NFTs, 6 for USDC, 9 for most tokens), mint authority (who can mint), and optional freeze authority. Each unique token (USDC, JitoSOL, etc.) has exactly one mint account. Mint address serves as the token's unique identifier.