Token Ecosystem

Name Service (SNS)

The Solana Name Service (SNS) by Bonfida that maps human-readable .sol domain names to Solana addresses. Domains are NFTs that resolve to wallet addresses, enabling users to send tokens to 'alice.sol' instead of a pubkey. The registry supports subdomains, and domain records can store additional data (IPFS links, social handles).

IDname-serviceAliasSNSAlias.sol domainsAliasBonfida Name Service

Plain meaning

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The Solana Name Service (SNS) by Bonfida that maps human-readable .sol domain names to Solana addresses. Domains are NFTs that resolve to wallet addresses, enabling users to send tokens to 'alice.sol' instead of a pubkey. The registry supports subdomains, and domain records can store additional data (IPFS links, social handles).

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Technical context

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SPL assets, token standards, metadata, and NFT primitives.

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Name Service (SNS) (name-service)
Category: Token Ecosystem
Definition: The Solana Name Service (SNS) by Bonfida that maps human-readable .sol domain names to Solana addresses. Domains are NFTs that resolve to wallet addresses, enabling users to send tokens to 'alice.sol' instead of a pubkey. The registry supports subdomains, and domain records can store additional data (IPFS links, social handles).
Aliases: SNS, .sol domains, Bonfida Name Service
Related: Solana Program Library (SPL)
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Concept graph

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Branch

Solana Program Library (SPL)

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.

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Token Ecosystem

Solana Program Library (SPL)

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.

Token Ecosystem

NFT (Non-Fungible Token)

A non-fungible token on Solana—an SPL token with 0 decimals, supply of 1, and revoked mint authority. The NFT's metadata (image, attributes) is stored off-chain (Arweave/IPFS) linked via the Metaplex metadata account's URI field. NFTs can be standard, compressed (cNFT), programmable (pNFT), or Core assets, each with different trade-offs.

Token Ecosystem

Minting

The process of creating new tokens or NFTs on-chain by invoking the MintTo instruction on an SPL Token mint account. For fungible tokens, minting increases the supply by the specified amount. For NFTs, minting creates the single token and typically revokes mint authority afterward. Minting requires the mint authority's signature and a destination token account to receive the newly created tokens.

Token Ecosystem

SPL Token Program

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.

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Token Ecosystemwrapped-sol

Wrapped SOL (wSOL)

SOL deposited into an SPL Token account to be used as an SPL token (mint: So11111111111111111111111111111111111111112). wSOL enables SOL to interact with programs that only accept SPL tokens (DEXs, lending protocols). Creating a wSOL account requires the SyncNative instruction to sync lamport balance to the token amount. Close the account to unwrap back to SOL.

AliaswSOL
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Token Ecosystemspl

Solana Program Library (SPL)

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.

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Token Ecosystem

SPL Token Program

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.

Token Ecosystem

Solana Program Library (SPL)

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.

Token Ecosystem

Token-2022 (Token Extensions)

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.

Token Ecosystem

Mint

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.