ICS-20

Estándar de Contrato Inteligente

Interchain Standard 20 (Fungible Token Transfer): the IBC application-layer protocol defining packet data structures, state machine logic, and encoding for permissionless cross-chain fungible token transfers. Implements a lock-and-mint / burn-and-unlock mechanism with IBC denomination tracing to preserve asset provenance across multi-hop transfers. The de facto cross-chain token standard for the Cosmos interchain ecosystem.

Estándar Abierto
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Detalles

Licencia https://github.com/cosmos/ibc/tree/main/spec/app/ics-020-fungible-token-transfer
Estado de Desarrollo 🟢 Activo
Detalle del Estado de Desarrollo Candidate (v1 active production standard); v2 deprecated
Propietario Interchain Foundation / IBC Protocol team
Órgano de Gobierno Interchain Foundation (IBC protocol team)
País Switzerland (ICF) / Global
Año de Inicio 2019
Stack Cosmos SDK (Go / ibc-go); ibc-rs (Rust implementation); operates over IBC transport layer (ICS-2 light clients, ICS-3 connections, ICS-4 channels); SCALE/Protobuf encoding
Financiamiento Interchain Foundation (ICF) grants; volunteer community contributors
Última Investigación 9 mar 2026

Dominios de Caso de Uso

Ayuda Mutua e Intercambio Evolución de Plataformas y Soberanía

Capacidades

Intercambio no monetario Portabilidad de datos

Estándar de Contrato Inteligente Atributos

Orígenes Authored by Christopher Goes (cwgoes@interchain.berlin) on July 15, 2019 as part of the original IBC specification. Designed to solve the fundamental problem of moving tokens between sovereign IBC-connected blockchains without centralized bridges, using cryptographic light-client proofs. Deployed to production with the Cosmos Hub IBC launch in 2021.
Formatos de Datos FungibleTokenPacketData: {denom: string, amount: uint256, sender: string, receiver: string}; IBC denomination trace format: {transfer_port}/{channel_id}/{base_denom}; Protobuf encoding for wire format
Términos Apache 2.0
Fondos Unknown (ICF funds IBC core development broadly; ICS-20 specific budget not disclosed)
Basado En ICS-2 (client semantics), ICS-3 (connection semantics), ICS-4 (channel semantics), ICS-25/ICS-26 (IBC handler/routing interfaces)
Permisos Permissionless: any IBC-enabled chain may open channels and initiate ICS-20 token transfers; no whitelisting of chains, channels, or denominations required
Herramientas de Desarrollo ibc-go (Go SDK module); ibc-rs (Rust); Hermes relayer; Go Relayer; Interchain Test framework; CosmJS; Keplr wallet
Madurez del Protocolo / Estandarización Production-grade standard in continuous operation since 2021; used by 100+ IBC-connected chains and averaging 2M+ monthly active users across the interchain; IBC v2 / Eureka extends ICS-20 reach to non-Cosmos chains
Marco de Confianza Trust-minimized: security reduces to the security of participating chains and their light clients; no centralized bridge operator; cryptographic proof verification at the destination chain; Byzantine-fault-tolerant within IBC's threat model
Dominio de Aplicación Objetivo Cross-chain DeFi (DEX, lending, liquidity); interchain governance; cross-chain staking; multi-chain DAO treasury management; civic applications spanning multiple sovereign chains
Modelo de Despliegue Module deployed as part of Cosmos SDK chain runtime; channels established via IBC handshake per chain pair; permissionless channel creation
Tipo de Estándar Cross-chain Standard
Ecosistema Cosmos (also extending to Ethereum, Solana, and beyond via IBC v2 / Eureka)