| name | blockchain-guide |
| description | Blockchain architecture, chain services, TSS keygen/keysign, and vault key management. |
| user-invocable | false |
Blockchain Architecture Guide
Vultisig supports 40+ blockchains using threshold signature schemes (TSS) with three cryptographic algorithms.
Overview
| Algorithm | Library | Curve | Chains |
|---|
| ECDSA | godkls | secp256k1 | Bitcoin, EVM, THORChain, Cosmos, Ripple, Tron (34 chains) |
| EdDSA | goschnorr | Ed25519 | Solana, Cardano, Polkadot, Ton, Sui (6 chains) |
| ML-DSA | vscore | ML-DSA-44 | Post-quantum support (future) |
Key Coordination
BlockChainService (Core/Services/BlockChainService.swift) coordinates chain-specific operations:
- Fetches chain-specific transaction parameters (
BlockChainSpecific)
- Normalizes fees (UTXO x2.5, EVM x1.5 multipliers)
- Manages caching and Solana blockhash refresh
Chain Types
ChainType enum (Core/States/ChainType.swift):
.UTXO - Bitcoin, Litecoin, Dash, etc..Cardano - Special UTXO (EdDSA).EVM - Ethereum, Polygon, etc..Solana, .Sui, .Polkadot, .Ton - EdDSA chains.THORChain, .Cosmos, .Ripple, .Tron - ECDSA chains
Supporting Files
- Chain details: See
chains.md in this skill directory
- Keygen/Keysign flows: See
keygen-keysign.md in this skill directory
- Endpoint management:
Core/Utils/Endpoint.swift (~1500 lines, centralized URLs)
- Vault model:
Model/Vault.swift (SwiftData, holds keys + coins)
