go-mhda

MultiChain Hierarchical Deterministic Address format (MHDA) with Uniform Resource Name (URN) format RFC 8141 compatibility.

This is address notation expands BIP32/44/84, and providing additional possibilities for configuring any blockchain address types.

URN:

urn:mhda:nt:{network_type}:ct:{coin_type}:ci:{chain_id}:dt:{derivation_type}:dp:{derivation_path}:aa:{algorithm}:af:{address_format}:ap:{address_prefix}:as:{address_suffix}

Parameter	Name		Type	Description
urn	URN Namespace	constant	string	"mhda"
nt	Network Type	required	string	Network type, grouped by name: "evm", "tvm", "avm", "btc", "cosmos"
ct	Coin Type	required	numeric	Coin type, according slip44: Bitcoin/BTC=0, Litecoin/LTC=2, Ethereum/ETH=60, Tron/TRX=195, Polygon/MATIC=966
ci	Chain Id	required	string	Chain id: for numeric - "0x1", "0x10", for another - string "axelar"
dt	Derivation Path Type	optional	string	Derivation path type by name: "root", "bip32", "bip44", "bip49", "bip84", "cip11"
dp	Derivation Path	optional	string | null	Derivation path, according dt parameter: null, "m/0'/0/0", "m/44'/0'/0'/0/0", "m/49'/0'/0'/0/0", "m/84h/0h/0h/0/0"
aa	Address Algorithm	optional	string | null	Address hierarchical algorithm by name: "ed25519", "secp256k1"
af	Address Format	optional	string | null	Address format by name: "hex", "p2pkh", "p2s4", "bech32"
ap	Address Prefix	optional	string | null	Address prefix: "0x", "1|3|bc1"
as	Address Suffix	optional	string | null	Address suffix

Examples Ethereum

BIP-44

# Short format
# default filled: aa=secp256k1, af=hex, ap=0x
urn:mhda:nt:evm:ct:60:ci:0x1:dt:bip44:dp:m/44h/60h/0h/0/0

# Long format
urn:mhda:nt:evm:ct:60:ci:0x1:dt:bip44:dp:m/44h/60h/0h/0/0:aa:secp256k1:af:hex:ap:0x

Examples Bitcoin

BIP-44

# Legacy (P2PKH) // ap=1
urn:mhda:nt:btc:ct:0:ci:bitcoin:dt:bip44:dp:m/44h/0h/0h/0/0:aa:secp256k1:af:p2pkh:ap:1

# Nested SegWit (P2SH) // ap=3
urn:mhda:nt:btc:ct:0:ci:bitcoin:dt:bip44:dp:m/84h/0h/0h/0/0:aa:secp256k1:af:p2sh:ap:3

# Native SegWit (Bech32) // ap=bc1q
urn:mhda:nt:btc:ct:0:ci:bitcoin:dt:bip44:dp:m/84h/0h/0h/0/0:aa:secp256k1:af:p2pkh:ap:bc1q

# Taproot (P2TR)  // ap=bc1p
urn:mhda:nt:btc:ct:0:ci:bitcoin:dt:bip84:dp:m/86h/0h/0h/0/0:aa:secp256k1:af:p2pkh:ap:bc1p

Examples Avalanche

BIP-44

# C-Chain
urn:mhda:nt:evm:ct:60:ci:0xa86a:dt:bip44:dp:m/44h/60h/0h/0/0

# X-Chain   https://subnets.avax.network/x-chain
# default filled: aa=secp256k1, af=hex, ap=X-avax
urn:mhda:nt:avm:ct:9000:ci:0x1:dt:bip44:dp:m/44h/9000h/0h/0/0
# Long
urn:mhda:nt:avm:ct:9000:ci:0x1:dt:bip44:dp:m/44h/9000h/0h/0/0:aa:secp256k1:af:hex:ap:X-avax

Root key (no derivation path)

# Short format
# default filled: dp=null, aa=secp256k1, af=hex, ap=0x
urn:mhda:nt:evm:ct:60:ci:0x1

# Long format
urn:mhda:nt:evm:ct:60:ci:0x1:aa:secp256k1:af:hex:ap:0x