coin_chains
library
Classes
Addr
AggregatedKey
BIP-327 MuSig2 key aggregation: combines n public keys into one for
n-of-n Schnorr multi-signing.
AssemblerInput
Metadata for a UTXO being spent.
BalanceInfo
BcmrIdentity
BCMR identity: metadata (name, symbol, icon, decimals) for a CashToken category.
BcmrRegistry
BCMR registry document containing token identity entries.
Bech32
Bip44Paths
Path pattern: m / purpose' / coin_type' / account'
Bip69Ordering
BIP-69: deterministic ordering to prevent wallet fingerprinting.
CashToken
A CashToken attached to a UTXO. Can carry fungible amounts, an NFT, or both.
Identified by a 32-byte category ID (genesis txid).
Chain
ChainParams
ChainRegistry
CodecGate
CoinPicker
CoinSelection
CryptoVault
CurveGate
Implementations may use pure Dart math or native FFI/WASM bindings.
Denomination
DerivedKey
DerivedKeyMaterial
DerivedPublicKey
DerivedSecretKey
DigestGate
EcdsaSig
Ed25519Gate
Pluggable backend for Ed25519 curve operations (Monero, etc.).
All inputs/outputs are byte arrays so native backends avoid BigInt conversion.
ElectrumLink
ExplorerLink
ExTx
FeeEstimator
ForkedBuilder
Transaction builder with SIGHASH_FORKID support for BCH / BSV.
ForkedHasher
BIP-143-like sighash with the FORKID bit set for replay protection
after the BCH/BSV chain split.
ForkedTxAssembler
TxAssembler subclass for SIGHASH_FORKID chains (BCH / BSV).
FundingPlan <T >
HdAccount
An account node m/purpose'/coinType'/account' bound to a ChainParams
and a DerivationScheme .
HdWallet
A hierarchical-deterministic wallet root.
InputSig
DER-encoded ECDSA sig + sighash byte.
KeyForge
LegacyAddr
LegacyInput
LegacySigHasher
Legacy sighash (pre-segwit).
Locking
MessageSig
Mnemonic
MultiSig
M-of-N multisig: OP_M <keys...> OP_N OP_CHECKMULTISIG
MwebAddr
A Litecoin MWEB ("Mimblewimble Extension Block") stealth address.
NoncePair
A pair of public nonce points (33-byte compressed each).
NonceSession
BIP-327 MuSig2 two-round nonce session: generate nonce pairs, exchange,
aggregate, then compute partial signatures.
Op
OpCode
Outpoint
P2pkhAddr
P2pkhInput
scriptSig = sig, pubkey
P2shAddr
P2shMultisigInput
P2wpkhAddr
P2wpkhInput
witness = sig, pubkey
P2wshAddr
PartialSig
One participant's partial signature in a MuSig2 session.
PartialTx
Version-agnostic PSBT facade for constructing, inspecting, and
finalizing partially signed transactions.
PartialTxV1
BIP-174 PSBT version 0 implementation.
PartialTxV2
BIP-370 PSBT version 2 implementation. Per-input and per-output fields
live directly in their own sections instead of inside a global unsigned tx.
PaymentAddress
PaymentCode
80-byte payload:
PayToPubKeyHash
P2PKH: OP_DUP OP_HASH160 <20> OP_EQUALVERIFY OP_CHECKSIG
PayToScriptHash
P2SH: OP_HASH160 <20> OP_EQUAL
PayToTaproot
P2TR: OP_1 <32>
PayToWitness
Generic witness program (version 0-16).
PayToWitnessPubKey
P2WPKH: OP_0 <20>
PayToWitnessScript
P2WSH: OP_0 <32>
PsbtCodec
Low-level PSBT wire-format codec (BIP-174 / BIP-370).
PsbtKeyValue
PsbtSigner
Computes sighashes and attaches partial signatures to a PartialTx .
PublicKey
PushData
PushDataMatcher
Matches any push of a given size, for pattern matching against scripts.
RawInput
RawLocking
Rbf
BIP-125 Replace-By-Fee helpers. RBF is signaled when any input
has sequence < 0xfffffffe.
RecoverableEcdsaSig
SchnorrInputSig
Schnorr sig: 64 bytes, or 65 with non-default sighash.
SchnorrSig
Script
ScriptOp
SecretKey
SecretPoint
SegwitAddr
SigHasher
SigHashType
SpendableUtxo
TapBranch
TapLeaf
Taproot
TaprootAddr
Taproot address (bech32m, witness v1).
TaprootKeyInput
Key-path spend; witness = schnorr_sig.
TaprootScriptInput
Script-path spend; witness = ...stack, script, controlBlock.
TaprootSigHasher
BIP-341 taproot sighash.
TapTree
Tx
TxAssembler
High-level transaction builder that takes UTXOs, outputs, and a chain
config to produce a fully-signed Tx .
TxBody
Components of a transaction body (everything after the version word),
shared by Tx.fromReader and ExTx.fromReader .
TxInfo
TxInput
TxOutput
TxSizeEstimate
UnknownWitnessAddr
For witness versions 2-16 (future soft forks).
UtxoMethods
Common UTXO query interface backed by Electrum or a block explorer.
UtxoRef
VaultKeeper
Call initialize once before using any crypto operations.
Defaults to pure Dart backends; register FFI backends with register
or registerAsync before calling initialize .
WatchOnlyTracker
Tracks UTXOs without private keys -- for balance monitoring
or building transactions before offline signing.
WatchUtxo
WireMeasure
Counts serialized size without allocating.
WireReader
WireWriter
WitnessInput
WitnessSigHasher
BIP-143 witness v0 sighash.
Functions
base58Decode (String encoded → Uint8List
base58Encode (Uint8List payload → String
blindingMask (Uint8List ecdhSecret , Uint8List outpoint → Uint8List
blindPayload ({required Uint8List payload , required Uint8List mask → Uint8List
XOR-blinds (or unblinds) a payment code payload.
bytesEqual (Uint8List a , Uint8List b → bool
checkInt32 (int i → void
checkUint16 (int i → void
checkUint32 (int i → void
checkUint64 (BigInt i → void
checkUint8 (int i → void
compareBytes (Uint8List a , Uint8List b → int
concatBytes (List <Uint8List parts → Uint8List
copyCheckBytes (Uint8List bytes , int length , [String name = 'bytes' → Uint8List
generateSecureBytes (int n → Uint8List
hash160 (Uint8List data → Uint8List
hexDecode (String hex → Uint8List
Accepts optional "0x" prefix.
hexEncode (Uint8List bytes → String
hmacSha256 (Uint8List key , Uint8List data → Uint8List
hmacSha512 (Uint8List key , Uint8List data → Uint8List
initCoin ()
→ Future <void >
keccak256 (Uint8List data → Uint8List
ripemd160 (Uint8List data → Uint8List
sha256 (Uint8List data → Uint8List
sha256d (Uint8List data → Uint8List
sha512 (Uint8List data → Uint8List
taggedHash (String tag , Uint8List data → Uint8List
wifDecode (String wif , Chain chain → (Uint8List bool
wifEncode (Uint8List privKey , Chain chain , {bool compressed = true → String
