Crate kobe_spark 

Spark protocol (Bitcoin L2) wallet utilities for Kobe.

Implements the Spark identity-key derivation and Bech32m address encoding from a unified kobe_primitives::Wallet:

• Derivation path: m/8797555'/{account}'/0' — hardened BIP-32 secp256k1. The purpose 8797555 is the Spark-specific constant (SHA-256("spark") truncated).
• Address: spark1… (Mainnet), sparkt1… (Testnet), sparks1… (Signet), sparkrt1… (Regtest), sparkl1… (Local) — Bech32m-encoded compressed identity public key wrapped in a minimal protobuf header.

Example

use kobe_primitives::Wallet;
use kobe_spark::{Deriver, Network};

let wallet = Wallet::from_mnemonic(
    "abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon abandon about",
    None,
)?;
let account = Deriver::with_network(&wallet, Network::Mainnet).derive(0)?;
assert!(account.address().starts_with("spark1"));

Structs

DerivedAccount

A derived HD account — unified across all chains.

Deriver

Spark address deriver from a unified wallet seed.

Enums

DeriveError

Errors produced by HD derivation, mnemonic handling, and address encoding.

DerivedPublicKey

Strongly typed public key emitted by an HD derivation.

Network

Spark protocol networks, each bound to a distinct Bech32 HRP.

Constants

SPARK_PURPOSE

Spark-specific BIP-32 purpose.