malkhut: three-layer identifier architecture for cross-system asset identification
Layer 1 (canonical identity): symbol, base_asset, name, unified_symbol
(CCXT format), quote_currency
Layer 2 (cross-system): coingecko_id, cmc_id, blockchain, contract_address
Layer 3 (exchange mapping): exchanges tuple
All 13 pre-defined assets migrated with accurate CoinGecko IDs, CMC IDs,
blockchains, and contract addresses (ERC-20 tokens).
7 new query functions: get_asset_by_coingecko_id, get_asset_by_cmc_id,
get_assets_by_base_asset, get_assets_by_blockchain,
get_assets_by_unified_symbol.
33 new tests covering: Layer 1 identity, Layer 2 cross-system identifiers,
identifier query functions, identifier consistency (uniqueness, derivation),
exchange registry.
Total: 1189 tests, 47 files, all green.
Based on research: CCXT BASE/QUOTE is de facto standard, CoinGecko ID
most widely used in crypto-native, ISO 24165 DTI emerging, FIGI for
institutional.
1f709af6d1