System Addresses

System addresses are addresses owned by the platform itself (hot wallets for blockchain top-up and withdrawal, technical addresses for per-client accounting on UTXO-less chains, commission/reserve addresses, etc.). They are linked to system wallets (-1, -4, -5, -15, -101..-104, …) and are not exposed to end users.

Single sources of truth:

• System Wallets concept — what each system wallet means and its numeric id.
• System Addresses admin — how to add and manage on-chain system addresses, address-type table per network.
• Wallets and Addresses admin — WalletAddresses table, hot wallet vs technical addresses.