CREATE TABLE IF NOT EXISTS keys(
	key_id INTEGER PRIMARY KEY NOT NULL,
	key_public BLOB NOT NULL,
	key_private BLOB NOT NULL
);
PRAGMA foreign_keys=on;
CREATE TABLE IF NOT EXISTS coins(
	coin BLOB PRIMARY KEY NOT NULL,
	serial BLOB NOT NULL,
	coin_blind BLOB NOT NULL,
	valcom_blind BLOB NOT NULL,
	value INTEGER NOT NULL,
	token_id BLOB NOT NULL,
	witness BLOB NOT NULL,
	secret BLOB NOT NULL,
	is_spent BOOLEAN NOT NULL,
	nullifier BLOB NOT NULL
);