Coinspeaker New Shafts Will Raise Value of Assets Behind Maya Preferred 223 to $34,000 Per CoinMaya Preferred 223 (MAPR), a stablecoin backed with gold and silver mines located in Mexico, has announced a reconsolidation of the assets behind the coin.New Shafts Will Raise Value of Assets Behind Maya Preferred 223 to $34,000 Per Coin