switch (addrver) {
		case   0:  // Bitcoin pubkey hash
		case  23:  // Primecoin pubkey hash
		case 111:  // Testnet pubkey hash
			if (outsz < (rv = 25))
				return rv;
			cout[ 0] = 0x76;  // OP_DUP
			cout[ 1] = 0xa9;  // OP_HASH160
			cout[ 2] = 0x14;  // push 20 bytes
			memcpy(&cout[3], &addrbin[1], 20);
			cout[23] = 0x88;  // OP_EQUALVERIFY
			cout[24] = 0xac;  // OP_CHECKSIG
			return rv;
		case   5:  // Bitcoin script hash
		case  83:  // Primecoin script hash
		case 196:  // Testnet script hash
			if (outsz < (rv = 23))
				return rv;
			cout[ 0] = 0xa9;  // OP_HASH160