#0
OP_RETURN
0.00000000 BSV
jLÿ return {'error': 'Some data is required to be stored'}
change_address=OP_RETURN_bitcoin_cmd('getrawchangeaddress', testnet)
# Calculate amounts and choose first inputs to use
output_amount=OP_RETURN_BTC_FEE*int((data_len+OP_RETURN_MAX_BYTES-1)/OP
https://whatsonchain.com/tx/c9c14eec4405c4eb16c1d9dfea9865d02062eae237c0c98beada0439b7bda12b