#0
OP_RETURN
0.00000000 BSV
jLÿvalid'}
# Collect and return the results
results=[]
for height in heights:
if height==0:
txids=OP_RETURN_list_mempool_txns(testnet) # if mempool, only get list for now (to save RPC calls)
txns=None
else:
txns=OP_RETURN_get_block_txns(
https://whatsonchain.com/tx/4b00a2293066cf96f47ae0a24c2fc85eb493556e5cf7ffcb3e0bed02955ae9ef