Well that is actually anoying i did a small sampling from the mempool pending TXs and I count only those with one input, one ouput and output value less than 600 satoshis, and more of the 80% of those match with this criteria.
Here is the code that i used was:
Code:
import sys
import json
import math
import time
import random
import requests
def round_up_to_decimals(number, decimals):
factor = 10 ** decimals
rounded_number = math.ceil(number * factor) / factor
return rounded_number
def get_tx(txid):
tx = None
try:
url = ""
if networkname=="bitcoin":
url = "https://mempool.space/api/tx/" + txid
elif networkname=="testnet":
url = "https://mempool.space/testnet/api/tx/" + txid
else:
print("Unknow network")
exit()
response = requests.get(url)
if response.status_code == 200:
tx = response.json()
return tx
else:
return tx
except Exception as e:
print(f"An error occurred: {e}")
return tx
def get_mempool_txids():
time.sleep(0.01)
txids = []
try:
url = ""
if networkname=="bitcoin":
url = "https://mempool.space/api/mempool/txids"
elif networkname=="testnet":
url = "https://mempool.space/testnet/api/mempool/txids"
else:
print("Unknow network")
exit()
response = requests.get(url)
if response.status_code == 200:
txids = response.json()
return txids
except Exception as e:
print(f"An error occurred: {e}")
return txids
networkname = "bitcoin"
print("Downloading mempool txids list")
txids = get_mempool_txids()
# Save in to file optional
#print("Saving file....")
#with open("mempooltxids.txt", "w") as file:
# file.writelines("%s\n" % txid for txid in txids)
if len(txids) == 0:
print("Error getting mempool TX")
print(f"Total TX on mempool: {len(txids)}")
dust_counter = 0
total_counter = 0
for i in range(0,1000):
txid = random.choice(txids)
tx = get_tx(txid)
if(tx is None):
print(f"Error")
dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,4))
print(f"\nTotal dust tx found {dust_counter} of {total_counter}: %{dust_percentage}")
exit()
if(len(tx['vin']) == 1 and len(tx['vout']) == 1 and tx['vout'][0]['value'] < 600):
dust_counter += 1
#txids.remove(txid)
total_counter += 1
print(".",end="")
sys.stdout.flush()
dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,2))
print(f"\nTotal dust txs found {dust_counter} of {total_counter}: %{dust_percentage}")
import json
import math
import time
import random
import requests
def round_up_to_decimals(number, decimals):
factor = 10 ** decimals
rounded_number = math.ceil(number * factor) / factor
return rounded_number
def get_tx(txid):
tx = None
try:
url = ""
if networkname=="bitcoin":
url = "https://mempool.space/api/tx/" + txid
elif networkname=="testnet":
url = "https://mempool.space/testnet/api/tx/" + txid
else:
print("Unknow network")
exit()
response = requests.get(url)
if response.status_code == 200:
tx = response.json()
return tx
else:
return tx
except Exception as e:
print(f"An error occurred: {e}")
return tx
def get_mempool_txids():
time.sleep(0.01)
txids = []
try:
url = ""
if networkname=="bitcoin":
url = "https://mempool.space/api/mempool/txids"
elif networkname=="testnet":
url = "https://mempool.space/testnet/api/mempool/txids"
else:
print("Unknow network")
exit()
response = requests.get(url)
if response.status_code == 200:
txids = response.json()
return txids
except Exception as e:
print(f"An error occurred: {e}")
return txids
networkname = "bitcoin"
print("Downloading mempool txids list")
txids = get_mempool_txids()
# Save in to file optional
#print("Saving file....")
#with open("mempooltxids.txt", "w") as file:
# file.writelines("%s\n" % txid for txid in txids)
if len(txids) == 0:
print("Error getting mempool TX")
print(f"Total TX on mempool: {len(txids)}")
dust_counter = 0
total_counter = 0
for i in range(0,1000):
txid = random.choice(txids)
tx = get_tx(txid)
if(tx is None):
print(f"Error")
dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,4))
print(f"\nTotal dust tx found {dust_counter} of {total_counter}: %{dust_percentage}")
exit()
if(len(tx['vin']) == 1 and len(tx['vout']) == 1 and tx['vout'][0]['value'] < 600):
dust_counter += 1
#txids.remove(txid)
total_counter += 1
print(".",end="")
sys.stdout.flush()
dust_percentage = 100 * (round_up_to_decimals(dust_counter/total_counter,2))
print(f"\nTotal dust txs found {dust_counter} of {total_counter}: %{dust_percentage}")
Output:
Code:
albertobsd:~$ python3 count_dust_tx_mempool.py
Downloading mempool txids list
Saving file....
Total TX on mempool: 564411
...
Total dust txs found 855 of 1000: %85.5
Downloading mempool txids list
Saving file....
Total TX on mempool: 564411
...
Total dust txs found 855 of 1000: %85.5
According to the Mempool.space API documentation:
Quote
GET Mempool Transaction IDs
Get the full list of txids in the mempool as an array. The order of the txids is arbitrary and does not match bitcoind.
Get the full list of txids in the mempool as an array. The order of the txids is arbitrary and does not match bitcoind.
I use random choice in python
Quote
The choice() method returns a randomly selected element from the specified sequence.
So in general this problem may get worse in the future if the ordinals don't stop their SPAM
