Opensea token id format decoded.

opensea_tokenId_decoded_easy.py

# Token Id (as given in Opensea)
id = 73424079983647210902572285069973579475843508985221180214989722260978404425729
print("Id  \t : ",id)

# Convert Id to Hexadecimal
str_id = str(hex(id))
print("Hex(id)  : ", str_id)
str_id = str_id[2:] # Removing 0x from Hex String stored

'''
 Each byte of plaintext is represented by 2 Hexa decimal
 ( 1 byte = 2 Hexa digits )
'''

# First 20 bytes represent maker address
maker = str_id [0 : 40]        # 20 bytes => 40 hexa digits
print("Maker  \t : ", hex(int(maker, 16)) ) 

# Next 7 bytes represent nft ID
nft_id = str_id [40 : 40+14]   # 7 bytes => 14 hexa digits
print("NFT id \t : ", int(nft_id, 16))

# Last 5 bytes represent Quantity / Supply of this Id 
qty = str_id [-10 : ]           # 5 bytes => 10 hexa digits
print("Quantity : ", int(qty, 16))



#---OUTPUT---#
# Id  	   :  73424079983647210902572285069973579475843508985221180214989722260978404425729
# Hex(id)  :  0xa2548e7ad6cee01eeb19d49bedb359aea3d8ad1d000000000000070000000001
# Maker    :  0xa2548e7ad6cee01eeb19d49bedb359aea3d8ad1d
# NFT id   :  7
# Quantity :  1