ERC721_CHECKER is a tool designed to detect new addresses created by ERC721 in an EVM block

The checker.py function loops through an array of ERC721 standard functions encoded in keccack 256 which correspond to the new creation contract in the identified block

# list of standard function for ERC721 token encode in keccak2563
ERC721_KeyWord = [
    "70a08231",  # balanceOf(uint256)
    "6352211e",  # ownerOf(uint256)
    "42842e0",  # safeTransferFrom(address,address,uint256)
    "b88d4fde",  # safeTransferFrom(address,address,uint256,bytes)
    "23b872dd",  # transferFrom(address,address,uint256)
    "095ea7b3",  # approve(address,uint256)
    "081812fc",  # getApprove(uint256)
    "a22cb465",  # setApprovalForAll(address,bool)
    "e985e9c5",  # isApprovedForAll(address,address)
    "ddf252ad",  # Transfer(address,address,uint256)
    "8c5be1e5",  # Approval(address,address,uint256)
    "17307eab",  # ApprovalForAll(address,address,bool)
    "c87b56dd",  # tokenURI(uint256)
    "2f745c59",  # tokenOfOwnerByIndex(address,uint256)
]

Installation

python3 -m pip install -r requirements.txt
python3 -m pip install -r requirements-dev.txt

USAGE

add infura token to .env file

python3 checker.py --block 13821429

output

fetching for block 13821429
list of ERC721 is ['0xD16bdCCAe06DFD701a59103446A17e22e9ca0eF0']
['0xD16bdCCAe06DFD701a59103446A17e22e9ca0eF0']

Test

pytest