When to use

For most use cases, consider using the log-based ethereum_erc721_transfers instead of this table.

This storage-based table tracks changes to ownership variables in storage for ERC721 contracts. Our ERC721 classification is permissive, in that it will also include contracts that include extensions. However, some extensions like ERC721A and ERC721Enumerable include differences in how ownership is tracked in storage, and this table doesn't currently include those changes.

You may want to use this table if any of the following are true:

You're working on a fixed set of contracts and find that all of those contracts are covered by this table.
You're interested in non-standard ERC721s where ownership can change without a Transfer event being emitted.

Schema

Column Name	Data Type
txn_hash	string
block_number	bigDecimal
block_timestamp	bigDecimal
token_address	string
token_name	string
token_symbol	string
token_id	bigDecimal
owner_before	string
owner_after	string

Source

This table was built in sim's Ethereum ERC721 Owner Changes canvas.