The data is organized in 32 files: collection_metadata.txt stores basic information about each collection that was analyzed. The graph data of the collection is stored in a file named as the nickname of the collection (slug column in collection_metadata.txt). The most important columns/properties are: rank, slug – nickname, creation date, address, and volume data, ... 15 files reporting NFT ownership transfer, the names corresponding to the nicknames of the collections in collection_metadata.txt. 15 files with graph data, the names correspond to the nicknames of the collections in collection_metadata.txt. Each file gives the address linkage graph of one of the top 15 collections according to monetary volume on Opensea marketplace, computed as presented in methodology, exclusively on Ethereum blockchain.