Smart contracts of ".ton" zone.
nft-collection.fc - DNS resolver and domains minter.
Implements NFT collection interface with offchain NFT collection metadata.
Item index is sha256 hash of domain name and is out of order (get_collection_data always return next_item_index = -1).
nft-item.fc - Domain.
Implements editable NFT item interface with onchain NFT metadata.
Auction functionality is built into the domain item.