Various embodiments each include at least one of systems, methods, software, and data structures for automated inventory management including blockchain smart contracting. One such embodiment in the form of a method includes maintaining a database of products available for purchase from vendors, receiving a data representation of a purchase request for a desired product from a buying entity, and finding a match between the purchase request and vendor of the desired product. This method may then generate a data representation of a contract between the buying entity and the vendor of the match followed by generating a hash of the data representation of the contract and adding the data representation of the contract and the generated hash to a blockchain data structure. A copy of the block chain data structure may then be stored and forwarded to at least each of the contracting parties.