The document discusses IBM's blockchain technology and offerings. It provides information on an upcoming IBM Summit info session on blockchain. It defines blockchain as a shared, immutable ledger for recording transactions and tracking assets across a business network. It describes key aspects of blockchain like consensus, provenance, immutability and finality. It lists some IBM blockchain products and solutions. It also provides context on blockchain deals and use cases in industries like energy, food and consumer packaged goods. It invites attendees to ask questions at the info session or online.