Hourglass of Transacting:
Perhaps the waist of the hourglass - the "generative" point of agreement among participants - is an object model for expressing records and relationships.

• Alice1 Alice2 Alice3 Alice4 - Acme1 Acme2 Acme3 Acme4 - Advisor1 Advisor2 Advisor3 Advisor4 - Agency1 Agency2 Agency3 Agency 4
• Selling, Trading, Supply Chains, Banking, Medical, Permits, Organization, Accounting, Taxes, Reporting
• Find, Discuss, Specify, Agree, Deliver, Pay, Notify, Dispute, Resolve, Rate
• Browser, App, Editor, IDE, Transaction System, MS Word
• Create Read Update Delete Render   Share
• Object Model
• files, JSON, graph, XML
• JavaScript or other parser
• blockchains, git, IPFS, other means of sharing
• Solidity, Bitcoin, and other execution of instructions

Zittrain, Jonathan, The Internet and How to Stop It, page 68