Bitcoin whitepaper : A Peer-to-Peer Electronic Cash System
https://bitcoin.org/bitcoin.pdfTHE CAKE IS REAL

A SPECIAL SURPRISE PRESENT TO GO ALONG WITH THE CAKE
https://news.bitcoin.com/gavin-andresen-drops-a-new-concept-on-github-for-bitcoin-cash/
The Developer Who Was Given the BTC Codebase Permissions from Satoshi Offers an Idea for BCH Network Gavin Andresen Drops A New Concept On Github for Bitcoin CashGavin Andresen has been lurking around Github for the past twenty-seven days, and on the second day of the new year, the developer contributed an idea for the BCH network. The concept Andresen called Half-baked thoughts exploring a different way of implementing a fully-validating BCH node, is an idea on shifting the storage of full transaction data to wallets. The developer explains the concept is to let every node in the new network store a bit-vector for every block which can be highly compressible even for gigabyte-sized blocks.

The bitcoin cash community seems elated that Andresen has contributed a new idea for the BCH network. On enthusiast on ther/btc Reddit forum writes,
this is the first official confirmation that Gavin is building for BCH, unless Im mistaken. Many BCH supporters recollected the Tweet Andresen published this past November stating;
Bitcoin Cash is what I started working on in 2010: a store of value AND means of exchange