There's I guy called Ian Grigg who was involved in the early cypherpunks of the 90s ho is very knowledgeable about Ricardian contracts, which apparently are more expressive form of contract than smart contracts. Here is a podcast of his that the devs of Hashgraph might want to listen to. He's now working on the EOS blockchain project. https://soundcloud.com/epicenterbitcoin/eb-151

Also here https://www.youtube.com/watch?v=wokvO1ptE1k

and more here https://www.youtube.com/watch?v=UC6RYwYPnpU

In this last video he talks about the use of messaging rather than state reach consensus in a system. It seems similar to gossip approach in a way. He has a paper called Financial Cryptography in 7 Layers. He says that many projects fail because they don't take into account all the various levels of knowledge needed for a successful decentralised system. Might be worth looking into also. http://iang.org/papers/fc7.html https://link.springer.com/chapter/10.1007/3-540-45472-1_23

EOS Meetup in HK next Friday

https://www.eventbrite.com/e/eosio-hong-kong-meet-up-tickets-42667012182?aff=es2

"La citación también solicita cualquier comunicación con el criptógrafo financiero Ian Grigg, el director ejecutivo del Centro para el Ciberespacio Estratégico + Ciencia de la Seguridad, Richard Zaluski, y el inversor de Bitcoin Roger Ver, entre otros."

https://es.cointelegraph.com/news/bitcoin-pioneer-jeff-garzik-subpoenaed-in-4-bln-lawsuit-against-craig-wright

Publicado el 3 oct. 2016 https://www.youtube.com/watch?v=wokvO1ptE1k

Before 2013 few people paid attention to Bitcoin and blockchain, yet even back in the 1990s a vibrant group of prioneers pursued the vision of financial cryptography and digital cash. One of these was financial cryptographer and software developer Ian Grigg, who today works as an architecture consultant for R3.

Grigg joined us for a discussion of the history of the digital cash, Bitcoin and his work on Ricardian Contracts, which foreshadowed today's smart contracts.

Topics covered included:

- The origin story of financial cryptography

- DigiCash and the startup scene around it in the 1990s

- Ricardian Contracts and why contracts are central to digital assets

- Ricardian Contracts vs blockchain Links mentioned in this episode:

- Ricardian Contract Paper http://bit.ly/2cOnQsU

- Financial Cryptography Website http://bit.ly/2dM4men

- Financial Cryptography in 7 Layers http://bit.ly/2d9GRXT

- R3CEV http://bit.ly/2dVJiRX

- Brown, Carlyle, Grigg & Hearn: Corda - An Introduction http://bit.ly/2dmtPLP

Financial Cryptography News
https://t.me/joinchat/AAAAAE6RILfIsLBzcK_eGw