Distributed ledger architechture

[prawn-cake]

We need to come up with an architecture of the ledger, including:

• [ ] We need simple p2p client
• [ ] We need a synchronization protocol
• [ ] We need a transactions protocol (create new transaction, validate others transactions, add a transaction to a block, add a block to a chain)
• [ ] Every client must sign the transactions it produces, i.e have private/public gpg keypair

[prawn-cake]

Etherium design rationale.