TEZOS

TEZOS ?

Decentralized Blockchain: Governance on chain

No Fork: Voting on improvement 

Delagete Proof of Stake

• Virtual "miner" (Backer)
• Communities delegate Backers
• Formal Verification
• Ocam and Michelson

Alphanet:

https://tezos.gitlab.io/tezos/introduction/alphanet.html#alphanet

TEZOS: policy

Possibility of producing new "amendments"

• new policy of the governance
• new voting specifications
• smart contract parameters
• add a block to chain

VOTE

voting on large majority (80%)

Only token holder can vote
It may be possible to delegate the vote

TEZOS:  bakeing

Writing the chain

1. every clock (60'') a block is proposed
2. a random virtual miner is selected among all bakers
3. 32 random bakers are selected to validate the PoS
4. with 17 (or more) positive votes a block is correct
5. only after 4096 blocks (1 cycle) the XTZ are unbounded and all transactions are on the chain

Coin: XTZ... or Tezis

• bounding 10000 XTZ each node can have 1 roll.
• to be a Baker you need at least 1 roll.

TEZOS: bakeing 2

1. every cycle all proposals are gathered
2. each proposal is voted by supermajority (80%)
3. all the pased proposals are implemented in a soft-fork net (test) for 48h
4. after the test period there is another supermajority vote on the soft-fork net governance
5. if the test pass, the new governance will be implemented on live network 

to Propose an amendment

TEZOS: example

A live Example

https://tezsure.com/

TezSure is a platform built on the tezos blockchain system.

It provides personalized insurance solutions with the benefits of the features of the blockchain.

At the same time, it will function in a community-driven insurance pool with no third parties.

TEZOS: configurations !

The net:

https://tezos.gitlab.io/tezos/index.html

Main configuration (json file):

• net
• rpc
• log
• shell
• data-dir

TEZOS: configurations [net]

•     "expected-proof-of-work" ( expected maximum difficult )
•     "bootstrap-peers": (list of host "peers" of the node)
•     "private-mode":  (comunicates to the peers)
•     "limits": 
  • "authentication-timeout": (in seconds)
  • "min-connections": (#n need to be connected)
  •  "expected-connections": (work limit on #n)
  • "max-connections": (superior limit on #n)
  • "backlog": (max number of pending connections)
  • "max-incoming-connections": (number of connections)
  • "max-download-speed": (in kib/s)
  • "max-upload-speed": (in kib/s)
  • "read-buffer-size": (in bit)

TEZOS: configurations [rpc]

•     "listen-addr" (port of the host to call rpc)
•     "cors-origin" (call params)
•     "cors-headers" (call params)
•     "crt": (certification for the node)
•     "key":  (certification for the node)

TEZOS: configurations [shel]

• "bootstrap_threshold" (number of connected peer to be considerated connected and active)

TEZOS: configurations [log]

•     "output" (host or location where to put the log file)
•     "level" (level of error or note)
•     "rules" (limit the type of errors shown)
•     "template" (format of the log file)

TEZOS 

/end

Thanks for your attention.