class 1.txt

type struct BlockDetails

 {
    Header []String 
    Body   []String
 }

Token for Land Registry:
------------------------

Fungible tokens - Each and evry token is same and is of same value

 CBDC - Central bank digital curreny - $ USD - 1000000 - I supply - 
 ERC20 - Ethereum tokens

 token ERC20 {
       Supply()
       Transfer()
       Ownsership()
       Destroy()
       BalanceEnq()
    }

 Token -1M, validate who is the owner for 99th token 
 
 Get owner of 99th token - Ownership(uniqueid 99)
                     - Alice
                     - Bob  

Non Fungible Tokens - ERC721

houseunique id - ASGFC765

{
  owner Alice 1970
        Bob   1980
        Dan   2000 
}

 4000 node -> 


 (usera, userb, 10$, banka, bankb) ------- Ideal transaction payload
 hashing is way of securing your data to store in unreadable format

 sha256 -- input - (usera, userb, 10$, banka, bankb)     
        -- output - j87687hjnkjnk098098098n8798798jbjkb  ---> blockchain
 Hash is always one way ---->










Public: bitcoin, ethereum etc
------ 
 1. To connect u need only wallet id (hexadecimal unique address)
 2. Identity is anonymus
 3. anyone can read/write data from ledger



Permissioned: etnetrprise like Hyperledger, R3 Corda ----> Banks - MOney lending/borrowing system --- sbi, hdfc, icici 
-------------
 1. u need to provide ur identity (public key, Digital certificates)
 2. identity is revelaed
 3. only actors who are eligible can connect to network


Private: (Quorum, Binance)
---------