1. Not Reproducible
Each block is like a ledger, containing different passwords. The electronic currency in it is composed of a set of unique passwords, which can also be understood as the uniqueness of the blockchain.
2. Decentralization
When a transaction occurs, a message is sent to all participants, authenticated by computer cross-computation, rather than relying on an authority.
3. Immutable
After the authentication is completed, the transaction will take effect and cannot be revoked, which can also be understood as non-tampering.
4. Transparent and open
The "ledger" generated by the transaction is linked to other ledgers, the details of the transaction are recorded, and anyone can verify the transaction.
So back to Xiaoli's property certificate dispute just now, she only needs her father to write a property certificate, generate a PDF file, and send it to the blockchain to generate a "symbol plus number", which we can understand as a private key , and inform Xiaoli about this "symbol plus number". In case of a real estate dispute, it does not
need the approval of her father or other notary institutions. We only need Xiaoli to hold this "symbol plus number", and the system will It automatically recognizes this "symbol plus number". If it matches the "symbol plus number" left by her father, it proves that Xiao Li's real estate certificate is the real
estate simple.