1.consensus in blockchain determines the truth in the sense that whatever information that is entered into the blockchain has been independently verified and validated to be true by individuals who do not have any incentive to cheat.
2. Consensus is different because in a central database truth is determined by trusting the central authority or individual that controls the database. While in blockchain, everything is trustless. No need to trust anyone because information can be verified and no central control and no bad actor can manipulate the entire distributed ledger of the blockchain.
- What does it mean when we say that in blockchain, consensus determine the truth? The transaction is only accepted if the network validates this transacion (agrees it makes sense).
- How is this different from how truth is determined in a central database? In a central database there is an elemenet of trust.
1.- The veracity of something is determined by a general agreement made by individuals which are incentivized to play by the rules.
2.- The truth is determined by a majority of individuals instead of a major power.
- What does it mean when we say that in blockchain, consensus determine the truth?
Consensus is having all parties agree on an outcome. Blockchain requires verification of transactions and has financial incentives for being honest.
- How is this different from how truth is determined in a central database?
Truth canât be determined in a central database. You have to trust what they say is true. Blockchain removes the need for trust as transactions are verified.
- What does it mean when we say that in blockchain, consensus determine the truth?
The validation on consensus means several parts determine what is the truth.
- How is this different from how truth is determined in a central database?
On Blockchain the truth is determined by consensus in a decentralized way. In a central databse, there is a central authority that decides the truth.
1.The users of the networks or the general consensus is always in agreement of the block chain network.
Meaning the general public decides the truth of a transaction.
2.In a central database, the truth is determine by the people in charge only,meaning the people with special authority can excess and apply changes to the data without the knowing the of the public. However, for block chain, no authorities exist. everyone is able to verify the data or transaction.
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Different actors - more than 50% in a network of nodes have to agree that something is true - the majority of nodes determines if some step/ transaction in the process is true/ agreed upon and therefor be integrated in the blockchain.
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In a central database the owner of the database can determine and alter the truth in processes without the agreement of the majority of nodes. The nodes in the network are incentivised to to act according to the truth. Once a step/ process is included in the blockchain under consensus of the nodes, it is practically impossible to alter this information in the future.
1.The consensus is agreed on by a group of people who are all incentivised, to tell the truth.
2- The truth in a central database is decided by the person or group controlling it.
Well done, Chrismop. I love the jargon free answer
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It means that the collectively of people decide and agreed of a transaction is legit
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In a normal (central) database you have persons that decide the truth. So the single person has control over the network and can change/manipulate things. In a blockchain (ledger) you have a creat collectivity of people that decides if a transaction is legit.
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Because all of the nodes have to be in agreement that what is being added to the blockchain is true.
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A central database gives the opportunity to change the history within the database, which can in turn be untruthful.
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What does it mean when we say that in blockchain, consensus determine the truth?
We mean that the truth of a valid or invalid transaction is determined by verifying the transaction by the majority of nodes in the network -
How is this different from how truth is determined in a central database?
Blockchains are different from how truth is determined in a central database because they are decided collectively between all of the nodes in the network whereas in a central database it is decided on by a central authority.
1 = on a blockchain the data or transaction must be verified by all nodes. If the data is found to be false then the transaction does not go through.
2 = in a central database, a few entities can manipulate the data, and that becomes the truth that is assumed. In decentralized database there are many nodes that need to reach consensus and verify the data.
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A blockchain being a decentralized database does not work on corruptible human trust and at the same time has many incentivized parties that double check if a certain entry or transaction into the blockchain is legitimate or not thus helping in determining the truth.
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In a central database truth can be determined without coming to a consensus between all parties involved by corruption and misusing power. Whereas a consensus in a blockchain can only be achieved after all the parties have double checked the facts.
All the nodes must agree or they will fork
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Only true transaction data will be confirmed on the blockchain through the consensus of the majority of miners, attempts to add false data will be rejected because consensus will occur for that attempt.
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On a centralized database we trust that the organization managing the database will be honest and do a good job
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Consensus finds the truth by: the multiple computers that can fact check any transaction when it goes through. If all computers agree that a transaction is valid then it gets added to the blockchain, if it is determined false because the network canât agree that a transaction is valid then it is found to be false and disregarded.
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It is different because in a centralized database, you are relying on someone to be telling the truth so the data can be easily manipulated if the âtrustedâ source gives false information.
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What does it mean when we say that in blockchain, consensus determine the truth?
Consensus is arrived at by verifying the data/transaction against a copy of the public ledger across a network of computers (nodes). If the transaction is verified as true, it is added to the blockchain. If the transaction is not verified and is false, the transaction is disregarded. -
How is this different from how truth is determined in a central database?
In a centralized database, data can be manipulated and/or deleted by one or several individuals. The truth is only as good as our trust in the individual or organization that controls the data. There is no transparency in a centralized database.
1- Several entenies detemine if a transaction is valid.
2-A central Database is less trustworthy because it can´t be checked by several parties.
1.What does it mean when we say that in blockchain, consensus determine the truth?
- In crypto currencies you have this network of PCâs and they all need to agree on what is true and not true. They all have a copy of the public ledger and when there is a pending transaction, they all need to deicide if this transaction should be put in the blockchain or not.
2. How is this different from how truth is determined in a central database?
- The DB is decentralized, the verification of the transaction is devided among all the computers in the network and theyâre all incentivized to tell the truth.The key thing that consensus provides is that itâs built on top of incentives. This is removing the trust issue between different parties.