2.In a central database one sole entity is in control of their own data making it easy to manipulate what is released to the public. This is a less transparent form of a database where the public has to hope that what is being released is actually true.
2)In a central database, truth can be altered or compromised. What happens between two parts of the network is usually no one elseās problem. Different parts or devices of the network donāt need any approval from other parts of that same network or chain.
What does it mean when we say that in blockchain, consensus determine the truth?
the various computers have access to the blockchain and must verify the transaction collectively. If there is a discrepancy then the transaction isnāt added to the blockchain. All must agree for it the transaction to become truth.
How is this different from how truth is determined in a central database?
Truth isnāt verified through a central database. It is achieved through trust agreements of all the parties involved.
2.There is only one person or entity who decided the truth, so it can change anything without being public.
What does it mean when we say that in blockchain, consensus determine the truth?
Whether POW or POS or the DPOW etc. Consensus is the means of verifying the transaction is legitimate via the network, nodes, miners, stakers, etc. It allows a immediate query within the network to ensure what is being included on the chain is valid and within the limits āprogrammedā for the use case.
How is this different from how truth is determined in a central database?
Traditional Databases are contained at a singular (most of the time) point of access unlike blockchain. This Single POA can be corrupted, hacked, overwritten, altered, etc. to include unverified, faulty, or even maliciously inputted information, with Zero Verification.
Since Blockchain is developed with the idea that decentralization, not 1 but a majority, etc. should determine truth it is harder or costly, to inject false transactions or information, to not just 1 but, all the copies of the chain simultaneously.
Its easier to tell a lie to one entity than repeat it and get it right to many people!
Consensus determines the truth by having the Nodes of the Blockchain verify the validity of a transaction and whether it should be approved and added to the database or denied.
This is different from a central database because it removes the need for trust in a central authority that has control over the database and the ability to manipulate its transactions.
All of the nodes in the blockchain network must achieve consensus that a new transaction is accurate and makes sense (the funds were available, their origin can be traced etc.) before it can be entered into the blockchain.
In a central database, ātruthā can be manipulated and changed by the ācentralā controller of the database. In the blockchain, you canāt change things that have occurred because the network will reject the change, just as it will reject ābadā transactions coming in.
All transactions on a blockchain are verified by different nodes on that particular network. Which means everyone is on the same page.
trust, with a centralized database, is required. Causing no real ability to verify information provided.
What does it mean when we say that in blockchain, consensus determine the truth?
It means that in order for a transaction to be determined as true, it first needs to be approved by all the nodes involved in the network.
How is this different from how truth is determined in a central database?
In a central database we need to trust that the data given is true.
1 - It means that the Truth is determined by multiple different computers verifying the information given.
2 - This is different because in a central database, the ones who control the database have the power to alter it to their liking.
Consensus determines the truth in blockchain because multiple parties are verifying the information they are receiving is valid, so that they can add that transaction to the blockchain.
Central data bases truth is determined typically by one party or person where as blockchain multiple parties votes on whether the transaction is valid. This means its harder to cheat and parties are rewarded for being honest.
What does it mean when we say that in blockchain, consensus determines the truth?
Multiple nodes on the network agree by consensus, with each node financially incentivized to verify the given information accurately. This determines what the truth of the situation is by verification, without having to trust just one source or gatekeeper to provide accurate data.
How is this different from how truth is determined in a central database? In a central database, there is not necessarily data verification. Rather, one central source provides information which may be faulty or inaccurate and therefore, not true.
The entire network of computer nodes has to come to an agreement to verify the transaction on the blockchain, making it nearly impossible to not work by rules.
centralised databases can be altered since there is a central authority that maintains the database once again relying heavily on trust whilst blockchain technology is decentralised and trustless
Every transaction must be verified by whole network, if all of them verify it then it becomes truth and added to ledger
In centralized database one individual can make changes with his own version of truth
-What does it mean when we say that in blockchain, consensus determine the truth?
consensus determine the truth due to the fact that all choices are made from the agreement of multiple parties in the network
-How is this different from how truth is determined in a central database?
differentiates through decentralization. In a central database all the decisions are made by one single party leading to corrupted systems