- What does it when we say that in blocchain, consensus determine the truth ?
Consensus is a faul-tolerant mechanism that that is use in blockchain were every body will trust because can’t be modified. - How is this different from how truth is determined in a central database?
In a central database information is save in one file that can be modified or a person can decide is the information is good or bad, in a blockchain is determined by the consensus mechanism.
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Consensus is a the idea that no one person or entity is the sole determiner of what is truth or false. Consensus on the blockchain allows for people to reach an agreement that something is true or not true. These people are incentivized to reach this agreement or play by the rules which unifies them and ensures that what they conclusively agree on will always be true.
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In a central database, one powerful entity is the law. Such a person or entity can be corrupted or can falsify data and enter it into the base as the case maybe. We will solely be dependent on trusting such an entity whether they tell the truth or not.
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- What does it mean when we say that in blockchain, consensus determines the truth?
Consensus is a thrustless public verified network agreement on the blockchain that a transaction is what has been agreed between the sender and the receiver. Each Block is verified by miners who are incentivised to validate (using SHA256 protocol to verify) each blocks transactions are correct.
- How is this different from how truth is determined in a central database?
In a normal database, there is no requirement to confirm an valid entry is true/accurate. It requires no validation of inputs.
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- In Blockchain Consensus determines the Truth through a process of “trustless” verification, an agreement amongst the network and, or supply chain network.
- The difference in regards to a centralized database would be that a single centralized sourced database would validate or invalidate all new or, old input sources of information within the network / supply chain network, etc.
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Since it is a public, decentralized database, the truth will be determined by the consensus of the nodes in the network. In order to incentivize honest nodes, telling the truth is rewarded with money.
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In a central database, trust (and eventual auditing) determines truth.
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- When the entire network agrees what is true, this is consensus. Consensus removes trust and is achieved with incentives. In blockchain, consensus is achieved by mathematically proving what is true.
- In a central database, we must trust that inputs to the data base are true. It is possible to cheat or lie.
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Consensus determines the truth in blockchain because independent users each verify the transaction and agree that it is true, only then will it be added to the blockchain. That’s why it is referred to as trustless because you do not need to trust anyone as it has been verified and would not show on the blockchain otherwise.
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On a central database every transaction is done by one entity or multiple entity’s within the same company. You have to trust that company is telling the truth, you have to take their word for it. The manager of the company does not even know for sure as some of his staff may have made a mistake and no one double checked it or 2 employees may be working together for malicious intent…
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Its mean 51% of network determine transection is correct . for that they are incentivesed. this is done by minners who verify double spending.
2 ,its different beacuse its verified by 51 % network people not by single authority as in central database
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What does it mean when we say that in blockchain, consensus determine the truth?
It means the digital hash of a transaction/product is validated multiple times by multiple incentivised nodes in the blockchain network. -
How is this different from how truth is determined in a central database?
This process is reliant on the honesty of the database owner and can be easily changed or corrupted.
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- What does it mean when we say that in blockchain, consensus determine the truth?
It means the instead of trusting an entity or take their word for a claim, we actually get to verify the fact the whatever claims are made are in fact the truth because it is verified by a network of computers by reaching consensus. Without reaching consensus it doesn’t appear on the blockchain. Also the fact that the whole supply chain is incentivized.
- How is this different from how truth is determined in a central database?
In a central database each person in the supply chain is claiming to deliver a certain promise and its completely based on trust. its not verified.
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What does it mean when we say that in blockchain, consensus determine the truth?
By creating trust in the network from all diverent computers working together, there is no way to manipulate of fraud because the computers wil recognaise this. In this Global consensus we have a trustlessness network. -
How is this different from how truth is determined in a central database?
This is because it is Decentralized instead of a centralized database that can be manipulated by the human hand.
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- What does it mean when we say that in blockchain, consensus determine the truth?
In a decentralized environment, a given record or transaction can be validated by agreement between multiple independent entities of the network. - How is this different from how truth is determined in a central database?
In central databases, users need to ‘trust’ that the information available is reliable.
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1: Consensus is the moment when all parties involved in a Blockchain network agree to verify the honesty of the information, which determines the veracity of the information.
2:In the central database there is only one who is allowed to verify the truthfulness of the information given, so the other parties will have to trust that central authority.
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In a blockchain, information can be recorded only if it is confirmed (consensus) by several independent units (computers). If the computer confirms the true information, it earns money (incentives). If not true - loses money.
In a central database, as opposed to a decentralized one, there is someone who makes a subjective decision about the veracity of the data
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- What does it mean when we say that in blockchain, consensus determines the truth?
The truth of a transaction is confirmed by a number of computers agreeing and validating the same thing! - How is this different from how truth is determined in a central database?
A central data base is editable and can be manipulated. Also you must trust one or 2 parties rather than in a decentralized network the transaction confirmation was confirmed by multiple computers.
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- What does it mean when we say that in blockchain, consensus determines the truth?
Consensus allows a unanimous decentralized agreement providing transparency and irradiating fraud and cheating within the blockchain by everyone saying the same thing. Consensus needs providence to work and within a supply chain which is effectively a network of entities working together from the start of the chain providing raw goods all the way to the end of the chain where the final product is produced, with consensus being a proven working model based on math it removes the trust element and allows verification along every step of the process/supply chain because along the chain everyone speaks to everyone making it harder for a single entity within the chain to cheat.
- How is this different from how truth is determined in a central database?
Unlike a central database which is a controlled closed source that would require auditing by specialized auditors and that can potentially have its data manipulated by the controlling entities, the public ledger relying on consensus is incentivized to tell the truth by removing trust with proven math allowing verification and real time audit of all data inputted and agreed consensually across the blockchain.
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Answers:
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In blockchain, consensus determines the truth in the sense that what the majority of nodes [(perhaps more precisely the majority (50%+ something) of hashing power from miners)] will confirm as a valid transaction or group of transactions, shall then be appended to the blockchain and remain there. On the contrary an attempted invalid transaction (meaning one which attempts a double spend or anyhow to ‘spend’ outputs not consistent with available inputs -ex. amount of BTC available-) will not be registered and confirmed on the blockchain.
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On a central database, the company &/or entity owning the database has to be trusted by users, as the ‘truth’ is basically determined by the records of the database’s owner. Should there records result in being incorrect (perhaps due to hacking of the database or due to poor database management -only considering here the bona fide mismatch cases-) then the user shall have to go through burdensome, time -& possibly money- consuming evidentiary proceedings, in order to try and demonstrate an alternative ‘truth’. All of this is not necessary when you deal with the blockchain (provided you do so in an un-intermediated manner, of course).
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- What does it mean when we say that in blockchain, consensus determines the truth?
Consensus is the mechanism that provides incentives for nodes to keep each other honest.
- How is this different from how truth is determined in a central database?
A central database, one can change the data and make up their own truth. Therefore the data in a centralized database cannot be trusted to the same degree as a decentralized system.
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Consensus is a big part of removing trust. Each computer has
a copy of the blockchain. And to reach a consensus they all must agree.
Provenance can not work without consensus. -
In a central database there is no incentive for a consensus on
a ledger or blockchain. In the Bitcoin Blockchain the incentive to reach
an accurate consensus is financially rewarded. Blockchain is a network
wherein it is very difficult to cheat, because there is a global consensus.
It is practically impossible to cheat.
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- The ledger will have to come to an agreement to approve or deny a transaction
- A centralized database is approved by one entity instead of many decentralized nodes agreeing on something. A centralized data base can be more incorrect or biased then many decentralized nodes all agreeing for data approval/rejection
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