Homework on UTXO vs Account Model

Ethereum 101
#1925 
1. The account model doesn’t require much space as the UTXO model, why is that a benefit?
Because it is moving ehter from one account to another rahter than updating a complex chain of 	UTXOs of Bitcoin. This is beneficial in the sense that it is faster and fungible
2. How is the account model not as great as the UTXO model for privacy?
Because transactions are trackable in the blockchain. This means that one can know from 
where to where the transactions are flowing as opposed o UTXOs where the origin of 	trasactions is a complex flow of UTXOs that might come from multiple operations
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#1926
  1. More Tx can be processed with less space and thereby faster executions
  2. The account model is easily trackable and UTXO is harder to trace each Tx
#1927

  1. The account model does not require as much space as the UTXO model. It is a benefit because smaller transactions = quicker and less fees.

  2. The account model is not as good for Privacy because on the UTXO model it is very difficult to tell where the UTXOs are going looking from the outside in. On the Account Model other people can see when and where a transaction went through on your Ethereum Wallet.

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#1928
  1. It’s a benefit because blocks can add more transaction.
  2. The account model is not as great as the UTXO because all transactions are traceable if you attempt to sent cryptocurrency to the same account.
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#1929

[ 1. The account model doesn’t require much space as the UTXO model, why is that a benefit?
It is faster allowing more transactions in less space.
2. How is the account model not as great as the UTXO model for privacy?
Due to the inability to send funds back to the change wallet, since eth has no way to split a transaction into multiple direction, each transaction is more visible, making it less private as it is seen on the blockchain. There is less privacy for this reason.

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#1930

  1. The account model doesn’t require much space as the UTXO model, why is that a benefit?
    More transactions can be fit into the space limitation for one block, allowing more transactions per second to be processed.

  2. How is the account model not as great as the UTXO model for privacy?
    The account model clearly shows where funds are being sent. “Account A send 1 ETH to account B”, as opposed to the less fungible model of tallying up inputs and outputs.

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#1931

1.the account model doesn’t require as much space as the utxo model and this is a benefit as it will speed up the network potentially and it has to send data regarding to smart contract also and there various different states which will take up space in the blocks, so less data on transactions can mean more data for smart contracts.
2.Account model of ethereum lacks privacy over the utxo model of btc as the utxo model creates transactions with various different outputs one or several of these outputs could be controlled by the same individual and it would be impossible to know if they did or not and the utxo’s that correspond with your private key are the ones you can spend. whereas the account model has a balance of the individual and in transactions sent or received the blockchain just adds or subtracts the amount to you balance, and so a transaction on the ethereum network will just have sender to receiver, tracked one address to another, agreed you could be controlling both addresses but exact amounts in and out of addresses is visible

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#1932

1)The account model in ethereum is much simpler it just updates the wallet balances every time a transaction occurs instead of storing and calculating all your unspent transactions, making the transaction data smaller.

2)This model is very basic and does not have all the input and output addresses you simply do one transaction and cannot send money back to yourself or it can be traced from you back to you.

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#1933

[quote=“filip, post:1, topic:8445”]

  • The account model doesn’t require much space as the UTXO model, why is that a benefit?
    Blocks can include more transactions and be processed faster. It allows participation at the individual level as time passes, not just large data centers, due to savings of space in the block chain.
  • How is the account model not as great as the UTXO model for privacy?
    The balance and destination are readily visible on the block chain. With UTXO one transaction can have multiple outsputs. There is no sending to two or more addresses as in UTXOs which can disguise which address belongs to either party.
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#1934

  1. TX’s are smaller, making it more efficient.

  2. UTXO will likely have a second or third payment for things like change, making it harder to track specifically who can spend each UTXO, giving it a layer of privacy.

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#1935
  1. The least space required the more transaction on each block is possible meaning that it is a gain of speed and cost.
  2. With the account model everyone can check the balance of someone directly. With the UTXO model only the owner of the private key can construct the balance ading up the different UTXO.
    Also when sending a transaction no one knows to which address which bitcoin amount is sent. With the account model it is written in the transaction that this fund goes from A to B.
1 Like
#1936
  1. The account model doesn’t require much space as the UTXO model, why is that a benefit?

Saving space on the blockchain is good for efficiency, and prevents the situation Bitcoin had with full blocks before the Segwit update. It leaves room for other data, makes the blockchain easier to store and propagate quickly throughout the network, and helps keep fees low.

  1. How is the account model not as great as the UTXO model for privacy?

The UTXO model allows you to create transactions with multiple outputs, allowing you to send some of your Bitcoin (your change) to other wallet address under your control. It’s a way to disguise your spending for additional privacy. The Account model used by Ethereum is more like a bank account, where you can make transactions but cannot send funds back to yourself under another name/wallet address.

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#1937
  1. The account model doesn’t require much space as the UTXO model, why is that a benefit?

It allows the blockchain to contain more transactions in less data which also makes faster transactions and lower tx fees possible.

  1. How is the account model not as great as the UTXO model for privacy?

With ethereum it’s clear who’s receiving funds, who’s keeping funds and how much.

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#1938

  1. This is a benefit because the lower data requirements allow the opportunity for more individuals to be operating a full node. If the data requirements were higher it may not be possible for one individual to operate a full node.

  2. The account model is not as beneficial as the UTXO model for privacy because the smart contracts are visible to everyone.

1 Like
#1939
  • The account model doesn’t require much space as the UTXO model, why is that a benefit?
    A) It does not have UTXO’s therefore, it takes up less space in the block. Making the system faster.
  • How is the account model not as great as the UTXO model for privacy?
    A) UXTO’s have more inputs and outputs, making it more difficult to determine who sent what to who. Monies can be sent back to the original sender. This makes BTC more privet.
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#1940
  1. With each tx consisting of less space, more can occur per block enhancing speed of network.
  2. UTXOs outputs are not distinguished during transaction meaning the actual amount sent to each address are not publicly available if there are multiple outputs.
#1941

QUESTION!!! A little confused!

If in a BTC transaction there are multiple outputs in a transaction and they can’t be distinguished, how can the UTXO be traced back to an unfavorable incident? How could that if a UTXO is split or partly recirculated back to the wallet that initiates the transaction, isn’t the input UTXO pathway then lost?

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#1942

The account model doesn’t require much space as the UTXO model, why is that a benefit?

If it takes up less space, you bloack sizes are smaller and faster to be accepted, as well as taking up less storage space.

How is the account model not as great as the UTXO model for privacy?

You can trace UTXO’s (its outputs, amounts, etc) you can not trace in the Ethereum Account Model, as they are all combined, and it makes it less private.

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#1943

  1. More transactions can fit into a block. It also makes it quicker for the nodes to receive the transactions into their database.

  2. The account model is purely subtracting from one account and adding to another in any transaction and therefore it can be viewed on the blockchain where the money has gone. However, with the UTXO system you can send to many different addresses and back to yourself and no one would know where the money is actually going.

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#1944
  1. The account model doesn’t require much space as the UTXO model, why is that a benefit?
  • It is a benefit because it is a much simpler model and much easier to keep track of.
  1. How is the account model not as great as the UTXO model for privacy?
  • The UTXO model is easier to obfuscate as it is impossible to tell with 100% certainty which transactions go to the recipient or back to the sender. The account model is much more direct when it comes to transferals and therefore easier to gather and determine how the transaction went and to whom.
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