1/7
Transaction validation in #Cardano.
In the Shelley, Allegra and Mary eras, the transaction validation process was a one-step process. The effect of a valid transaction on the general ledger could be predicted before it was applied.
Transaction validation in #Cardano.
In the Shelley, Allegra and Mary eras, the transaction validation process was a one-step process. The effect of a valid transaction on the general ledger could be predicted before it was applied.
2/7
If it was not, a node rejected it after a failed validation attempt and the transaction was not included in a block, using node time and resources regardless of whether or not the transaction was included in a block.
Alonzo presents a two-phase validation approach.
If it was not, a node rejected it after a failed validation attempt and the transaction was not included in a block, using node time and resources regardless of whether or not the transaction was included in a block.
Alonzo presents a two-phase validation approach.
3/7
The outcome of this strategy is predictable when it comes to general ledger transactions and also ensures fair compensation to nodes for their work and resource usage.
The outcome of this strategy is predictable when it comes to general ledger transactions and also ensures fair compensation to nodes for their work and resource usage.
4/7
The main reason for introducing two phases is to reduce the amount of validation work not compensated by the nodes. The first phase checks if the transaction is correctly constructed and can pay its processing fee.
The main reason for introducing two phases is to reduce the amount of validation work not compensated by the nodes. The first phase checks if the transaction is correctly constructed and can pay its processing fee.
5/7
The second executes the scripts that are included in the transaction. In case the transaction is validated in the first phase, the scripts of the second phase will be executed.
The second executes the scripts that are included in the transaction. In case the transaction is validated in the first phase, the scripts of the second phase will be executed.
6/7
Thus a small amount of uncompensated work is done by a node without the costly validation of the 2nd phase. If the transaction is not actionable, it is marked invalid, and if actionable, the node validates in the second phase of the transaction.
Thus a small amount of uncompensated work is done by a node without the costly validation of the 2nd phase. If the transaction is not actionable, it is marked invalid, and if actionable, the node validates in the second phase of the transaction.
7/7
In both cases, the node will be compensated, either through the validation fee or by the guarantee collected. The guarantee of a transaction is the amount of $ADA that will be collected as fees in case the validation of a script in phase 2 fails.
iohk.io/en/blog/posts/…
In both cases, the node will be compensated, either through the validation fee or by the guarantee collected. The guarantee of a transaction is the amount of $ADA that will be collected as fees in case the validation of a script in phase 2 fails.
iohk.io/en/blog/posts/…
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