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Ethereum: How do SPV (simple payment verification) wallets learn about incoming transactions?
Understanding a simple payment of payment (SPV) wallets: How to check incoming transactions
As an Ethereum user, you probably came across the concept of SPV wallets and how they work. In this article, we will break what SPV wallets do to check the incoming transactions, helping you to understand their internal work.
What is SPV wallet?
SPV (Simple Payment Check) is a wallet a type of Ethereum wallet that does not store your private keys. Instead, it uses a technique called a simple payment of payment to check the transaction online. This allows users to access their means without the need to store sensitive data such as private keys.
How is the SPV wallet?
When you create a SPV wallet, you have received a set of “SPV certificates” containing information about your address and transactions confirmed on the Ethereum network. These certificates are used to check incoming transactions.
Here’s how it works:
- Transaction check : When a new transaction creates and broadcasts on the network, the SPV wallet generates the “SPV certificate” set on the basis of the input data transactions.
- Verification : The wallet then compares these SPV certificates to the list of well -known rolled transactions already confirmed on the network (known as the “State Channel”).
- Confirmation : If the SPV certificate coincides with one of the known valid transactions, it indicates that the transaction is valid and has not been modified or threatened.
- Verification result
: The wallet then stores a proven transaction in its inner database, allowing you access to its means.
SPV wallets check incoming transactions?
To check the incoming transactions, the SPV wallet uses a technique called “re -encoding” or “re -checking”. Here’s how it works:
- Re -encoded data : When a new transaction into the network is created and broadcast, the wallet re -encoding its input data using a specific format (usually JSON).
- Checking with known transactions : The wallet then compares these re -enclosed data with a list of well -known rolled transactions that have already been confirmed on the network.
- Matching : If the re -enclosed data match one of the well -known rolled transactions, it indicates that the transaction is valid and has not been modified or threatened.
Suppose the user
Let’s say we want to figure out how the SPV wallet checks the incoming transaction using a specific example: user A wants to send 1 ETH to user B. Here is what happens:
* Creating transactions : wallet creates a new transaction and broadcasts it into the network, including its input data (ETH address).
* SPV Certificate Generation : The wallet generates the SPV certificate for this transaction using the inner base of the wallet.
* State Channel : The wallet also includes this SPV certificate on the list of well -known rolled transactions that have already been confirmed online (known as the state channel).
* Checking with known transactions : When a user A wants to send 1 eth, the wallet compares its re -encoded data with a well -known valid transaction on the state channel.
* Match : If the two of them match, it indicates that the transaction is valid and has not been modified or lifted.
In short, the SPV wallets use a technique called a simple payment of payment to verify incoming transactions by comparing their input data to the list of well -known valid transactions. This allows users to access their means without the need to store sensitive information such as private keys. Understanding how it works, you will be better equipped to move around the Ethereum world and make informed decisions about your digital property.