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1. merlin.blocks

Table Description

The merlin.blocks table stores crucial data about the Ethereum blockchain’s block structure. Each block in the Ethereum blockchain contains a unique set of data that ensures the integrity and chronological order of transactions. Blocks are the building blocks of the Ethereum blockchain, and they contain several key components:

1. Block Header: This includes metadata such as the block number, timestamp, parent block hash, and nonce. The header is essential for maintaining the blockchain’s integrity and linking blocks together in a chain.

2. Transactions: Each block includes a list of transactions that have been validated and added to the blockchain. These transactions consist of various operations, such as transfers of Ether, execution of smart contracts, and other state changes.

3. Uncle Blocks (Ommer Blocks): These are blocks that were mined but not included in the main chain. They are referenced in the block to improve the chain’s security and reward miners for their efforts.

4. State Root: This is a cryptographic hash representing the state of the entire Ethereum network at the time the block was mined. It includes account balances, storage, and other state data.

5. Receipts Root: This is a hash of the receipts of all transactions included in the block. Receipts contain information about the execution of transactions, such as gas used and logs generated.

The merlin.blocks table provides a detailed and organized view of the blockchain’s structure, allowing for efficient retrieval and analysis of blockchain data. This information is crucial for developers, researchers, and analysts working with the Ethereum blockchain, as it enables them to understand the state and evolution of the network.

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2. merlin.transaction_logs

Table Description

This dataset holds detailed logs emitted during transactions by smart contract events. These logs are pivotal for tracking activities such as token transfers, contract updates, and custom event notifications set by contract developers. For instance, when a user transfers ERC-20 tokens, the transaction log would capture the ‘Transfer’ event with details like the sender’s address, recipient’s address, and the amount transferred. This information is crucial for applications that need to monitor and respond to specific contract activities.

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3. merlin.transactions

Table Description

The dataset encompasses comprehensive details of all transactions on the network. It includes the initiating account, destination address, value transferred, gas used, and the data payload. For example, when a user sends Ether to another user, the transaction record would include the sender’s and receiver’s addresses, the amount of Ether sent, and the gas price paid for the transaction. Additionally, it also captures the nonce, which is the transaction count of the sender, helping in preventing double-spending and replay attacks.

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