README.md

📄 Database Structure: contracts Table

This document describes the structure and purpose of the contracts table within the databases.
The table stores metadata and deployment details of smart contracts.

📌 Table Description

Each record stored in the table has the following structure and fields, with described constraints.

Column Name	Type	Constraints	Description -
address	TEXT	PRIMARY KEY	The unique address of the smart contract on the blockchain.
creator	TEXT	NOT NULL	The address of the account that deployed the contract.
creation_tx	TEXT	NOT NULL	The transaction hash that created the contract.
creation_time	TIMESTAMP	NOT NULL	The timestamp when the contract was deployed.
creation_block	INTEGER	NOT NULL	The block number in which the contract was created.
name	TEXT	NULLABLE	The human-readable name of the contract, if available.
source_code	TEXT	NULLABLE	The full Solidity source code of the contract.
abi	TEXT	NULLABLE	The Application Binary Interface (ABI) of the contract.
compiler_version	TEXT	NULLABLE	The Solidity compiler version used to compile the contract.
evm_version	TEXT	NULLABLE	The targeted Ethereum Virtual Machine (EVM) version.
optimization_used	BOOLEAN	NULLABLE	Indicates whether compiler optimizations were enabled.
runs	INTEGER	NULLABLE	Number of optimization runs used during compilation.
constructor_args	TEXT	NULLABLE	Encoded constructor arguments passed during deployment.
library	TEXT	NULLABLE	Linked library information, if any.
license	TEXT	NULLABLE	License type of the source code (e.g., MIT, GPL-3.0).
is_proxy	BOOLEAN	NULLABLE	Flag indicating whether the contract is a proxy.
implementation	TEXT	NULLABLE	Address of the implementation contract, if this is a proxy.
swarm_source	TEXT	NULLABLE	Swarm hash / metadata URL pointing to the source code bundle.

📝 Notes:

• The primary key address ensures uniqueness for each deployed contract in the corresponding chain.
• creation_tx, creation_time, and creation_block stores contract’s deployment information, i.e. transaction id, timestamp, and block number.
• source_code, abi, and compiler_version are typically available when the contract has been verified.
• Proxy patterns are identified through is_proxy and implementation.

🧱 Table Definition

CREATE TABLE IF NOT EXISTS contracts (
    address TEXT PRIMARY KEY,
    creator TEXT NOT NULL,
    creation_tx TEXT NOT NULL,
    creation_time TIMESTAMP NOT NULL,
    creation_block INTEGER NOT NULL,
    name TEXT,
    source_code TEXT,
    abi TEXT,
    compiler_version TEXT,
    evm_version TEXT,
    optimization_used BOOLEAN,
    runs INTEGER,
    constructor_args TEXT,
    library TEXT,
    license TEXT,
    is_proxy BOOLEAN,
    implementation TEXT,
    swarm_source TEXT
);

🧭 Usage Example

SELECT address, name, compiler_version, source_code
FROM contracts
WHERE source_code IS NOT NULL AND source_code != ""
ORDER BY creation_block DESC
LIMIT 10;

This query returns the 10 most recently deployed contracts with available source code along with their addresses, names and compiler versions.

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license: mit