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Definition

A blockchain contract is a computer program that is stored and executed on a blockchain network. Blockchain contracts are also known as **smart contracts. **They are self-executing contracts that can automate the exchange of value or the execution of certain actions between parties in a transparent and tamper-proof manner. Smart contracts are written in programming languages that are compatible with the specific blockchain platform. They are stored on the blockchain and executed automatically when certain pre-defined conditions are met. The execution of a smart contract is irreversible and transparent, as all participants in the network can view the contract’s code and the details of its execution.

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Details

Blockchain contracts, also known as smart contracts, eliminate the need for intermediaries or trusted third parties to oversee transaction execution. This decentralization enhances efficiency, security, and cost-effectiveness compared to traditional contract methods. The Blockchain Contracts namespace within Amberdata’s API enables access to comprehensive details about individual smart contracts. Available data includes contract metadata such as the contract name, bytecode, Application Binary Interface (ABI), and source code where available. Additionally, the API exposes all contract functions; if function signatures are not directly accessible, bytecode is decompiled to extract function information.

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API Endpoints

/blockchains/contracts/{hash}

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Availability

Blockchain endpoints across the On-Chain namespaces are accessible via REST API, WebSockets, and JSON-RPC. A complete list of supported blockchain networks is provided in the API Documentation. Amberdata maintains full nodes for supported blockchains, retaining all events from the genesis block onward. This infrastructure supports the delivery of complete historical datasets for most supported chains.

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Frequently Asked Questions

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What programming languages are used to create blockchain contracts?

  • Programming languages for blockchain contracts vary by network. For instance, Ethereum smart contracts are primarily written in Solidity. On the Bitcoin network, contract-like functionality is implemented using scripting languages, with tools available in C++, Python, Java, and others.

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Can blockchain contracts be edited or deleted?

  • Once deployed on the blockchain, smart contracts are immutable; they cannot be edited or deleted. This immutability guarantees contract security and ensures that terms cannot be altered post-deployment.