Ethereum Signature Database
Business Profile
Core Value Proposition
4byte.directory provides the Ethereum Signature Database, which maps Ethereum function signatures (first four bytes) and event signatures (32-byte Keccak hashes) to their human-readable representations.
Target Customer
{"Blockchain developers","Ethereum smart contract developers","API engineers","Security researchers"}
Key Differentiator
Free to use with no licensing restrictions, permissive data reuse, and a large, searchable dataset (1,414,682 signatures) with an API and data-submission features.
Implementation Timeline
Not specified in the provided content
Pain Points
- 1Hard-to-interpret raw 4-byte and 32-byte Ethereum signatures without a mapping to human-readable names.
- 2Risk of service disruption or heavy load when using the API; scraping is allowed but should be done with limited concurrency or by running a local copy.
- 3Lack of an out-of-the-box, centralized solution for decoding signatures across multiple contracts without a dedicated database.
Key Features
- 1Function Signatures mappings
- 2Event Signatures mappings
- 3Submit Signatures
- 4Submit ABI
- 5Submit Solidity Source File
- 6API Docs
- 7Search Signatures (Bytes4)
Target Customer Industries
Competitive Advantages
- 1No license restrictions on data usage
- 2Large dataset (over 1.4 million signatures)
- 3Encourages and supports data scraping and local copies
- 4Public API and submission capabilities
Key Benefits
Additional Product Information
Product Description
A database that maps Ethereum function and event signatures to human-readable representations, with capabilities to submit signatures, ABIs, and Solidity source, and to access via API.
Target Market
Developers and teams building Ethereum smart contracts and DApps who need to decode transaction data
Unique Value Proposition
Free, license-free, openly accessible database of Ethereum signatures with a large dataset and API access for easy decoding of on-chain data
Technical Requirements
No specific requirements noted; API accessible; ability to scrape or run your own copy with limited concurrency
Pricing Model
Free; no license restrictions
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