Neutral Political Machine

    This package has been deprecated

    Author message:

    Please use erc1820 instead. ERC1820 has superseded ERC820.

    erc820

    0.0.25 • Public • Published

    ERC820 Pseudo-introspection Registry Contract

    Build Status License npm version npm downloads Solidity version EIP

    Universal registry smart contract where any address (contract or regular account) can register which interface it supports and which smart contract is responsible for its implementation.

    Proposal

    The official proposal can be found at: eips.ethereum.org/EIPS/eip-820.

    ERC820 Registry

    This repository contains the official implementation of the ERC820 registry as defined in the standard.

    The address of the registry on all chains is:

    0x820b586C8C28125366C998641B09DCbE7d4cBF06

    ERC820 Implementer

    The ERC820 implementer interface is the interface any contract MUST implement if said contract implements an interface on behalf of another address via ERC820.

    Compilation & Verification

    The registry can be compiled from the source code using:

    npm run build

    This will write the json artifacts for the registry in the artifacts folder and the standard output in the build folder.

    Verification

    The address of the account creating the registry, the address of the registry and the raw signed transaction can be generated with:

    npm run info
     
    > erc820@0.0.23 info /Users/kodikodytis/code/ERC820
    > node js/info.js
     
    RawTx:  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
    Sender:  0xE6C244a1C10Aa0085b0cf92f04cdaD947C2988b8
    Contract: 0x820b586C8C28125366C998641B09DCbE7d4cBF06

    Those values can be compared with the values in the ERC820 standard.

    Metadata

    The metadata---for the registry only---can be extrated using:

    node scripts/extract_metadata.js

    This metadata can also be compared with the formated version in the ERC820 standard.

    Vanity address

    The vanity address of the registry---starting with 0x820---has been generated using the scripts/vanitygen.sh and scripts/vanitygen-info.js scripts.

    Authors

    License

    The ERC820 registry is part of the ERC820 standard and is therefore in the public domain via CC0.

    The authors waive all copyright and related or neighboring rights for the rest of this repository's content via CC0. A copy of the CC0 waiver is included in the LICENSE file.

    Install

    npm i erc820

    DownloadsWeekly Downloads

    0

    Version

    0.0.25

    License

    CC0-1.0

    Unpacked Size

    235 kB

    Total Files

    36

    Last publish

    Collaborators

    • jbaylina