@openzeppelin/contracts

Secure Smart Contract library for Solidity

v5.4.0 URL: https://unpkg.com/@openzeppelin/contracts@5.4.0

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@openzeppelin/contracts-upgradeable

Secure Smart Contract library for Solidity

v5.4.0 URL: https://unpkg.com/@openzeppelin/contracts-upgradeable@5.4.0

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solidity ethereum smart contracts security zeppelin

openzeppelin-solidity

Secure Smart Contract library for Solidity

v3.4.2 URL: https://unpkg.com/openzeppelin-solidity@3.4.2

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solidity ethereum smart contracts security zeppelin

@klaytn/contracts

Secure Smart Contract library for Solidity

v1.0.6 URL: https://unpkg.com/@klaytn/contracts@1.0.6

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solidity ethereum smart contracts security zeppelin

@zoralabs/openzeppelin-contracts-upgradeable

Secure Smart Contract library for Solidity

v4.8.4 URL: https://unpkg.com/@zoralabs/openzeppelin-contracts-upgradeable@4.8.4

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solidity ethereum smart contracts security zeppelin