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EIP-1344: Updated links (#2264)

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* EIP-1344: Updated links

* EIP-1344: Fixed link formatting
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Bryant Eisenbach 2019-09-07 09:35:40 -04:00 committed by Alex Beregszaszi
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EIPS/eip-1344.md
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@ -14,7 +14,7 @@ created: 2018-08-22
This EIP adds an opcode that returns the current chain's EIP-155 unique identifier. This EIP adds an opcode that returns the current chain's EIP-155 unique identifier.
## Motivation ## Motivation
[EIP-155](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md) proposes to use the chain ID to prevent replay attacks between different chains. It would be a great benefit to have the same possibility inside smart contracts when handling signatures, especially for Layer 2 signature schemes using [EIP-712](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-712.md). [EIP-155](https://eips.ethereum.org/EIPS/eip-155) proposes to use the chain ID to prevent replay attacks between different chains. It would be a great benefit to have the same possibility inside smart contracts when handling signatures, especially for Layer 2 signature schemes using [EIP-712](https://eips.ethereum.org/EIPS/eip-712).
## Specification ## Specification
Adds a new opcode `CHAINID` at 0x46, which uses 0 stack arguments. It pushes the current chain ID onto the stack. Chain ID is a 256-bit value. The operation costs `G_base` to execute. Adds a new opcode `CHAINID` at 0x46, which uses 0 stack arguments. It pushes the current chain ID onto the stack. Chain ID is a 256-bit value. The operation costs `G_base` to execute.
@ -43,11 +43,9 @@ This was previously suggested as part of [EIP901](https://github.com/ethereum/EI
TBD TBD
## Implementation ## Implementation
A reference implementation is here: A reference implementation for the Trinity Python client is [here](https://github.com/ethereum/py-evm/pull/1803).
https://github.com/fubuloubu/py-evm/tree/eip1344-chain-id
An example implementation of a trustless chain ID oracle was implemented here: An example implementation of a trustless chain ID oracle was implemented [here](https://github.com/fubuloubu/chain-id-oracle/blob/master/ChainIdOracle.vy).
https://github.com/fubuloubu/chain-id-oracle/blob/master/ChainIdOracle.vy
## Copyright ## Copyright
Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/). Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).