Witnet Addresses on Ethereum¶

Ethereum smart contracts can send oracle queries (aka data requests) to the Witnet decentralized oracle using the witnet-ethereum-bridge Solidity library.

The most convenient way to use the witnet-ethereum-bridge library is through the Witnet Truffle Box, because it allows writing Witnet data requests using Javascript, which is automatically compiled to Witnet byte code and then wrapped in a Solidity contract that you can easily import from your own contracts.

The Witnet Truffle Box also abstracts away the complexity of having to instantiate or link the Witnet contracts listed here.

These addresses are provided for reference, just in case someone prefers not to use the Witnet Truffle Box and rather talk to the Witnet Request Board and other contracts directly using the interfaces in witnet-ethereum-bridge.

Mainnet¶

Main contracts¶

CBOR: 0x1D9c4a8f8B7b5F9B8e2641D81927f8F8Cc7fF079
Witnet: 0x916aC9636F4Ea9f54f07c9De8fDCd828e1b32c9B
WitnetRequestBoard: 0xd653fbd7c736838289262F0F41A458f35393C88a
WitnetRequestBoardProxy: 0x400DbF3645b345823124aaB22D04013A46D9ceD5

Public price feeds¶

EthUsdPriceFeed: 0x1ebD93231a7fE551E1d6405404Df34909eff4c2C
BtcUsdPriceFeed: 0xF2712e7114A237625EFC8bBA6a6ed1Bb8b6029c9

Warning

These addresses may change soon as the latest version of the Witnet bridge is deployed on Ethereum mainnet in the coming days.

Rinkeby¶

Main contracts¶

WitnetProxy: 0x6cE42a35C61ccfb42907EEE57eDF14Bb69C7fEF4
WitnetRequestBoard: 0xA15D02007f979108653B43089ee25cF653CF8B22
WitnetDecoderLib: 0x87312848B4d67A9545e563c75fb5C54CA364Fcef
WitnetParserLib: 0x14b5cAC222d55Cb11CC9fE5Fbf6793177B3048F6

Public price feeds¶

EthUsdPriceFeed: 0x1320C130Fc5361ced969Ca737d692a30e1142a13
BtcUsdPriceFeed: 0xa7C971149AdfdFB237A0F78D7d317B916FFCE093

Goerli¶

Main contracts¶

WitnetProxy: 0xb58D05247d16b3F1BD6B59c52f7f61fFef02BeC8
WitnetRequestBoard: 0x035B8CE1e6ec21A8BfEfa82635A01BF2A172E3E0
WitnetDecoderLib: 0x8b90dDB14ce8604df484e9a37B996719881439BC
WitnetParserLib: 0x46cF0c52f7B2e76F1E95fe163B98F92413f1d5A4

Public price feeds¶

EthUsdPriceFeed: 0x031699240f710B47e92Df7766C06ee6C22A75df1
BtcUsdPriceFeed: 0x43Fe8778389f4EB98e82B750DCCAfF0D7d57778c

Kovan¶

Main contracts¶

CBOR: 0xB4B2E2e00e9d6E5490d55623E4F403EC84c6D33f
Witnet: 0xD9465D38f50f364b3263Cb219e58d4dB2D584530
WitnetRequestBoard: 0x7D8A488BACB56dA2De17628e26a21fFd97792b81
WitnetRequestBoardProxy: 0xD9a6d1Ea0d0f4795985725C7Bd40C31a667c033d

Public price feeds¶

EthUsdPriceFeed: 0xA996939e6a07a0D1D6376c59BE515d8441f5E9b8
BtcUsdPriceFeed: 0x9b3C5A6cB55E027d9ae6f265f6FB6fFA86e7b35E

Warning

The contracts currently deployed on Kovan belong to an older version of the Witnet bridge and we cannot guarantee their liveness or update period. They will be upgraded soon, but in the meantime, please use some other Ethereum testnet (rinkeby or goerli).