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Commit 4c7e74a

Browse files
feat: added partial implementation of binary arbitration proxies
1 parent 54438bc commit 4c7e74a

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+1291
-14349
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‎.gitignore‎

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# Buidler output
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artifacts/
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cache/
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# Created by https://www.toptal.com/developers/gitignore/api/vim,node,visualstudiocode,yarn
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# Edit at https://www.toptal.com/developers/gitignore?templates=vim,node,visualstudiocode,yarn

‎packages/realitio-proxies/buidler.config.js‎ renamed to ‎buidler.config.4.js‎

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@@ -21,13 +21,13 @@ task("accounts", "Prints the list of accounts", async (_, {ethers}) => {
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module.exports = {
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// This is a sample solc configuration that specifies which version of solc to use
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solc: {
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version: "0.7.2",
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version: "0.4.24",
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optimizer: {
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enabled: true,
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runs: 200,
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},
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},
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paths: {
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sources: "./contracts",
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sources: "./contracts/0.4.x",
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},
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};

‎buidler.config.js‎

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const {usePlugin, task} = require("@nomiclabs/buidler/config");
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usePlugin("@nomiclabs/buidler-waffle");
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usePlugin("@nomiclabs/buidler-ethers");
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usePlugin("@nomiclabs/buidler-web3");
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// This is a sample Buidler task. To learn how to create your own go to
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// https://buidler.dev/guides/create-task.html
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task("accounts", "Prints the list of accounts", async (_, {ethers}) => {
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const accounts = await ethers.getSigners();
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for (const account of accounts) {
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console.log(await account.getAddress());
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}
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});
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module.exports = {
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solc: {
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version: "0.7.2",
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optimizer: {
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enabled: true,
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runs: 200,
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},
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},
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paths: {
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sources: "./contracts/0.7.x",
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},
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};

‎contracts/0.4.x/TestArbitrator.sol‎

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pragma solidity ^0.4.24;
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import "@kleros/kleros-interaction/contracts/standard/arbitration/EnhancedAppealableArbitrator.sol";
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// solhint-disable-next-line no-empty-blocks
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contract TestArbitrator is EnhancedAppealableArbitrator {
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}
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// SPDX-License-Identifier: MIT
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pragma solidity ^0.7.1;
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import "@kleros/erc-792/contracts/IArbitrable.sol";
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/**
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* @dev Arbitrable interface for cross-chain arbitration.
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*/
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interface ICrossChainArbitrable is IArbitrable {
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/**
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* @notice Notifies that a dispute has been requested for an arbitrable item.
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* @param _arbitrableItemID The ID of the arbitrable item.
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* @param _plaintiff The address of the dispute requester.
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*/
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function notifyDisputeRequest(uint256 _arbitrableItemID, address _plaintiff) external;
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/**
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* @notice Cancels a dispute previously requested for an arbitrable item.
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* @param _arbitrableItemID The ID of the arbitrable item.
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*/
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function cancelDispute(uint256 _arbitrableItemID) external;
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/**
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* @notice Returns whether an arbitrable item is subject to a dispute or not.
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* @param _arbitrableItemID The ID of the arbitrable item.
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* @return The disputability status.
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*/
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function isDisputable(uint256 _arbitrableItemID) external view returns (bool);
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/**
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* @notice Returns the extra data for the arbitrator.
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* @param _arbitrableItemID The ID of the arbitrable item.
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* @return The arbitrator extra data.
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*/
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function getArbitratorExtraData(uint256 _arbitrableItemID) external view returns (bytes memory);
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}
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/**
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* @dev Arbitration Proxy on the side chain.
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*/
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interface IHomeBinaryArbitrationProxy {
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/**
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* @notice Relays the meta evidence to the Foreign Chain.
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* @dev Should be called by the arbitrable contract when the meta evidence is created.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _metaEvidence The meta evidence.
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*/
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function relayMetaEvidence(uint256 _arbitrableItemID, string calldata _metaEvidence) external;
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/**
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* @notice Relays to the Foreign Chain that an arbitrable item is subject to a dispute.
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* @dev Should be called by the arbitrable contract when the arbitrable item can be disputed.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _defendant The address of the defendant in case there is a dispute.
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* @param _deadline The absolute time until which the dispute can be created.
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*/
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function relayDisputable(
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uint256 _arbitrableItemID,
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address _defendant,
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uint256 _deadline
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) external;
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/**
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* @notice Receives a dispute request for an arbitrable item from the Foreign Chain.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _plaintiff The address of the dispute creator.
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*/
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function receiveDisputeRequest(
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ICrossChainArbitrable _arbitrable,
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uint256 _arbitrableItemID,
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address _plaintiff
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) external;
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/**
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* @notice Relays to the Foreign Chain that a dispute has been accepted.
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* @dev This will likely be called by an external 3rd-party (i.e.: a bot),
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* since currently there cannot be a bi-directional cross-chain message.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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*/
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function relayDisputeAccepted(ICrossChainArbitrable _arbitrable, uint256 _arbitrableItemID) external;
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/**
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* @notice Relays to the Foreign Chain that a dispute has been rejected.
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* This can happen either because the deadline has passed during the cross-chain
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* message to notify of the dispute request being in course or if the arbitrable
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* contract changed the state for the item and made it non-disputable.
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* @dev This will likely be called by an external 3rd-party (i.e.: a bot),
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* since currently there cannot be a bi-directional cross-chain message.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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*/
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function relayDisputeRejected(ICrossChainArbitrable _arbitrable, uint256 _arbitrableItemID) external;
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/**
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* @notice Receives the dispute created on the Foreign Chain.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _arbitrator The arbitrator address on the Foreign Chain.
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* @param _arbitratorDisputeID The ID of the dispute in the Foreign Chain arbitrator.
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*/
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function receiveDisputeCreated(
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ICrossChainArbitrable _arbitrable,
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uint256 _arbitrableItemID,
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address _arbitrator,
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uint256 _arbitratorDisputeID
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) external;
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/**
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* @notice Receives the failed dispute creation on the Foreign Chain.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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*/
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function receiveDisputeFailed(ICrossChainArbitrable _arbitrable, uint256 _arbitrableItemID) external;
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/**
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* @notice Receives the ruling for a dispute from the Foreign Chain.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract on the Home Chain.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _ruling The ruling given by the arbitrator.
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*/
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function receiveRuling(
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address _arbitrable,
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uint256 _arbitrableItemID,
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uint256 _ruling
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) external;
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}
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/**
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* @dev Arbitration Proxy on the main chain.
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*/
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interface IForeignBinaryArbitrationProxy is IArbitrable {
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/**
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* @notice Receives the meta evidence from the Home Chain.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract on the Home Chain.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _metaEvidence The meta evidence.
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*/
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function receiveMetaEvidence(
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address _arbitrable,
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uint256 _arbitrableItemID,
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string calldata _metaEvidence
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) external;
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/**
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* @notice Receives from the Home Chain that an arbitrable item is subject to a dispute.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract on the Home Chain.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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* @param _defendant The address of the defendant in case there is a dispute.
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* @param _deadline The absolute time until which the dispute can be created.
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* @param _arbitratorExtraData The extra data for the arbitrator.
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*/
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function receiveDisputable(
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address _arbitrable,
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uint256 _arbitrableItemID,
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address _defendant,
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uint256 _deadline,
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bytes calldata _arbitratorExtraData
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) external;
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/**
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* @notice Receives from the Home Chain that the dispute has been accepted.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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*/
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function receiveDisputeAccepted(address _arbitrable, uint256 _arbitrableItemID) external;
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/**
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* @notice Receives from the Home Chain that the dispute has been rejected.
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* @dev Should only be called by the xDAI/ETH bridge.
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* @param _arbitrable The address of the arbitrable contract.
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* @param _arbitrableItemID The ID of the arbitrable item on the arbitrable contract.
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*/
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function receiveDisputeRejected(address _arbitrable, uint256 _arbitrableItemID) external;
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}

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