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Overview

OraclesManager is the base contract for managing the network of independent validators (oracles) who verify and sign cross-chain transactions. Contract Location: contracts/transfers/OraclesManager.sol

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State Variables

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minConfirmations
uint8
Minimum number of oracle signatures required for transaction confirmation
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excessConfirmations
uint8
Required confirmations when many oracles are active
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requiredOraclesCount
uint8
Number of oracles marked as required (must sign every transaction)
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oracleAddresses
address[]
Array of active oracle addresses

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Main Functions

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addOracles

function addOracles(
    address[] memory _oracles,
    bool[] memory _required
) external onlyAdmin
Adds new oracles to the validator set.

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updateOracle

function updateOracle(
    address _oracle,
    bool _isValid,
    bool _required
) external onlyAdmin
Updates oracle status and requirements.

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setMinConfirmations

function setMinConfirmations(uint8 _minConfirmations) external onlyAdmin
Updates the minimum confirmation threshold.

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Oracle Types

Required Oracles: Must sign every transaction for it to be valid Optional Oracles: Contribute to reaching minimum confirmation threshold
At least 51% of oracles must sign for a transaction to be confirmed (minConfirmations ≥ totalOracles / 2 + 1)

Oracle Concepts

Learn about the oracle network architecture

SignatureVerifier

Signature verification contract

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