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Precompile EVM

QoreChain estende QoreChain EVM Engine con sei contratti precompilati personalizzati che espongono funzionalità a livello di protocollo direttamente a Solidity. Questi precompile forniscono accesso on-chain a crittografia post-quantistica, scoring del rischio AI, messaggistica cross-VM e parametri di consenso PRISM.

nota

I precompile sono disponibili sia sulla mainnet qorechain-vladi (EVM chain ID 9801, attiva dal 7 giugno 2026 sulla versione di chain v3.1.85) sia sulla testnet qorechain-diana (EVM chain ID 9800). Tutti gli esempi usano l'endpoint JSON-RPC sulla porta 8545.

Mappa degli indirizzi dei precompile​

PrecompileIndirizzoGas baseDescrizione
CrossVM Bridge0x000000000000000000000000000000000000090150.000Chiamate cross-VM sincrone (EVM verso CosmWasm)
PQC Verify0x0000000000000000000000000000000000000A0125.000 + 8/byteVerifica firme post-quantistiche ML-DSA-87
PQC Key Status0x0000000000000000000000000000000000000A022.500Verifica se un account ha una chiave PQC registrata
AI Risk Score0x0000000000000000000000000000000000000B0150.000Ottiene il punteggio di rischio generato dall'AI per i dati di transazione
AI Anomaly Check0x0000000000000000000000000000000000000B0240.000Verifica se un trasferimento è segnalato come anomalo
PRISM Consensus Params0x0000000000000000000000000000000000000C011.500Legge i parametri di consenso correnti ottimizzati da PRISM

Interfacce Solidity​

IQorePQC.sol​

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IQorePQC {
    /// @notice Verify an ML-DSA-87 (Dilithium-5) signature
    /// @param pubkey The 2592-byte ML-DSA-87 public key
    /// @param signature The 4627-byte ML-DSA-87 signature
    /// @param message The original message bytes
    /// @return valid True if the signature is valid
    function pqcVerify(
        bytes calldata pubkey,
        bytes calldata signature,
        bytes calldata message
    ) external view returns (bool valid);

    /// @notice Check if an account has a registered PQC public key
    /// @param account The Ethereum-style address to check
    /// @return registered True if a PQC key is registered
    /// @return algorithmId The PQC algorithm identifier (1 = ML-DSA-87)
    /// @return pubkey The registered public key bytes (empty if not registered)
    function pqcKeyStatus(address account)
        external
        view
        returns (bool registered, uint8 algorithmId, bytes memory pubkey);
}

IQoreAI.sol​

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IQoreAI {
    /// @notice Get the AI-generated risk score for transaction data
    /// @param txData The transaction data to evaluate
    /// @return score Risk score in basis points (0-10000)
    /// @return level Risk level: 0=SAFE, 1=LOW, 2=MEDIUM, 3=HIGH, 4=CRITICAL
    function aiRiskScore(bytes calldata txData)
        external
        view
        returns (uint256 score, uint8 level);

    /// @notice Check if a transfer is flagged as anomalous
    /// @param sender The sender address
    /// @param amount The transfer amount in wei
    /// @return anomalyScore The anomaly score (higher = more anomalous)
    /// @return flagged True if the transfer exceeds the anomaly threshold
    function aiAnomalyCheck(address sender, uint256 amount)
        external
        view
        returns (uint256 anomalyScore, bool flagged);
}

IQoreConsensus.sol​

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

interface IQoreConsensus {
    /// @notice Get current PRISM-tuned consensus parameters
    /// @return blockTime Current target block time in milliseconds
    /// @return baseGasPrice Current base gas price in wei
    /// @return validatorSetSize Current active validator set size
    /// @return epoch Current PRISM epoch number
    function rlConsensusParams()
        external
        view
        returns (
            uint256 blockTime,
            uint256 baseGasPrice,
            uint256 validatorSetSize,
            uint256 epoch
        );
}

Esempi di utilizzo​

PQC Verify — Verificare una firma post-quantistica​

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "./interfaces/IQorePQC.sol";

contract PQCVerifier {
    IQorePQC constant PQC = IQorePQC(0x0000000000000000000000000000000000000A01);

    /// @notice Verify a PQC signature and revert if invalid
    function verifyOrRevert(
        bytes calldata pubkey,
        bytes calldata signature,
        bytes calldata message
    ) external view {
        bool valid = PQC.pqcVerify(pubkey, signature, message);
        require(valid, "PQC signature verification failed");
    }
}

Costo del gas: 25.000 base + 8 gas per byte di dati di input. Per una tipica verifica ML-DSA-87 (2592 + 4627 + byte del messaggio), prevedi circa 80.000-90.000 gas.

PQC Key Status — Verificare la registrazione dell'account​

contract PQCChecker {
    IQorePQC constant PQC_STATUS = IQorePQC(0x0000000000000000000000000000000000000A02);

    function requirePQCKey(address account) external view {
        (bool registered, , ) = PQC_STATUS.pqcKeyStatus(account);
        require(registered, "Account must have a registered PQC key");
    }
}

Costo del gas: 2.500 fisso.

AI Risk Score — Valutare il rischio di una transazione​

import "./interfaces/IQoreAI.sol";

contract RiskGate {
    IQoreAI constant AI = IQoreAI(0x0000000000000000000000000000000000000B01);

    uint8 constant MAX_ALLOWED_RISK = 2; // Allow up to MEDIUM

    function executeIfSafe(bytes calldata txData) external {
        (uint256 score, uint8 level) = AI.aiRiskScore(txData);
        require(level <= MAX_ALLOWED_RISK, "Risk level too high");

        // Proceed with execution...
    }
}

Livelli di rischio:

LivelloValoreIntervallo punteggio (bps)
SAFE00 - 1000
LOW11001 - 3000
MEDIUM23001 - 6000
HIGH36001 - 8500
CRITICAL48501 - 10000

Costo del gas: 50.000 fisso.

AI Anomaly Check — Segnalare trasferimenti sospetti​

contract AnomalyGuard {
    IQoreAI constant AI = IQoreAI(0x0000000000000000000000000000000000000B02);

    function safeTransfer(address sender, uint256 amount) external view {
        (uint256 anomalyScore, bool flagged) = AI.aiAnomalyCheck(sender, amount);

        if (flagged) {
            revert("Transfer flagged as anomalous");
        }
    }
}

Costo del gas: 40.000 fisso.

PRISM Consensus Params — Leggere lo stato del consenso​

contract ConsensusReader {
    IQoreConsensus constant RL = IQoreConsensus(
        0x0000000000000000000000000000000000000C01
    );

    function getBlockTime() external view returns (uint256) {
        (uint256 blockTime, , , ) = RL.rlConsensusParams();
        return blockTime;
    }

    function getCurrentEpoch() external view returns (uint256) {
        (, , , uint256 epoch) = RL.rlConsensusParams();
        return epoch;
    }
}

Costo del gas: 1.500 fisso.

CrossVM Bridge — Chiamare CosmWasm dall'EVM​

interface ICrossVM {
    function call(bytes calldata payload) external returns (bytes memory);
}

contract CrossVMExample {
    ICrossVM constant CROSSVM = ICrossVM(
        0x0000000000000000000000000000000000000901
    );

    function callCosmWasm(
        string memory contractAddr,
        string memory executeMsg
    ) external returns (bytes memory) {
        bytes memory payload = abi.encode(contractAddr, executeMsg, uint256(0));
        return CROSSVM.call(payload);
    }
}

Costo del gas: 50.000 base + costo di esecuzione del contratto di destinazione. Vedi Cross-VM Interoperability per i dettagli.

Posizioni dei file delle interfacce​

I file delle interfacce Solidity sono disponibili nel repository per l'importazione diretta:

contracts/
  interfaces/
    IQorePQC.sol
    IQoreAI.sol
    IQoreConsensus.sol
    ICrossVM.sol

Installali nel tuo progetto Hardhat o Foundry:

# Copy interfaces to your project
cp -r contracts/interfaces/ my-project/contracts/interfaces/

Oppure referenziali tramite il percorso di import nei tuoi file Solidity:

import "./interfaces/IQorePQC.sol";
import "./interfaces/IQoreAI.sol";
import "./interfaces/IQoreConsensus.sol";

Prossimi passi​