《星际穿越》与跨维度预言机：引力异常如何成为区块链的跨链桥

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract TimeDilationBridge {
    struct Planet {
        string name;
        uint256 timeDilationFactor; // 1 hour on planet = X years on Earth
        uint256 lastSyncedBlock;
        uint256 lastSyncedTime;
        bool isActive;
    }

    struct CrossChainMessage {
        address sender;
        bytes data;
        uint256 sourceTimestamp;
        uint256 earthTimestamp;
        bool verified;
    }

    mapping(bytes32 => Planet) public planets;
    mapping(bytes32 => CrossChainMessage[]) public messages;
    address public oracleNode;
    uint256 public constant EARTH_YEAR = 365 days;

    event MessageSent(bytes32 indexed planetId, address indexed sender, uint256 dilatedTime);
    event MessageVerified(bytes32 indexed planetId, uint256 earthTime);

    modifier onlyOracle() {
        require(msg.sender == oracleNode, "Only oracle can verify");
        _;
    }

    constructor() {
        oracleNode = msg.sender;
    }

    function registerPlanet(bytes32 planetId, string memory name, uint256 factor) external {
        Planet storage p = planets[planetId];
        p.name = name;
        p.timeDilationFactor = factor;
        p.lastSyncedBlock = block.number;
        p.lastSyncedTime = block.timestamp;
        p.isActive = true;
    }

    function sendFromPlanet(bytes32 planetId, bytes calldata data) external {
        Planet storage p = planets[planetId];
        require(p.isActive, "Planet not active");

        // Calculate dilated time based on factor
        uint256 planetTime = block.timestamp - p.lastSyncedTime;
        uint256 earthTime = planetTime * p.timeDilationFactor;

        CrossChainMessage memory msg_ = CrossChainMessage({
            sender: msg.sender,
            data: data,
            sourceTimestamp: p.lastSyncedTime + planetTime,
            earthTimestamp: block.timestamp,
            verified: false
        });

        messages[planetId].push(msg_);
        emit MessageSent(planetId, msg.sender, p.lastSyncedTime + planetTime);
    }

    function verifyMessage(bytes32 planetId, uint256 messageIndex) external onlyOracle {
        CrossChainMessage storage msg_ = messages[planetId][messageIndex];
        require(!msg_.verified, "Already verified");
        msg_.verified = true;
        emit MessageVerified(planetId, block.timestamp);
    }

    function getMessageCount(bytes32 planetId) external view returns (uint256) {
        return messages[planetId].length;
    }
}

import hashlib
import time
from dataclasses import dataclass, field
from typing import Optional

@dataclass
class GravityMessage:
    sender: str
    receiver: str
    book_pattern: list[int]  # Book positions as data
    gravity_signature: str
    earth_timestamp: float
    verified: bool = False

class FiveDimensionBridge:
    def __init__(self):
        self.messages: list[GravityMessage] = []
        self.timeline: dict[str, list[float]] = {}
        self.consensus_nodes: set[str] = set()

    def generate_gravity_signature(self, sender: str, data: list[int]) -> str:
        """Gravity wave acts as a signature mechanism"""
        raw = sender + ''.join(map(str, data)) + str(time.time())
        return hashlib.sha256(raw.encode()).hexdigest()

    def send_gravity_message(self, sender: str, receiver: str, data: list[int]) -> GravityMessage:
        """Send a message through gravity waves (across dimensions)"""
        signature = self.generate_gravity_signature(sender, data)
        msg = GravityMessage(
            sender=sender,
            receiver=receiver,
            book_pattern=data,
            gravity_signature=signature,
            earth_timestamp=time.time()
        )
        self.messages.append(msg)
        return msg

    def verify_message(self, msg_index: int, receiver: str) -> bool:
        """Verify message using the receiver's 'trust key'"""
        msg = self.messages[msg_index]
        if msg.receiver != receiver:
            return False

        # Reconstruct gravity signature
        expected_sig = self.generate_gravity_signature(msg.sender, msg.book_pattern)
        if expected_sig != msg.gravity_signature:
            return False

        msg.verified = True
        return True

    def decode_message(self, msg_index: int) -> Optional[str]:
        """Decode book pattern into Morse code"""
        msg = self.messages[msg_index]
        if not msg.verified:
            return None

        # Simple decoding: book positions -> binary -> ASCII
        binary = ''.join(str(b % 2) for b in msg.book_pattern)
        chars = []
        for i in range(0, len(binary), 8):
            if i + 8 <= len(binary):
                char_code = int(binary[i:i+8], 2)
                if 32 <= char_code <= 126:
                    chars.append(chr(char_code))
        return ''.join(chars)

# Simulate the interstellar communication
bridge = FiveDimensionBridge()

# Cooper sends a message through gravity
book_data = [1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0]  # Binary pattern
msg = bridge.send_gravity_message("Cooper", "Murph", book_data)
print(f"Sent gravity message: {msg.gravity_signature[:16]}...")

# Murph receives and verifies it
verified = bridge.verify_message(0, "Murph")
print(f"Message verified by Murph: {verified}")

# Decode the message
decoded = bridge.decode_message(0)
print(f"Decoded message: {decoded}")

# Time dilation simulation
print(f"\n--- Time Dilation on Miller's Planet ---")
earth_time = 7 * 365 * 24 * 3600  # 7 years in seconds
millers_time = 3600  # 1 hour in seconds
dilation_factor = earth_time / millers_time
print(f"1 hour on Miller's = {dilation_factor:.0f}x Earth time")
print(f"Time dilation factor for contract: {dilation_factor:.0f}")

class GravityEquation {
  constructor() {
    this.chains = new Map();
    this.branches = new Map();
    this.events = [];
  }

  addChain(name, finalityTime = 12, latency = 100) {
    this.chains.set(name, {
      name,
      finalityTime, // seconds to finality
      latency,      // ms transaction latency
      blocks: []
    });
  }

  addBranch(baseChain, branchName, forkPoint) {
    const base = this.chains.get(baseChain);
    if (!base) throw new Error('Base chain not found');

    const branch = {
      name: branchName,
      baseChain,
      forkPoint,
      blocks: [...base.blocks.slice(0, forkPoint + 1)],
      active: true
    };
    this.branches.set(branchName, branch);
    return branch;
  }

  async sendCrossChainTransaction(fromChain, toChain, data, throughGravity) {
    const source = this.chains.get(fromChain);
    const target = this.chains.get(toChain);
    if (!source || !target) throw new Error('Chain not found');

    const tx = {
      id: `tx-${Date.now()}-${Math.random().toString(36).substr(2, 6)}`,
      from: fromChain,
      to: toChain,
      data,
      sourceBlock: source.blocks.length,
      gravitySignature: null,
      confirmed: false,
      timestamp: Date.now()
    };

    // If using gravity (cross-dimensional bridge), add latency
    if (throughGravity) {
      return new Promise((resolve) => {
        setTimeout(() => {
          // Gravity wave travels through 5D space
          const gravityLatency = 1000 * 365 * 7; // 7 years in ms
          tx.gravitySignature = `GRAVITY-${Date.now()}`;
          
          setTimeout(() => {
            tx.confirmed = true;
            target.blocks.push(tx);
            this.events.push({
              type: 'CROSS_CHAIN_CONFIRMED',
              tx,
              gravityTime: gravityLatency,
              timestamp: Date.now()
            });
            resolve(tx);
          }, 100);
        }, 100);
      });
    }

    // Normal transaction
    return new Promise((resolve) => {
      setTimeout(() => {
        tx.confirmed = true;
        target.blocks.push(tx);
        resolve(tx);
      }, source.latency);
    });
  }

  async simulateInterstellar() {
    console.log('=== Simulating Interstellar Cross-Chain Bridge ===\n');

    // Add chains
    this.addChain('Earth', 12, 100);
    this.addChain('MillerPlanet', 1, 5);
    this.addChain('Gargantua', 3600, 1000);

    // Create branch (Plan A vs Plan B fork)
    this.addBranch('Earth', 'PlanA', 5);
    this.addBranch('Earth', 'PlanB', 5);

    // Send normal transaction
    const tx1 = await this.sendCrossChainTransaction('Earth', 'MillerPlanet', 
      { type: 'exploration', data: 'Initial survey' }, false);
    console.log(`Earth -> MillerPlanet: ${tx1.id} (latency: normal)`);

    // Send through gravity (cross-chain bridge)
    const tx2 = await this.sendCrossChainTransaction('Earth', 'Gargantua',
      { type: 'gravity_data', equation: 'Tesseract Protocol' }, true);
    console.log(`Earth -> Gargantua (gravity bridge): ${tx2.id}`);

    // Simulate time dilation
    console.log('\n--- Time Dilation Effect ---');
    const earthTime = Date.now();
    const millersTime = earthTime / 61320; // 1 hour = 7 years
    console.log(`Earth time: ${earthTime} ms`);
    console.log(`Miller's time: ${millersTime.toFixed(2)} ms (dilated)`);

    // Check chain states
    console.log('\n--- Chain States ---');
    for (const [name, chain] of this.chains) {
      console.log(`${name}: ${chain.blocks.length} blocks, finality: ${chain.finalityTime}s`);
    }

    console.log('\n--- Branch States ---');
    for (const [name, branch] of this.branches) {
      console.log(`${name}: ${branch.blocks.length} blocks, active: ${branch.active}`);
    }
  }
}

const simulation = new GravityEquation();
simulation.simulateInterstellar();