去中心化科学DeSci：区块链上的学术出版与影视研究

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

contract DeSciJournal {
    struct Paper {
        bytes32 paperHash;
        address author;
        string title;
        string abstract;
        uint256 submissionDate;
        uint256 publicationDate;
        bool published;
        Review[] reviews;
        uint256 citationCount;
    }

    struct Review {
        address reviewer;
        uint256 score;
        string comments;
        uint256 timestamp;
        bool approved;
    }

    mapping(bytes32 => Paper) public papers;
    mapping(address => bytes32[]) public authorPapers;
    mapping(address => uint256) public reviewerReputation;
    uint256 public paperCount;

    event PaperSubmitted(bytes32 hash, address author, string title);
    event PaperPublished(bytes32 hash, uint256 date);
    event ReviewSubmitted(bytes32 hash, address reviewer, uint256 score);

    function submitPaper(bytes32 hash, string calldata title, 
                         string calldata abstract) external {
        papers[hash] = Paper({
            paperHash: hash,
            author: msg.sender,
            title: title,
            abstract: abstract,
            submissionDate: block.timestamp,
            publicationDate: 0,
            published: false,
            reviews: new Review[](0),
            citationCount: 0
        });
        authorPapers[msg.sender].push(hash);
        paperCount++;
        emit PaperSubmitted(hash, msg.sender, title);
    }

    function submitReview(bytes32 hash, uint256 score, 
                          string calldata comments, bool approved) external {
        Paper storage p = papers[hash];
        require(!p.published, "Already published");

        p.reviews.push(Review({
            reviewer: msg.sender,
            score: score,
            comments: comments,
            timestamp: block.timestamp,
            approved: approved
        }));

        reviewerReputation[msg.sender] += 10;
        emit ReviewSubmitted(hash, msg.sender, score);

        if (p.reviews.length >= 3) {
            uint256 avgScore = 0;
            uint256 approvals = 0;
            for (uint256 i = 0; i < p.reviews.length; i++) {
                avgScore += p.reviews[i].score;
                if (p.reviews[i].approved) approvals++;
            }
            avgScore /= p.reviews.length;
            if (avgScore >= 70 && approvals >= 2) {
                p.published = true;
                p.publicationDate = block.timestamp;
                emit PaperPublished(hash, block.timestamp);
            }
        }
    }

    function citePaper(bytes32 hash) external {
        Paper storage p = papers[hash];
        require(p.published, "Not published");
        p.citationCount++;
    }
}

import json
import random
from typing import Dict, List

class DeSciAnalyzer:
    def simulate_journal_metrics(self, n_papers: int = 50) -> Dict:
        papers = [{'citations': random.randint(0, 100), 'score': random.randint(50, 100)} 
                  for _ in range(n_papers)]
        return {
            'total_papers': n_papers,
            'total_citations': sum(p['citations'] for p in papers),
            'avg_score': sum(p['score'] for p in papers) / n_papers,
            'h_index': self._calculate_h_index(papers)
        }

    def _calculate_h_index(self, papers: List[Dict]) -> int:
        citations = sorted([p['citations'] for p in papers], reverse=True)
        for i, c in enumerate(citations):
            if c < i + 1:
                return i
        return len(citations)


analyzer = DeSciAnalyzer()
result = analyzer.simulate_journal_metrics()
print(json.dumps(result, indent=2))

const express = require('express');
const { ethers } = require('ethers');
const app = express();
app.use(express.json());

const DESCI_ABI = [
    "function submitPaper(bytes32 hash, string title, string abstract) external",
    "function submitReview(bytes32 hash, uint256 score, string comments, bool approved) external",
    "function citePaper(bytes32 hash) external",
    "event PaperSubmitted(bytes32 hash, address author, string title)",
    "event PaperPublished(bytes32 hash, uint256 date)"
];

class DeSciManager {
    constructor(providerUrl, journalAddress) {
        this.provider = new ethers.providers.JsonRpcProvider(providerUrl);
        this.journal = new ethers.Contract(journalAddress, DESCI_ABI, this.provider);
    }

    async submitPaper(privateKey, hash, title, abstract) {
        const wallet = new ethers.Wallet(privateKey, this.provider);
        const journal = this.journal.connect(wallet);
        const tx = await journal.submitPaper(hash, title, abstract);
        return await tx.wait();
    }
}

app.post('/api/desci/submit', async (req, res) => {
    const { privateKey, hash, title, abstract } = req.body;
    const manager = new DeSciManager(process.env.RPC_URL, process.env.DESCI_ADDRESS);
    const receipt = await manager.submitPaper(privateKey, hash, title, abstract);
    res.json(receipt);
});

app.listen(3025, () => {
    console.log('DeSci API running on port 3025');
});