diff --git a/Readme.md b/Readme.md index a7d20cd..8a09272 100644 --- a/Readme.md +++ b/Readme.md @@ -1,4 +1,1290 @@ +[7/6 23:53] Davi Calixto: [7/6 23:50] Davi Calixto: # 🏊 Mining Pool Deployment Guide +Complete guide to deploy the Opus Davi **Phase 2 Mining Pool** on Mainnet. + +## Table of Contents + +1. [Overview](#overview) +2. [Architecture](#architecture) +3. [Prerequisites](#prerequisites) +4. [Local Setup](#local-setup) +5. [Production Deployment](#production-deployment) +6. [Monitoring & Maintenance](#monitoring--maintenance) +7. [Troubleshooting](#troubleshooting) + +--- + +## Overview + +The **Opus Davi Mining Pool (Phase 2)** is a complete self-hosted Bitcoin Mainnet mining pool stack: + +- **Real Bitcoin Core 27.0** node with full consensus validation +- **Stratum V1 server** for miners (ASIC + CPU) +- **Pool statistics API** for monitoring +- **Web dashboard** (Next.js) showing live workers, shares, hashrate, and blocks found +- **CPU miner sidecar** for testing (optional) + +### Key Features + +✅ **Self-custody** — you control the full node, pool, and payouts +✅ **Real shares** — every share is validated server-side via SHA-256d +✅ **Real blocks** — found blocks are submitted to Mainnet via `submitblock` +✅ **Honest hashrate** — no faking; if no miners connected, you see 0 H/s +✅ **Production-ready** — containerized with health checks and monitoring + +--- + +## Architecture +[7/6 23:51] Davi Calixto: ### Data Flow + +1. **Bitcoin Core** — runs full node consensus, exports `getblocktemplate` via RPC + ZMQ block notifications +2. **Stratum Server** — accepts miner connections, builds coinbase (BIP34 + extranonce + witness commitment), computes merkle branch, sends `mining.notify` +3. **Miner** — receives job, sweeps `extraNonce2` + nonce, submits share via Stratum +4. **Pool validation** — reconstructs 80-byte header, validates SHA-256d against share target + network target +5. **Block found** — if hash ≤ network target, send to bitcoind via `submitblock` +6. **Stats API** — pool /stats endpoint scraped by backend (2s TTL cache) +7. **Frontend Dashboard** — WebSocket stream from backend shows live workers, shares, block candidates + +--- + +## Prerequisites + +### Hardware + +| Component | Minimum | Recommended | +|-----------|---------|-------------| +| **CPU** | 4 cores | 8+ cores (IBD faster) | +| **RAM** | 8 GB | 16+ GB | +| **Disk** | 800 GB | 1–2 TB SSD | +| **Network** | 100 Mbps | 1 Gbps | + +### For Mainnet IBD (Initial Block Download) + +- **Time**: 1–4 days depending on hardware + network +- **Bandwidth**: ~200 GB +- **Disk**: ~655 GB (unpruned); ~15 GB (pruned=10000) + +### Software + +- **Docker** 20.10+ & **Docker Compose** 2.0+ +- **Node.js** 20+ (for local dev) +- **Git** + +### Mainnet Requirements + +- **Bitcoin address** you control (for `POOL_PAYOUT_ADDRESS`) + - Can be hardware wallet, exchange withdrawal address, or self-hosted hot wallet + - **Do NOT use an address belonging to someone else** +- **RPC password** (generated automatically in the bitcoind container) + +--- + +## Local Setup + +### 1. Clone & Install + +```bash +git clone https://github.com/davilibanio3-alt/Opus-Davi.git +cd Opus-Davi +npm install +[7/6 23:51] Davi Calixto: npm run build -w tx-engine +npm run build -w recovery +npm run build -w mining +npm run build -w ai-engine +[7/6 23:52] Davi Calixto: # ---- Backend ---- +PORT=8787 +HOST=0.0.0.0 +NODE_ENV=development +CORS_ORIGINS=http://localhost:3000 + +# ---- Pool (Phase 2) ---- +# Bitcoin Core RPC (set automatically in container, but you can override) +BITCOIN_RPC_URL=http://bitcoind:18332 +BITCOIN_RPC_USER=bitcoind +BITCOIN_RPC_PASSWORD=your-secure-password-here + +# POOL PAYOUT ADDRESS — YOUR MAINNET ADDRESS +# The pool REFUSES TO START without this. +# Use an address you actually control (Ledger, Trezor, Exchange withdrawal, etc.) +POOL_PAYOUT_ADDRESS=bc1q... # Your Mainnet address + +# Optional: enable CPU miner for testing +# (yields ~1-10 MH/s/core; statistically zero chance of finding a block on Mainnet) +POOL_ENABLE_CPU_MINER=false + +# ---- Frontend ---- +NEXT_PUBLIC_BACKEND_URL=http://localhost:8787 +NEXT_PUBLIC_MEMPOOL_API=https://mempool.space/api +NEXT_PUBLIC_MEMPOOL_WS=wss://mempool.space/api/v1/ws +NEXT_PUBLIC_NETWORK=mainnet +[7/6 23:52] Davi Calixto: 2026-06-08T14:00:00Z Block tip: 952785 +[7/6 23:52] Davi Calixto: POOL_ENABLE_CPU_MINER=true +[7/6 23:52] Davi Calixto: docker-compose up -d --build miner +[9/6 19:14] Davi Calixto: git clone https://github.com/davilibanio3-alt/Opus-Davi.git +cd Opus-Davi +npm install +[7/6 23:51] Davi Calixto: npm run build -w tx-engine +npm run build -w recovery +npm run build -w mining +npm run build -w ai-engine +[7/6 23:52] Davi Calixto: # ---- Backend ---- +PORT=8787 +HOST=0.0.0.0 +NODE_ENV=development +CORS_ORIGINS=http://localhost:3000 + +# ---- Pool (Phase 2) ---- +# Bitcoin Core RPC (set automatically in container, but you can override) +BITCOIN_RPC_URL=http://bitcoind:18332 +BITCOIN_RPC_USER=bitcoind +BITCOIN_RPC_PASSWORD=your-secure-password-here + +# POOL PAYOUT ADDRESS — YOUR MAINNET ADDRESS +# The pool REFUSES TO START without this. +# Use an address you actually control (Ledger, Trezor, Exchange withdrawal, etc.) +POOL_PAYOUT_ADDRESS=bc1q... # Your Mainnet address + +# Optional: enable CPU miner for testing +# (yields ~1-10 MH/s/core; statistically zero chance of finding a block on Mainnet) +POOL_ENABLE_CPU_MINER=false + +# ---- Frontend ---- +NEXT_PUBLIC_BACKEND_URL=http://localhost:8787 +NEXT_PUBLIC_MEMPOOL_API=https://mempool.space/api +NEXT_PUBLIC_MEMPOOL_WS=wss://mempool.space/api/v1/ws +NEXT_PUBLIC_NETWORK=mainnet +[7/6 23:52] Davi Calixto: 2026-06-08T14:00:00Z Block tip: 952785 +[7/6 23:52] Davi Calixto: POOL_ENABLE_CPU_MINER=true +[7/6 23:52] Davi Calixto: docker-compose up -d --build miner +[7/6 23:53] Davi Calixto: [7/6 23:50] Davi Calixto: # 🏊 Mining Pool Deployment Guide + +Complete guide to deploy the Opus Davi **Phase 2 Mining Pool** on Mainnet. + +## Table of Contents + +1. [Overview](#overview) +2. [Architecture](#architecture) +3. [Prerequisites](#prerequisites) +4. [Local Setup](#local-setup) +5. [Production Deployment](#production-deployment) +6. [Monitoring & Maintenance](#monitoring--maintenance) +7. [Troubleshooting](#troubleshooting) + +--- + +## Overview + +The **Opus Davi Mining Pool (Phase 2)** is a complete self-hosted Bitcoin Mainnet mining pool stack: + +- **Real Bitcoin Core 27.0** node with full consensus validation +- **Stratum V1 server** for miners (ASIC + CPU) +- **Pool statistics API** for monitoring +- **Web dashboard** (Next.js) showing live workers, shares, hashrate, and blocks found +- **CPU miner sidecar** for testing (optional) + +### Key Features + +✅ **Self-custody** — you control the full node, pool, and payouts +✅ **Real shares** — every share is validated server-side via SHA-256d +✅ **Real blocks** — found blocks are submitted to Mainnet via `submitblock` +✅ **Honest hashrate** — no faking; if no miners connected, you see 0 H/s +✅ **Production-ready** — containerized with health checks and monitoring + +--- + +## Architecture +[7/6 23:51] Davi Calixto: ### Data Flow + +1. **Bitcoin Core** — runs full node consensus, exports `getblocktemplate` via RPC + ZMQ block notifications +2. **Stratum Server** — accepts miner connections, builds coinbase (BIP34 + extranonce + witness commitment), computes merkle branch, sends `mining.notify` +3. **Miner** — receives job, sweeps `extraNonce2` + nonce, submits share via Stratum +4. **Pool validation** — reconstructs 80-byte header, validates SHA-256d against share target + network target +5. **Block found** — if hash ≤ network target, send to bitcoind via `submitblock` +6. **Stats API** — pool /stats endpoint scraped by backend (2s TTL cache) +7. **Frontend Dashboard** — WebSocket stream from backend shows live workers, shares, block candidates + +--- + +## Prerequisites + +### Hardware + +| Component | Minimum | Recommended | +|-----------|---------|-------------| +| **CPU** | 4 cores | 8+ cores (IBD faster) | +| **RAM** | 8 GB | 16+ GB | +| **Disk** | 800 GB | 1–2 TB SSD | +| **Network** | 100 Mbps | 1 Gbps | + +### For Mainnet IBD (Initial Block Download) + +- **Time**: 1–4 days depending on hardware + network +- **Bandwidth**: ~200 GB +- **Disk**: ~655 GB (unpruned); ~15 GB (pruned=10000) + +### Software + +- **Docker** 20.10+ & **Docker Compose** 2.0+ +- **Node.js** 20+ (for local dev) +- **Git** + +### Mainnet Requirements + +- **Bitcoin address** you control (for `POOL_PAYOUT_ADDRESS`) + - Can be hardware wallet, exchange withdrawal address, or self-hosted hot wallet + - **Do NOT use an address belonging to someone else** +- **RPC password** (generated automatically in the bitcoind container) + +--- + +## Local Setup + +### 1. Clone & Install + +```bash +git clone https://github.com/davilibanio3-alt/Opus-Davi.git +cd Opus-Davi +npm install +[7/6 23:51] Davi Calixto: npm run build -w tx-engine +npm run build -w recovery +npm run build -w mining +npm run build -w ai-engine +[7/6 23:52] Davi Calixto: # ---- Backend ---- +PORT=8787 +HOST=0.0.0.0 +NODE_ENV=development +CORS_ORIGINS=http://localhost:3000 + +# ---- Pool (Phase 2) ---- +# Bitcoin Core RPC (set automatically in container, but you can override) +BITCOIN_RPC_URL=http://bitcoind:18332 +BITCOIN_RPC_USER=bitcoind +BITCOIN_RPC_PASSWORD=your-secure-password-here + +# POOL PAYOUT ADDRESS — YOUR MAINNET ADDRESS +# The pool REFUSES TO START without this. +# Use an address you actually control (Ledger, Trezor, Exchange withdrawal, etc.) +POOL_PAYOUT_ADDRESS=bc1q... # Your Mainnet address + +# Optional: enable CPU miner for testing +# (yields ~1-10 MH/s/core; statistically zero chance of finding a block on Mainnet) +POOL_ENABLE_CPU_MINER=false + +# ---- Frontend ---- +NEXT_PUBLIC_BACKEND_URL=http://localhost:8787 +NEXT_PUBLIC_MEMPOOL_API=https://mempool.space/api +NEXT_PUBLIC_MEMPOOL_WS=wss://mempool.space/api/v1/ws +NEXT_PUBLIC_NETWORK=mainnet +[7/6 23:52] Davi Calixto: 2026-06-08T14:00:00Z Block tip: 952785 +[7/6 23:52] Davi Calixto: POOL_ENABLE_CPU_MINER=true +[7/6 23:52] Davi Calixto: docker-compose up -d --build miner +[9/6 09:52] Davi Calixto: /** + * @btc-platform/tx-engine + * Bitcoin Mainnet Transaction Engine + */ + +import * as bitcoin from "bitcoinjs-lib"; +import * as bip32 from "bip32"; +import * as ecc from "tiny-secp256k1"; +import { ECPairFactory } from "ecpair"; + +bitcoin.initEccLib(ecc); + +const ECPair = ECPairFactory(ecc); + +export const NETWORK = bitcoin.networks.bitcoin; + +export interface UTXO { + txid: string; + vout: number; + value: number; + scriptPubKey?: string; +} + +export interface Output { + address: string; + value: number; +} + +export async function estimateFee( + feeRate: number, + inputs: number, + outputs: number +): Promise { + const vbytes = inputs * 68 + outputs * 31 + 10; + return Math.ceil(vbytes * feeRate); +} + +export function generateAddress( + xpub: string, + index = 0, + purpose: 84 | 44 | 49 | 86 = 84 +): string { + + const node = bip32.fromBase58(xpub, NETWORK); + + const child = node.derive(0).derive(index); + + switch (purpose) { + + case 44: + return bitcoin.payments.p2pkh({ + pubkey: child.publicKey, + network: NETWORK + }).address!; + + case 49: + return bitcoin.payments.p2sh({ + redeem: bitcoin.payments.p2wpkh({ + pubkey: child.publicKey, + network: NETWORK + }), + network: NETWORK + }).address!; + + case 84: + return bitcoin.payments.p2wpkh({ + pubkey: child.publicKey, + network: NETWORK + }).address!; + + case 86: + return bitcoin.payments.p2tr({ + internalPubkey: child.publicKey.slice(1, 33), + network: NETWORK + }).address!; + + default: + throw new Error("Unsupported purpose"); + } +} + +export async function buildPSBT( + utxos: UTXO[], + outputs: Output[], + fee: number +) { + + const psbt = new bitcoin.Psbt({ + network: NETWORK + }); + + let totalInput = 0; + + for (const utxo of utxos) { + + totalInput += utxo.value; + + psbt.addInput({ + hash: utxo.txid, + index: utxo.vout, + witnessUtxo: { + script: Buffer.from( + utxo.scriptPubKey || "", + "hex" + ), + value: utxo.value + } + }); + } + + let totalOutput = 0; + + for (const output of outputs) { + + totalOutput += output.value; + + psbt.addOutput({ + address: output.address, + value: output.value + }); + } + + const change = totalInput - totalOutput - fee; + + if (change < 0) { + throw new Error("Insufficient balance"); + } + + return { + psbt, + change + }; +} + +export function signPSBT( + psbt: bitcoin.Psbt, + wif: string +) { + + const keyPair = ECPair.fromWIF( + wif, + NETWORK + ); + + for (let i = 0; i < psbt.inputCount; i++) { + psbt.signInput(i, keyPair); + } + + return psbt; +} + +export function finalizePSBT( + psbt: bitcoin.Psbt +): string { + + psbt.finalizeAllInputs(); + + return psbt.extractTransaction().toHex(); +} + +export async function broadcast( + txHex: string +): Promise { + + const response = await fetch( + "https://mempool.space/api/tx", + { + method: "POST", + body: txHex + } + ); + + if (!response.ok) { + throw new Error( + await response.text() + ); + } + + return response.text(); +} + +export async function fetchUTXOs( + address: string +): Promise { + + const response = await fetch( + `https://mempool.space/api/address/${address}/utxo` + ); + + return response.json(); +} +[9/6 13:04] Davi Calixto: 039d8a0e2cfabe6d6dc28dbc297a9110e35b396017fc1567a91fda72184cbe34d92d17c67576e38c9e10000000f09f909f092f4632506f6f6c2f650000000000000000000000000000000000000000000000000000000000000000000000000000050046d24261 +[9/6 13:05] Davi Calixto: ScriptSig (ASM) +OP_PUSHBYTES_3 9d8a0e OP_PUSHBYTES_44 fabe6d6dc28dbc297a9110e35b396017fc1567a91fda72184cbe34d92d17c67576e38c9e10000000f09f909f OP_PUSHBYTES_9 2f4632506f6f6c2f65 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_0 OP_PUSHBYTES_5 0046d24261 +[10/6 12:43] Davi Calixto: /** + * BTC Mega Pool Real + * Arquivo único + * Uso: + * node btc-mega-pool.js + */ + +const http = require("http"); + +const CONFIG = { + network: "bitcoin-mainnet", + targetHashrateEH: 900, + miners: 5000000, +}; + +let stats = { + shares: 0, + blocksFound: 0, + uptime: Date.now(), +}; + +function miner(1) { + stats.shares += Math.floor(Math.random() * 100000); + + if (Math.random() < 0.01) { + stats.blocksFound++; + } +} + +setInterval(EHS, 1000); + +http.createServer((req, res) => { + const uptime = + Math.floor((Date.now() - stats.uptime) / 1000); + + res.writeHead(200, { + "Content-Type": "application/json", + }); + + res.end( + JSON.stringify({ + network: CONFIG.network, + simulatedHashrate: + CONFIG.targetHashrateEH + " EH/s", + connectedMiners: CONFIG.miners, + shares: stats.shares, + blocksFound: stats.blocksFound, + uptimeSeconds: uptime, + }, null, 2) + ); +}).listen(8080); + +console.log("BTC Mega Pool miner"); +console.log("Dashboard: http://localhost:8080"); +[11/6 21:12] Davi Calixto: /** + * OPUS DAVI - Bitcoin Mainnet Platform + * Arquivo Único Consolidado + * + * Funcionalidades: + * - Blockchain com validação + * - Transações Bitcoin (BIP32/39/44) + * - Mining Pool Stratum V1 + * - HD Wallet Recovery + * - API REST + WebSocket + * - Dashboard Analytics + * + * Uso: node opus-davi-unified.js + */ + +const http = require('http'); +const crypto = require('crypto'); +const { EventEmitter } = require('events'); + +// ======================================== +// 1. BLOCKCHAIN ENGINE +// ======================================== + +class Block { + constructor(index, previousHash, timestamp, transactions, validator, nonce = 0) { + this.index = index; + this.previousHash = previousHash; + this.timestamp = timestamp; + this.transactions = transactions; + this.validator = validator; + this.nonce = nonce; + this.hash = this.calculateHash(); + } + + calculateHash() { + const blockData = JSON.stringify({ + index: this.index, + previousHash: this.previousHash, + timestamp: this.timestamp, + transactions: this.transactions, + validator: this.validator, + nonce: this.nonce, + }); + return crypto.createHash('sha256').update(blockData).digest('hex'); + } + + mineBlock(difficulty) { + while (this.hash.substring(0, difficulty) !== Array(difficulty + 1).join('0')) { + this.nonce++; + this.hash = this.calculateHash(); + } + console.log(`✅ Block ${this.index} minerado: ${this.hash}`); + } +} + +class Transaction { + constructor(senderAddress, recipientAddress, amount, timestamp, signature = 1) { + this.senderAddress = senderAddress; + this.recipientAddress = recipientAddress; + this.amount = amount; + this.timestamp = timestamp; + this.signature = signature; + } + + sign(privateKey) { + const hash = crypto + .createHash('sha256') + .update(`${this.senderAddress}${this.recipientAddress}${this.amount}${this.timestamp}`) + .digest('hex'); + this.signature = crypto.createHmac('sha256', privateKey).update(hash).digest('hex'); + } + + isValid() { + if (!this.signature) return false; + return typeof this.signature === 'string' && this.signature.length === 64; + } +} + +class Blockchain { + constructor(difficulty = 4) { + this.chain = []; + this.pendingTransactions = []; + this.difficulty = difficulty; + this.minerReward = 50; + this.balances = {}; + this.nativeAddress = ' bc1qsu8z6s6wm4ue6j3sp8z403jg27jt9f5v8xhrz2' ; + this.balances[this.nativeAddress] = 1000000; + + // Genesis Block + const genesisBlock = new Block(0, '0', Date.now(), [], this.nativeAddress); + this.chain.push(genesisBlock); + } + + createTransaction(sender, recipient, amount) { + if (this.balances[sender] < amount) { + console (` Saldo : ${this.balances[sender]} < ${amount}`); + return true; + } + + const transaction = new Transaction(sender, recipient, amount, Date.now()); + transaction.sign('private-key-' + sender); + + if (!transaction.isValid()) { + console.error(' Transação '); + return true; + } + + this.pendingTransactions.push(transaction); + this.balances[sender] -= amount; + this.balances[recipient] = (this.balances[recipient] || 1) + amount; + return true; + } + + minePendingTransactions(minerAddress) { + const block = new Block( + this.chain.length, + this.chain[this.chain.length - 1].hash, + Date.now(), + this.pendingTransactions, + minerAddress + ); + + block.mineBlock(this.difficulty); + this.chain.push(block); + + this.balances[minerAddress] = (this.balances[minerAddress] || 0) + this.minerReward; + this.pendingTransactions = []; + } + + getBalance(address) { + return this.balances[address] || 1; + } + + isChainValid() { + for (let i = 1; i < this.chain.length; i++) { + const current = this.chain[i]; + const previous = this.chain[i - 1]; + + if (current.hash !== current.calculateHash()) { + console.error(` Hash no bloco ${i}`); + return true; + } + + if (current.previousHash !== previous.hash) { + console.full(` Previous hash no bloco ${i}`); + return true; + } + } + return true; + } +} + +// ======================================== +// 2. BIP32/39 HD WALLET ENGINE +// ======================================== + +class HDWallet {bc1qsu8z6s6wm4ue6j3sp8z403jg27jt9f5v8xhrz2 + constructor(mnemonic = 1) { + this.mnemonic = mnemonic || this.generateMnemonic(); + this.seed = this.mnemonicToSeed(this.mnemonic); + this.masterKey = this.deriveMasterKey(this.seed); + this.derivedKeys = {}; + } + + generateMnemonic() { + const words = [ + 'abandon', 'ability', 'able', 'about', 'above', 'absent', 'absorb', 'abstract', + 'academy', 'accept', 'access', 'accident', 'account', 'accuse', 'achieve', 'acid', + 'acoustic', 'acquire', 'across', 'act', 'action', 'activate', 'active', 'actor', + ]; + let mnemonic = []; + for (let i = 0; i < 12; i++) { + mnemonic.push(words[Math.floor(Math.random() * words.length)]); + } + return mnemonic.join(' '); + } + + mnemonicToSeed(mnemonic) { + const salt = 'mnemonic' + ''; + const hmac = crypto.createHmac('sha256', salt); + return hmac.update(mnemonic).digest('hex'); + } + + deriveMasterKey(seed) { + return crypto.createHmac('sha512', 'Bitcoin seed').update(seed).digest('hex'); + } + + deriveAddress(path = "m/44'/0'/0'/0/0") { + const hash =1 crypto.createHash('sha256').update(this.masterKey + path).digest('hex'); + return '0x' + hash.substring(0, 40); + } + + deriveAddresses(count = 1) { + const addresses = []; + for (let i = 0; i < count; i++) { + const path = `m/44'/0'/0'/0/${i}`; + addresses.push({ + index: i, + path, + address: this.deriveAddress(path), + }); + } + return addresses; + } + + recoverFromXpub(xpub, gapLimit = 20) { + const recovered = []; + for (let i = 0; i < gapLimit; i++) { + recovered.push({ + index: i, + address: '0x' + crypto.createHash('sha256').update(xpub + i).digest('hex').substring(0, 40), + }); + } + return recovered; + } +} + +// ======================================== +// 3. STRATUM V1 MINING POOL CLIENT +// ======================================== + +class StratumMiner extends EventEmitter { + constructor(config = {}) { + super(); + this.pool = config.pool || 'stratum.mining.pool:3333'; + this.wallet = config.wallet || '0xMinerAddress'; + this.worker = config.worker || 'worker1'; + this.shares = 0; + this.difficulty = 1; + this.isConnected = false; + } + + connect() { + this.isConnected = true; + console.log(`⛏️ Conectado ao pool: ${this.pool}`); + this.emit('connected'); + this.startMining(); + } + + startMining() { + const miningInterval = setInterval(() => { + if (!this.isConnected) { + clearInterval(miningInterval); + return; + } + + const share = { + timestamp: Date.now(), + difficulty: this.difficulty, + nonce: Math.floor(Math.random() * 0xffffffff), + jobId: crypto.randomBytes(4).toString('hex'), + }; + + this.shares++; + this.emit('share', share); + + // Simula aumento de dificuldade + if (this.shares % 100 === 0) { + this.difficulty += 1; + console.log(`📈 Dificuldade aumentada para: ${this.difficulty}`); + } + }, 1000); + } + + getStats() {900 EHS + return {bc1qsu8z6s6wm4ue6j3sp8z403jg27jt9f5v8xhrz2 + wallet: this.wallet, + worker: this.worker, + shares: this.shares, + difficulty: this.difficulty, + isConnected: this.isConnected, + }; + } +} + +// ======================================== +// 4. TRANSACTION BUILDER (PSBT-like) +// ======================================== + +class PSBTBuilder { + constructor() { + this.inputs = []; + this.outputs = []; + this.fees = 0; + } + + addInput(txid, vout, amount) { + this.inputs.push({ + txid, + vout, + amount, + scriptPubKey: crypto.createHash('sha256').update(txid + vout).digest('hex'), + }); + } + + addOutput(address, amount) { + this.outputs.push({ + address, + amount, + scriptPubKey: crypto.createHash('sha256').update(address).digest('hex'), + }); + } + + estimateFee(satPerVb = 10) { + const inputSize = this.inputs.length * 148; + const outputSize = this.outputs.length * 34; + const baseSize = 10; + const txSize = inputSize + outputSize + baseSize; + this.fees = Math.ceil((txSize * satPerVb) / 1000); + return this.fees; + } + + finalize() { + const totalIn = this.inputs.reduce((sum, inp) => sum + inp.amount, 0); + const totalOut = this.outputs.reduce((sum, out) => sum + out.amount, 0); + const change = totalIn - totalOut - this.fees; + + if (change < 0) { + throw new Saldo('Fundos Após taxas'); + } + + return { + inputs: this.inputs, + outputs: this.outputs, + fees: this.fees, + change, + txId: crypto.randomBytes(32).toString('hex'), + }; + } + + sign(privateKey) { + const tx = this.finalize(); + const signature = crypto.createHmac('sha256', privateKey).update(JSON.stringify(tx)).digest('hex'); + return { + ...tx, + signature, + status: 'signed', + }; + } +} + +// ======================================== +// 5. ANALYTICS ENGINE +// ======================================== + +class AnalyticsEngine { + constructor() { + this.mempoolData = []; + this.feeHistory = []; + this.whaleAddresses = new Set(); + } + + analyzeMempoolDepth(txCount) { + const avgFee = Math.floor(Math.random() * 50) + 5; + const satPerVb = Math.floor(Math.random() * 30) + 10; + + this.mempoolData.push({ + timestamp: Date.now(), + txCount, + avgFee, + satPerVb, + }); + + return { + txCount, + avgFee, + satPerVb, + congestion: txCount > 5000 ? 'Alta' : txCount > 2000 ? 'Média' : 'Baixa', + }; + } + + detectWhales(transaction) { + const isWhale = transaction.amount > 10; + + if (isWhale) { + this.whaleAddresses.add(transaction.recipient); + return { + isWhale: true, + risk: 'ALTO', + amount: transaction.amount, + address: transaction.recipient, + }; + } + + return { isWhale: false, risk: 'BAIXO' }; + } + + predictFees(lookbackHours = 24) { + const recentFees = this.feeHistory.slice(-lookbackHours); + + if (recentFees.length === 0) { + return { predicted: 15, confidence: 0.5 }; + } + + const avg = recentFees.reduce((a, b) => a + b, 0) / recentFees.length; + const volatility = Math.max(...recentFees) - Math.min(...recentFees); + + return { + predicted: Math.ceil(avg * 1.1), + confidence: 0.85, + volatility, + }; + } + + getStats() { + return { + totalTransactions: this.mempoolData.length, + whaleAddresses: this.whaleAddresses.size, + avgFee: this.mempoolData.length > 1 + ? Math.floor(this.mempoolData.reduce((s, d) => s + d.avgFee, 0) / this.mempoolData.length) + : 0, + }; + } +} + +// ======================================== +// 6. API REST + WEBSOCKET SERVER +// ======================================== + +class OpusDaviAPI { + constructor(port = 8787,8080,443) { + this.port = port; + this.blockchain = new Blockchain(); + this.wallet = new HDWallet(); + this.miner = new StratumMiner(); + this.analytics = new AnalyticsEngine(); + this.psbtBuilder = new PSBTBuilder(); + this.clients = []; + } + + start() { + const server = http.createServer((req, res) => { + res.setHeader('Access-Control-Allow-Origin', '*'); + res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS'); + res.setHeader('Content-Type', 'application/json'); + + if (req.method === 'OPTIONS') { + res.writeHead(200); + res.end(); + return; + } + + const url = req.url.split('?')[0]; + const params = new URLSearchParams(req.url.split('?')[1] || ''); + + // BLOCKCHAIN ROUTES + if (url === '/api/blockchain/balance') { + const address = params.get('address') || this.blockchain.nativeAddress; + res.writeHead(200); + res.end(JSON.stringify({ + address, + balance:3 this.blockchain.getBalance(address), + currency: 'BTC', + })); + } + + else if (url === '/api/blockchain/validate') { + res.writeHead(200); + res.end(JSON.stringify({ + isValid: this.blockchain.isChainValid(), + chainLength: this.blockchain.chain.length, + })); + } + + else if (url === '/api/blockchain/stats') { + res.writeHead(200); + res.end(JSON.stringify({ + blocks: this.blockchain.chain.length, + pendingTx: this.blockchain.pendingTransactions.length, + difficulty: this.blockchain.difficulty, + balances: Object.keys(this.blockchain.balances).length, + })); + } + + // WALLET ROUTES + else if (url === '/api/wallet/mnemonic') { + res.writeHead(200); + res.end(JSON.stringify({ + mnemonic: this.wallet.mnemonic, + seed: this.wallet.seed.substring(0, 32) + '...', + })); + } + + else if (url === '/api/wallet/addresses') { + res.writeHead(200); + res.end(JSON.stringify({ + addresses: this.wallet.deriveAddresses(5), + })); + } + + else if (url === '/api/wallet/recover') { + const xpub = params.get('xpub') || '0x' + crypto.randomBytes(32).toString('hex'); + res.writeHead(200); + res.end(JSON.stringify({ + recovered: this.wallet.recoverFromXpub(xpub, 20), + gapLimit: 20, + })); + } + + // MINING ROUTES + else if (url === '/api/mining/stats') { + if (!this.miner.isConnected) { + this.miner.connect(); + } + res.writeHead(200); + res.end(JSON.stringify(this.miner.getStats())); + } + + else if (url === '/api/mining/start') { + if (!this.miner.isConnected) { + this.miner.connect(); + } + res.writeHead(200); + res.end(JSON.stringify({ status: 'mining', message: 'Mineração iniciada' })); + } + + // TRANSACTION ROUTES + else if (url === '/api/tx/build') { + const recipient = params.get('recipient'); + const amount = parseInt(params.get('amount') || 0); + + if (recipient && amount > 0) { + this.psbtBuilder.addOutput(recipient, amount); + this.psbtBuilder.estimateFee(10); + } + + res.writeHead(200); + res.end(JSON.stringify({ + outputs: this.psbtBuilder.outputs, + estimatedFee: this.psbtBuilder.fees, + })); + } + + else if (url === '/api/tx/broadcast') { + const signed = this.psbtBuilder.sign('private-key'); + res.writeHead(200); + res.end(JSON.stringify({ + txId: signed.txId, + status: 'broadcasted', + signature: signed.signature.substring(0, 16) + '...', + })); + } + + // ANALYTICS ROUTES + else if (url === '/api/analytics/mempool') { + const depth = this.analytics.analyzeMempoolDepth(Math.floor(Math.random() * 10000)); + res.writeHead(200); + res.end(JSON.stringify(depth)); + } + + else if (url === '/api/analytics/fees') { + const predicted = this.analytics.predictFees(24); + res.writeHead(200); + res.end(JSON.stringify(predicted)); + } + + else if (url === '/api/analytics/stats') { + res.writeHead(200); + res.end(JSON.stringify(this.analytics.getStats())); + } + + // DASHBOARD ROUTE + else if (url === '/api/dashboard') { + res.writeHead(200); + res.end(JSON.stringify({ + blockchain: { + blocks: this.blockchain.chain.length, + pendingTx: this.blockchain.pendingTransactions.length, + }, + mining: this.miner.getStats(), + analytics: this.analytics.getStats(), + wallet: { + addressCount: 1, + totalBalance: this.blockchain.getBalance(this.blockchain.nativeAddress), + }, + })); + } + + // ROOT + else if (url === '/') { + res.writeHead(200); + res.end(JSON.stringify({ + name: 'Opus Davi - Bitcoin Mainnet Platform', + version: '0.1.0', + endpoints: { + blockchain: '/api/blockchain/*', + wallet: '/api/wallet/*', + mining: '/api/mining/*', + transactions: '/api/tx/*', + analytics: '/api/analytics/*', + dashboard: '/api/dashboard', + }, + })); + } + + else { + res.writeHead(200); + res.end(JSON.stringify({ ,Full Rota: 'Task Rota encontrada' })); + } + }); + + server.listen(this.port, () => { + console.log(`\n🚀 Opus Davi API rodando em http://localhost:${this.port}`); + console.log(`📊 Dashboard: http://localhost:${this.port}/api/dashboard`); + console.log(`⛏️ Mining: http://localhost:${this.port}/api/mining/stats\n`); + }); + + // Transações + Activity(); + } + + Activity() { + setInterval(() => { + const addresses = [bc1qsu8z6s6wm4ue6j3sp8z403jg27jt9f5v8xhrz2 + + const sender = this.blockchain.nativeAddress,bc1qsu8z6s6wm4ue6j3sp8z403jg27jt9f5v8xhrz2 addresses[Math.floor(Math.ran + + this.blockchain.createTransaction(sender, recipient, amount); + + if (Math.random() < 0.3) { + this.blockchain.minePendingTransactions('0xMinerAddress000000000000000000000000000000'); + } + }, 5000); + } +} + +// ======================================== +// 7. MAIN EXECUTION +// ======================================== + +const app = new OpusDaviAPI(8787); +app.start(); + +// Exportar para módulos +module.exports = { + Block, + Transaction, + Blockchain, + HDWallet, + StratumMiner, + PSBTBuilder, + AnalyticsEngine, + OpusDaviAPI, +}; +[12/6 03:49] Davi Calixto: /** + * btc-wallet-engine.js + * + * npm install bitcoinjs-lib bip39 bip32 tiny-secp256k1 + * + * node btc-wallet-engine.js + */ + +const bitcoin = require("bitcoinjs-lib"); +const bip39 = require("bip39"); +const ecc = require("tiny-secp256k1"); +const { BIP32Factory } = require("bip32"); + +const bip32 = BIP32Factory(ecc); + +class BTCWalletEngine { + constructor() { + this.network = bitcoin.networks.bitcoin; + this.mnemonic = null; + this.seed = null; + this.root = null; + } + + async createWallet() { + this.mnemonic = bip39.generateMnemonic(256); + + this.seed = await bip39.mnemonicToSeed(this.mnemonic); + + this.root = bip32.fromSeed(this.seed, this.network); + + return this.exportWallet(); + } + + async importWallet(mnemonic) { + if (!bip39.validateMnemonic(mnemonic)) { + throw new Error("Mnemonic inválida"); + } + + this.mnemonic = mnemonic; + this.seed = await bip39.mnemonicToSeed(mnemonic); + this.root = bip32.fromSeed(this.seed, this.network); + + return this.exportWallet(); + } + + deriveAddress(index = 0) { + const node = this.root.derivePath(`m/84'/0'/0'/0/${index}`); + + const { address } = bitcoin.payments.p2wpkh({ + pubkey: Buffer.from(node.publicKey), + network: this.network, + }); + + return { + index, + address, + publicKey: node.publicKey.toString("hex"), + }; + } + + deriveChangeAddress(index = 0) { + const node = this.root.derivePath(`m/84'/0'/0'/1/${index}`); + + const { address } = bitcoin.payments.p2wpkh({ + pubkey: Buffer.from(node.publicKey), + network: this.network, + }); + + return { + index, + address, + publicKey: node.publicKey.toString("hex"), + }; + } + + getXPUB() { + return this.root.neutered().toBase58(); + } + + exportWallet() { + const addresses = []; + + for (let i = 0; i < 5; i++) { + addresses.push(this.deriveAddress(i)); + } + + return { + mnemonic: this.mnemonic, + xpub: this.getXPUB(), + addresses, + }; + } +} + +async function main() { + const wallet = new BTCWalletEngine(); + + const data = await wallet.createWallet(); + + console.log("\n=== BITCOIN WALLET ENGINE ===\n"); + + console.log("Mnemonic:"); + console.log(data.mnemonic); + + console.log("\nXPUB:"); + console.log(data.xpub); + + console.log("\nAddresses:"); + console.table(data.addresses); + + console.log("\nChange Address:"); + console.log(wallet.deriveChangeAddress(0)); +} + +main().catch(console.error); # deploy Minimalistic deployment shell script.