Skip to content

nopperabbo/hash256-auto

BranchesTags

Repository files navigation

HASH256 Auto Miner untuk Vast.ai

Full automation: miner + auto-sell HASH→ETH + guardian (gas/price/loss stop).

Dua mode eksekusi:

  • 🧪 DRY-RUN (npm run bench) — hashrate benchmark tanpa wallet, tanpa ETH. Cocok buat test infrastructure + kalibrasi GPU.
  • 🚀 PRODUCTION (npm start) — full miner + auto-sell. Butuh wallet burner + 0.015 ETH.

Kenapa butuh ETH di production mode?

HASH256 arsitekturnya on-chain PoW Ethereum:

  • GPU lo bisa compute keccak256 tanpa wallet (gratis)
  • Tapi setelah nemu solusi, miner HARUS submit contract.mine(nonce) ke Ethereum mainnet
  • Setiap mine() call = transaction = butuh ETH untuk gas (~$2.34/TX)
  • Bukan pilihan — whitepaper confirms, kontrak ABI confirms (ga ada sponsored / meta-tx variant)

Di browser miner hash256.org lo "ga perlu ETH" karena:

  • Browser ~2 MH/s, difficulty sekarang 2^44
  • Expected time nemu 1 solusi di browser: ~100 hari
  • Lo cuma run 5-30 menit = ga pernah nemu = ga pernah submit = ga pernah bayar gas
  • Di GPU 4x RTX 5090, lo bakal nemu solusi tiap ~6 menit = 10 TX/jam = pasti butuh ETH

Arsitektur

orchestrator.js
  ├─ spawn child: hash256-mine/miner.js (OpenCL miner)
  └─ loop setiap SWAP_POLL_SEC:
       ├─ baca basefee, HASH price, ETH price
       ├─ cek stop conditions (basefee/price/runtime/loss)
       ├─ kalau HASH balance >= SELL_MIN_HASH → swap ke ETH via KyberSwap
       └─ log ke ./logs/*.log

Kalau kondisi STOP kena, orchestrator kill miner + auto-swap sisa HASH + exit clean.

Stop conditions (auto-exit)

Trigger Default Env var
Basefee > X gwei 3 MAX_BASEFEE_GWEI
HASH price < $X 0.08 MIN_HASH_USD
Runtime > X menit 480 (8h) MAX_RUNTIME_MIN
Loss > $X 40 STOP_ON_LOSS_USD

1. Setup di Vast.ai

Pilih instance

  • Rekomendasi berdasarkan diskusi: 4x RTX 5090 ($1.607/hr) atau 1x H100 SXM France ($1.472/hr)
  • Template: Nvidia CUDA (Ubuntu 22.04) atau image dengan nvidia-smi working
  • Disk: minimum 20 GB (cukup buat Node + miner)
  • Buka SSH port; lo bakal jalanin via terminal

SSH + bootstrap

ssh root@<vast-host> -p <port>

# upload file dari laptop lo via scp (di laptop):
# scp -P <port> -r /path/to/hash256-vast-auto/ root@<vast-host>:/root/

cd /root/hash256-vast-auto
chmod +x setup.sh
./setup.sh

Script setup.sh akan:

  1. Install Node 20, build tools, OpenCL headers, clinfo, jq
  2. Register NVIDIA OpenCL ICD (agar GPU kedetect)
  3. Verify clinfo -l menampilkan GPU lo
  4. Clone + build mrfunntastiic/hash256-mine (OpenCL miner binary)
  5. Setup package.json + install ethers + dotenv

Kalau clinfo -l kosong setelah setup → FATAL. Biasanya driver mismatch; pilih instance lain.

2A. DRY-RUN: Hashrate benchmark (NO WALLET, NO ETH)

Lakukan ini DULU sebelum fund wallet. 60 detik, gratis, validate semua:

cd ~/hash256
npm run bench

Output bakal kasih lo:

  • Hashrate real GPU lo dalam GH/s
  • Projection: waktu per solution di difficulty sekarang
  • ROI projection @ HASH=$0.22: berapa $/jam untuk win rate 25%/50%/70%/100%
  • Decision guidance: lanjut production atau ganti instance

Contoh output:

[...] Hashrate avg: 12.847 GH/s
[...] Expected time per solution (solo): 22.83 min
[...] Solutions per hour (solo): 2.63
[...] Win 50%: revenue=$28.93/hr  gas=$6.15/hr  net=$22.78/hr

Kalau hashrate < expected (misal 4x 5090 cuma 20 GH/s padahal estimasi 50 GH/s):

  • Cek nvidia-smi → ada semua GPU ter-detect?
  • Cek OpenCL: miner cuma pake 1 GPU default (single-device). Multi-GPU butuh spawn parallel instances. Lihat section "Multi-GPU scaling" di bawah.

2B. PRODUCTION: Isi .env (butuh ETH)

cp .env.example .env
nano .env

WAJIB: PRIVATE_KEY harus wallet BURNER. Jangan pernah pakai wallet utama.

RPC_URL=https://ethereum-rpc.publicnode.com
PRIVATE_KEY=0xBURNER_PRIVATE_KEY
PRIORITY_FEE_GWEI=2
GPU_BATCH_SIZE=67108864

AUTO_SELL=true
SELL_MIN_HASH=50           # swap HASH ke ETH tiap akumulasi 50 HASH
SELL_SLIPPAGE_BPS=200      # 2% slippage
SWAP_POLL_SEC=60           # guardian tick interval

MAX_BASEFEE_GWEI=3         # stop kalau gas > 3 gwei
MIN_HASH_USD=0.08          # stop kalau HASH price < $0.08
MAX_RUNTIME_MIN=480        # stop after 8 jam
STOP_ON_LOSS_USD=40        # stop kalau rugi > $40 USD

Top up burner wallet

Kirim 0.015 ETH ($52) ke burner wallet. Ini buat:

  • Gas miner submit TX (mine()): ~0.0007 ETH per submit
  • Gas approve HASH (one-time, ~0.001 ETH)
  • Gas swap HASH→ETH (~0.002 ETH per swap)

3. Test swap (penting, jalankan SEBELUM production)

npm run test-swap

Output:

  • Tampilkan ETH + HASH balance
  • Kalau HASH balance > 1: dry-run route via KyberSwap, tampilkan rate
  • Tanpa --execute: cuma simulasi
  • Dengan --execute: eksekusi real swap 1 HASH → ETH

Test dulu dengan --execute sebelum production buat validate approval flow + router address correct:

npm run test-swap -- --execute

Verify di Etherscan: TX sukses, balance HASH berkurang 1, balance ETH nambah sedikit.

4. Launch production

mkdir -p logs
npm start 2>&1 | tee logs/run.log

Atau biar tetap jalan setelah SSH disconnect, pakai tmux:

apt-get install -y tmux
tmux new -s hash
npm start 2>&1 | tee logs/run.log
# detach: Ctrl-B lalu D
# reattach: tmux attach -t hash

5. Monitor

tail -f logs/guardian.log
tail -f logs/miner.log
tail -f logs/swap.log

Orchestrator log tiap menit: elapsed, basefee, HASH price, approx PnL, balance.

Contoh log sukses

[...] [main] spawning miner: node miner.js --backend opencl
[...] opencl 8.2 GH/s | 8389152b hashes
[...] FOUND via opencl
[...] TX sent: 0xabcd...
[...] Success block: 25070123
[...] [main] tick elapsed=5.2m basefee=0.134gw hash=$0.2134 pnl≈$12.45 hashBal=100.0
[...] [main] autosell trigger: 100 HASH >= 50
[...] routing: 100.0 HASH -> ETH
[...] swap tx sent: 0xefgh...
[...] swap SUCCESS block 25070140, expected 0.0061 ETH

6. Manual stop

# kalau running di foreground: Ctrl-C
# tmux: tmux attach -t hash → Ctrl-C
# force: pkill -f orchestrator

Orchestrator handle SIGINT clean: kill miner → final swap sisa HASH → exit.

Troubleshooting

clinfo -l kosong → OpenCL ga nemu GPU. Restart instance atau pilih host lain.

OpenCL miner belum dibuild → re-run sh scripts/build-opencl.sh di ~/hash256/hash256-mine/.

insufficient funds di miner log → ETH wallet kering. Top up lagi.

execution reverted InsufficientWork → lo kalah race. Normal; guardian akan track ratio. Kalau > 70% revert, naikin PRIORITY_FEE_GWEI jadi 3-5.

Swap gagal route failed → KyberSwap belum route HASH. Cek Uniswap pool manually, atau coba 1inch/OKX aggregator (butuh modif swap.js).

Guardian shutdown basefee > 3 gwei → gas Ethereum naik. Normal, tunggu turun dulu sebelum restart.

Bench nunjukin hashrate cuma 1 GPU padahal rent 4x → Default miner single-device. Lihat "Multi-GPU scaling" di bawah.

Multi-GPU scaling

Miner binary (hash256-opencl) default cuma pake 1 OpenCL device (GPU pertama yang ke-detect). Buat rent 4x 5090 atau 2x 4090 maksimalin utilisasi, ada 2 opsi:

Opsi 1: Spawn multiple miner instance (simplest)

Tiap GPU = 1 process. Butuh env CUDA_VISIBLE_DEVICES per instance:

CUDA_VISIBLE_DEVICES=0 node ~/hash256/hash256-mine/miner.js --backend opencl &
CUDA_VISIBLE_DEVICES=1 node ~/hash256/hash256-mine/miner.js --backend opencl &
CUDA_VISIBLE_DEVICES=2 node ~/hash256/hash256-mine/miner.js --backend opencl &
CUDA_VISIBLE_DEVICES=3 node ~/hash256/hash256-mine/miner.js --backend opencl &
wait

⚠️ Tapi semua pake wallet yang sama = challenge yang sama = all 4 solve same problem = cuma 1 yang bakal submit successfully, 3 lainnya wasted compute.

Opsi 2: Multi-wallet, multi-instance (recommended untuk 4x GPU)

Generate 4 burner wallet, tiap GPU pake wallet berbeda:

# butuh modifikasi orchestrator.js buat handle multi-wallet
# ini advanced feature; buat sekarang, better rent 1x 5090 dulu
# dan scale horizontal kalau strategy terbukti profitable

Rekomendasi realistic

  • 1x H100 SXM = simplest, 1 wallet, ga ada issue scaling
  • 1x RTX 5090 = cheap entry, 1 wallet, easy
  • 2x/4x RTX 5090/4090 = lo butuh setup multi-wallet (complex), atau accept cuma 1 GPU yang kepake (wasted)

Untuk test awal: pilih single-GPU instance. Kalau profit terbukti, baru plan multi-instance deployment di shift berikutnya.

Ekonomi (rekap)

Dengan 4x RTX 5090 + HASH $0.22 + gas 0.13 gwei:

Win rate Net/jam 8h profit
80% +$112 +$900
50% +$65 +$520
25% +$20 +$160
10% (BE) $0 $0

Expected value realistic: +$200-600 per 8h shift.

Safety

  • Private key DI .env doang, jangan commit
  • Burner wallet wajib, jangan main wallet utama
  • .gitignore tambahin .env dan logs/
  • Stop-loss $40 default; adjust STOP_ON_LOSS_USD kalau mau lebih agresif
  • Pool liquidity cuma $200K: sekali swap > $10k bisa hit slippage > 5%. SELL_MIN_HASH=50 = ~$11 per swap, aman.

Roadmap opsional

  • Monitor TX success/revert rate real-time → kalau > 70% revert, auto-naikin priority fee
  • Multi-RPC rotate (publicnode + llamarpc + alchemy)
  • Flashbots bundle untuk lebih kompetitif
  • Discord/Telegram webhook alert

About

HASH256 ethereum mainnet auto-miner for Vast.ai: OpenCL miner + KyberSwap auto-sell + gas/price guardian

Resources

Readme
Activity

Stars

0 stars

Watchers

0 watching

Forks

0 forks
Report repository

Releases

No releases published

Packages

 
 
 

Contributors

Languages