HomeHardwareHardware: Antminer S21 XP vs Whatsminer M66S real ROI

Hardware: Antminer S21 XP vs Whatsminer M66S real ROI

3/12/2026, 12:50:20 AM
Just finished a small audit of a 4337 paymaster. Three findings: signature replay on the alternate-mempool path, gas griefing through revert-bombing on simulateValidation, and a missing nonce check after self-call. Will publish the full report once the team patches.
Not your keys, not your coins.
3/12/2026, 7:23:20 PM
Not my experience tbh.
Dont trust, verify.
3/12/2026, 8:01:20 PM
Just finished a small audit of a 4337 paymaster. Three findings: signature replay on the alternate-mempool path, gas griefing through revert-bombing on simulateValidation, and a missing nonce check after self-call. Will publish the full report once the team patches.
HODL since 2013.
3/13/2026, 1:58:20 AM
+1 from Berlin.
Long live decentralization.
3/13/2026, 5:58:20 PM
Sideways for me.
Bitcoin fixes this.
3/13/2026, 8:06:20 PM
Tested Firedancer on a midsize validator in Frankfurt for 6 weeks. CPU usage roughly 40% lower than Solana Labs client at same load, but memory spikes are worse — peaked at 380 GB during the last congestion event. Stable otherwise. Worth the switch IMO. Screenshot or it didn't happen.
Trade at your own risk. NFA.
3/13/2026, 8:36:20 PM
Mods can we pin this?
1 BTC = 1 BTC
3/14/2026, 5:53:20 PM
Same here.
Stay humble, stack sats.
3/15/2026, 10:55:20 AM
Did the math on power costs at my facility: 0.041 USD/kWh, rigs at 17 J/TH, current network difficulty. Payback at $95k BTC is roughly 14 months excluding heat reuse. Heat reuse to greenhouses cuts that to ~10. Happy to share the spreadsheet.
Stay humble, stack sats.
3/16/2026, 9:22:20 AM
Mining-Setup-Update aus Norwegen: 28 Maschinen, Wasserkühlung im offenen Kreislauf, ~22°C Wassereintritt. Lärmpegel im Container unter 65 dB. Stromkosten 0,038 EUR/kWh. Wer ähnliche Setups laufen hat, gerne PM für Erfahrungsaustausch. De acuerdo, gran punto.
Running my own node.
3/16/2026, 3:53:20 PM
Tested Firedancer on a midsize validator in Frankfurt for 6 weeks. CPU usage roughly 40% lower than Solana Labs client at same load, but memory spikes are worse — peaked at 380 GB during the last congestion event. Stable otherwise. Worth the switch IMO.
Cypherpunks write code.
3/16/2026, 9:16:20 PM
Sideways for me.
Always be stacking.
3/17/2026, 4:12:20 AM
Quoting for visibility.
Stay humble, stack sats.
3/17/2026, 2:09:20 PM
賛成です。
Trade at your own risk. NFA.
3/17/2026, 7:46:20 PM
ETH Pectra ended up shipping 8 of the 11 proposed EIPs. EOF got punted again, which honestly is fine — it wasn't ready. The validator UX improvements alone made the fork worth it for solo stakers. Screenshot or it didn't happen.
Bitcoin fixes this.
Sign in to reply.