jmL¥For Miners: Controlling Crypto Mining Risks with Financial Tools.
https://read.cash/@Imgroot/for-miners-controlling-crypto-mining-risks-with-financial-tools-cae67dcb
https://whatsonchain.com/tx/8b901b354d6816f45a22ba16b93d0cbc4423d21df37504b32fa2c5e557c03252