The story of Hal Finney, an extraordinary cryptographic activist (main contributor to PGP), and his idea of “Reusable Proofs Of Work”. He was also one of the first Bitcoin users (downloading Bitcoin on the day it was released), receiving the first Bitcoin transaction ever from Satoshi him/herself!

submitted by /u/TillAntonio
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Bitcoin – The Currency of the Internet

Dear Miners, we strongly recommend you DON’T UPGRADE your S9 devices with the new Bitmain firmware. It is not compatible with BIP310 standard and as a result also not compatible with @slush_pool. We are working hard on providing our own fix asap and will keep you posted.

Dear Miners, we strongly recommend you DON'T UPGRADE your S9 devices with the new Bitmain firmware. It is not compatible with BIP310 standard and as a result also not compatible with @slush_pool. We are working hard on providing our own fix asap and will keep you posted. submitted by /u/CosmicHemorroid
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Bitcoin – The Currency of the Internet

Bitcoin is an adversarial network; by my count there were 68 attempts in the past week to feed an invalid block to my node. There was also an attempt to create 234,512 BTC out of thin air. This is why we don’t trust, we verify.

Bitcoin is an adversarial network; by my count there were 68 attempts in the past week to feed an invalid block to my node. There was also an attempt to create 234,512 BTC out of thin air. This is why we don't trust, we verify. submitted by /u/Bitcoin_21
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Bitcoin – The Currency of the Internet