jm + blockchain   7

Bitcoin’s energy use got studied, and you libertarian nerds look even worse than usual | Grist
This is awful. What a waste:
Bitcoin’s energy footprint has more than doubled since Grist first wrote about it six months ago.

It’s expected to double again by the end of the year, according to a new peer-reviewed study out Wednesday. And if that happens, bitcoin would be gobbling up 0.5 percent of the world’s electricity, about as much as the Netherlands.

That’s a troubling trajectory, especially for a world that should be working overtime to root out energy waste and fight climate change. By late next year, bitcoin could be consuming more electricity than all the world’s solar panels currently produce — about 1.8 percent of global electricity, according to a simple extrapolation of the study’s predictions. That would effectively erase decades of progress on renewable energy.
energy  bitcoin  blockchain  cryptocurrencies  money  climate-change  planet  green 
3 days ago by jm
A quantitive analysis of the impact of arbitrary blockchain content on Bitcoin
'People put all sorts of things into the Bitcoin blockchain - some of it objectionable, some of it illegal. Now what?'
blockchain  bitcoin  ledger  immutability  internet  law  crime  papers 
8 weeks ago by jm
How $800k Evaporated from the PoWH Coin Ponzi Scheme Overnight
'In 282 lines of code, PoWH Coin managed to give away $800,000 in Etherium.'
etherium  blockchain  coding  powh  4chan  fail  fraud  cryptocurrency  javascript 
february 2018 by jm
terrible review for Solidity as a programming environment in HN
"Solidity/EVM is by far the worst programming environment I have ever encountered. It would be impossible to write even toy programs correctly in this language, yet it is literally called "Solidity" and used to program a financial system that manages hundreds of millions of dollars."


Via Tony Finch
blockchain  ethereum  programming  coding  via:fanf  funny  fail  floating-point  money  json  languages  bugs  reliability 
july 2017 by jm
Microsoft Security Essentials reporting false positives on the Bitcoin blockchain
Earlier today, a virus signature from the virus "DOS/STONED" was uploaded into the Bitcoin blockchain, which allows small snippets of text to accompany user transactions with bitcoin.  Since this is only the virus signature and not the virus itself, there apparently is no danger to users in any way.  However, MSE recognizes the signature for the virus and continuously reports it as a threat, and every time it deletes the file, the bitcoin client will simply re-download the missing blockchain.


What a heinous prank! Hilarity ensues (via gwire)
via:gwire  av  antivirus  false-positives  fp  blockchain  microsoft  bitcoin  pranks  viruses 
may 2014 by jm
Minimum Viable Block Chain
Ilya Grigorik describes the design of the Bitcoin/altcoin block chain algorithm. Illuminating writeup
algorithms  bitcoin  security  crypto  blockchain  ilya-grigorik 
may 2014 by jm

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