Kalle Rosenbaum @kalle@mastodon.cloud
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Bitcoin enthusiast. Author of Grokking Bitcoin https://www.manning.com/books/grokking-bitcoin
Joined Apr 2017
1,000 Lego sets attack
I explain and contemplate a double spending attack that targets many low-value transactions instead of few high-value transactions.
I'm prepared to stand corrected.
Kalle Rosenbaum
boosted
TIL: There's a caterpillar, which, after shedding its exoskeletons, carries around all its previous heads, stacked on top of each other. It is called the Mad Hatterpillar.
It's been a few years since I last fiddled with iptables. Now there's a new kid on the block:
nftables
Should I switch? Will I regret trying? I'm only doing basic stuff like NAT and port forwarding.
Kalle Rosenbaum
boosted
Banks are reverse ransomware.
Ransomware locks you out of your data and requires a payment to release it.
Banks lock you out of your money and require your private data to release it.
In both cases, there is no guarantee that they will honour their side of the contract, and sometimes, they just don't.
OMG! I can't believe my @ManningBooks@twitter.com book Grokking #Bitcoin was just sent off to printing! Expect release in about four weeks! 🍾🍸🥳https://www.manning.com/books/grokking-bitcoin
Very interested thread on "quantum resistance". Pretty much common sense, but needs to be said.
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RT @JSmith_Crypto@twitter.com
I've recently noticed an uptick in claims of "quantum resistance" from cryptocurrency projects. This thread explains how to differentiate which are BS and which are legit.
https://twitter.com/JSmith_Crypto/status/1108008518131638272
Seems like my old contraction timer for Android is still around. Never give birth without it! https://play.google.com/store/apps/details?id=se.rosenbaum.varktimer&hl=en
80's country music is indistinguishable from 80's pop.
Change my mind.
You often hear that the blockchain is #bitcoin's database. I'd say that the UTXO set is the database. The blockchain is just the history of all database update commands (BTC transactions = DBMS transactions).
RT @bquittem@twitter.com
Take a deep breath.
10 years ago, some guy released some code & a 9 page whitepaper.
This code bootstrapped itself into the most powerful computer network in history.
Casually redefined money.
Then slurped up 100s of billions of dollars.
Oh and it’s 100% self funded.
RT @garybernhardt@twitter.com
This tweet made me wonder: if we actually printed the dependencies of a "hello world" create-react-app app, how tall would the stack of paper be? Let's calculate. https://twitter.com/thomasfuchs/status/1103700462107164672
Re #bitcoin unit naming proposals: You can't centrally control language. Let it emerge.
RT @thomasfuchs@twitter.com
Legendary Apollo project programmer Margaret Hamilton, next to a printout of the node_modules directory listing for her first Hello World react app
RT @hrdng@twitter.com
This. Consider showing respect for Nakamoto not by naming things after him but by using the name he gave to the currency he created: bitcoin.
RT @Codiox@twitter.com
These beauties are worth $0.0002 each. 1 year ago this was Venezuela's higher denomination bill.
RT @aantonop@twitter.com
Watch out! https://twitter.com/jonf3n/status/1062380032889368576
Någon som begrep frågan om #bitcoin i @svt@twitter.com På Spåret? Inte jag, men svaret var tydligen "blockchain".
Remember: Always select the least voted option of @pwuille@twitter.com's quizzes. Easy. The hard part is finding that option without answering.
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RT @pwuille@twitter.com
Assuming the Bitcoin hashrate is perfectly constan@pwuille@twitter.comll blocks have exact timestamps (corresponding to the time they were mined). Which of the options below is closest to the expected time retargetting periods will take?
https://twitter.com/pwuille/status/1098288749098795008
RT @WhalePanda@twitter.com
This is both hilarious, scary and the perfect example of why we need Bitcoin. Venmo worried about the word "Cuban".
h/t https://www.reddit.com/r/Bitcoin/comments/astx9b/my_friend_bought_me_a_sandwich_at_a_stall_and_i/
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- 1BF2B3B3B378681273E31D12A6B3E1062329C00A
Bitcoin enthusiast. Author of Grokking Bitcoin https://www.manning.com/books/grokking-bitcoin
Joined Apr 2017
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