Kαλά ναι, σίγουρα. Εγώ για να σου πω την αλήθεια, πιστεύω πως όταν το Bitcoin κάνει το halving του και ανέβει η αποτίμηση του σε σχέση με το ευρώ, όλοι αυτοί που αναφέρεις θα έρθουν μόνοι τους να ρωτήσουν :p Ήδη άρχισαν. Ένας γνωστός μου με το που είδε το πρόσφατο 30%+ τρελάθηκε κι άρχιζε να βάζει τα λεφτά του σε shitcoins. Ένας άλλος άρχισε να με ρωτάει αν είναι αργά τώρα για να μπει. Και τώρα μιλάμε για το 30%+, περίμενε να δεις τι έχει να γίνει σε 2-3 χρόνια. Η ιστορία επαναλαμβάνεται... Μα να μην έχει αλλάξει τίποτα; Προσωπικά πάντως θα ξαναχάριζα BTC αλλά ποτέ πάλι σε paper wallet. Θα έβαζα τον άλλον να φτιάξει mobile wallet έστω να του τα στείλω στο address χωρίς να δω το priv key. Εγώ αυτό που προτείνω πάντα είναι να παίξει με το testnet. Εκεί όλα τα λάθη συγχωρούνται. Κι αυτό το λέω μόνο σε άτομα που βλέπω πως ενδιαφέρονται τεχνικά κυρίως. Αν ο άλλος θεωρεί "δουλειά" να κατεβάσει ένα πρόγραμμα και να αφιερώσει μια ωρίτσα να δει πως δουλεύει, δεν τα αξίζει... |
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This guy got robbed, got his Binance funds stolen, and after all... He took a picture of his upside-down room, and uploaded it to Twitter. Hasn't he learned his lesson yet? Don't share with people that you own a coin People you love can have that piece of information. It's a little bit of an asshole attitude to hide the fact that you're involved into bitcoin from your family and relatives. I mean, don't yell at it in a family gathering that you own 1.56 BTC, but for instance you should inform your other half about your belongings. |
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Θα ήθελα να ρωτήσω όμως, πόσους ανθρώπους έχετε καταφέρει να πείσετε να αποκτήσουν bitcoin σε self custody; Κανέναν. Δεν είναι εύκολο θέμα συζήτησης το bitcoin, πόσο μάλλον να πείσεις κάποιον να αγοράσει και υπό self-custody. Όταν είμαι σε μια παρέα και το θέμα πάει εκεί, θα πω τη γνώμη μου και θα μετρήσει, κι όποιος έχει απορία (που έχουν πολλοί) θα με ρωτήσει, αλλά δύσκολα να ενδιαφερθεί κάποιος τόσο πολύ. Οι περισσότεροι γνωστοί μου θεωρούν πως είναι ένα χειραγωγικό χρηματιστηριακό όργανο. Ε, μου το λένε, τους απαντάω, και επικρατεί μια κατάσταση που θυμίζει πολιτικές διαφωνίες σε Χριστουγεννιάτικο τραπέζι. Βοηθάω άτομα που είναι ήδη χωμένοι, μέσω του φόρουμ. Μου φτάνει αυτή η ηθική ικανοποίηση. Το να μπεις στο παιχνίδι είναι δυστυχώς ή ευτυχώς κατά μεγάλο παράγοντα ατομική ευθύνη. Η πείρα μου αυτό λέει. Πρέπει μόνος να το συνειδητοποιήσεις ότι είναι χρήσιμο. Όσο καλός φίλος / αδερφός / γιος κι αν είσαι, αν δεν ενδιαφέρεται ο άλλος, δεν... |
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Σίγουρα αποτύχαμε σαν local board. Νομίζω είμαστε ένα σκαλί πιο πάνω από το Ευβραϊκό board, το οποίο παίρνει την πρωτιά με μόλις 2500 posts.  Γενικά στην Ελλάδα είναι χαμηλό το επίπεδο, και το βλέπουμε καθημερινά σε διάφορα πράγματα. Αν θέλουμε να εστιάσουμε στο bitcoin, ας πούμε απλώς πως είτε το βλέπουν σαν τζόγο είτε σαν "κακό χρήμα του dark net". Μετά την καραντίνα, υπήρξε πείνα. Και η πείνα ρίχνει το επίπεδο (και ανεβάζει πολύ το τζόγο, χαμός γίνεται από τις στοιχηματικές). Και ας αναλογιστούμε ότι είμαστε σε διαρκή πείνα από το 2009, οπότε το επίπεδο φαντάζομαι να πέφτει γραμμικά. Επιβεβαιώνουν και γνωστοί μου δάσκαλοι σε δημοτικά σχολεία. Το επίπεδο παιδιών-γονιών είναι πιο κάτω από ποτέ. Να μιλήσω λίγο και για μένα. Ξεκίνησα να ασχολούμαι με το bitcoin πρώτη φορά το 2020, λίγο αφότου ήρθαν τα πρώτα κρούσματα covid στην Ελλάδα. Όταν μπήκε η πρώτη καραντίνα ήξερα που θα επένδυα το χρόνο μου. Έπειτα από 3 χρόνια συνεχούς προσπάθειας να το καταλάβω και να διαδώσω αυτή τη γνώση, έχω να πω πως δεν έχω βαρεθεί ούτε λίγο. Είναι απλά άξιο σεβασμού το πόσο έξυπνο είναι σαν concept. Σε βάζει στο τριπάκι να αναθεωρήσεις για πολλά πράγματα-- πρώτα απ' όλα τι είναι χρήμα. Αυτοί είναι μερικοί μόνο από τους παπατζήδες που άρμεξαν κόσμο και κοσμάκη με αφορμή την ευκαιρία δήθεν του crypto, έβγαλαν δικά τους νομίσματα, παρείχαν απατηλές υπηρεσίες και έγιναν εκατομμυριούχοι σε βάρος αμαθών Ελλήνων. Θα ήθελα να αναφερθώ και σε αυτό. Όλοι λέμε πόσο απατεώνες είναι αυτοί, αλλά δε μιλάει κανείς για τους ανθρώπους που αγοράζουν τα άχρηστα tokens τους. Μπορούμε να τους ονομάσουμε αμαθείς, αλλά μέχρι πότε; Κάποια στιγμή, θα είναι απλά ανεύθυνο. Είναι ενήλικες, και έχουν την ευθύνη των οικονομικών τους. Συμβάλλουν στην χρηματοδότηση συνειδητά. Όταν μια ομάδα ατόμων έρχεται και σου εγγυάται εύκολο κέρδος (βλ. conclavio), δεν φταις εσύ καθόλου αν το αγοράσεις; Είμαι σίγουρος πως αν όχι η πλειοψηφία, ένα τεράστιο μέρος των ανθρώπων που "επένδυαν" σε ελληνικά ponzi / pyramid schemes γνώριζαν εκ των προτέρων ότι πρόκειται για απάτη, αλλά ήθελαν να επωφεληθούν από την θέση τους στην ιεραρχία. Είναι ένοχοι. |
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Im going to look at the Fairphone thing. Im familiar with Purism, their prices are a scam That's exactly why I'm not buying any of those phones. They're overcharging; probably their targeted audience is privacy concerned users who aren't competent with phones. If you dig it up a little bit, you can buy yourself a 300 EUR worth of Pixel, with Graphene installed, and it'll be both more secure and private than any of those. It is quite difficult to lug around everywhere (unless it's a macbook air or something else that's light), requires a WiFi access point, is inconvenient for scanning QR codes and is overall quite cumbersome to use for making payments when you're on the street. - Or just a small laptop.
- You can use mobile data.
- I guess they can send you the address over some communication channel if QR is not a practical option. In the worst, type the address.
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 Back to ignore. |
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Where are the flawed coinjoins? Still waiting for evidence. o_e_l_e_o never produced any.  |
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o_e_l_e_o - Wasabi coinjoins are flawed.
Kruw - Show me the evidence.
o_e_l_e_o - Here's a bunch of flawed coinjoins.
Kruw - Bu-bu-but, here's a coinjoin which you cannot de-anonymize.
Extreme reasoning there. Wasabi team must be proud of you. Lol, I am now starting to get why Samourai puts their "competitor" in quotation marks every time.
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Your best course is to stake an address in here. Something like your address followed by a signed message; "BTC_pokaop here, staking my address in a shiny morning of November 6th, 2023". You cannot recover a hacked account without a signed message: Recovering hacked/lost accounts. You can use strong, encrypted password and the like, but in the end, just as with Bitcoin, the private key provides evidence of ownership. Definitely backup a seed phrase which can be used to derive your staked address, and never use that wallet for any other purpose. |
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Hmm! Someone claims they can crack asymmetric cryptography with a smartphone, but we aren't allowed to know how. Somehow we are allowed to know they are capable of accomplishing it, tho.  Even if he was capable, which I bet he isn't, this would probably be one of the dumbest things to ever attempt to do. Stating publicly that you, <enter your full name>, have figured out a way to make most encrypted stuff, insecure, followed by a paper which demonstrates it. You would be found dead under a bridge in a random country before tomorrow morning. (If NSA hadn't managed to hire you yet) |
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Is there any safe device that looks like a phone that runs Linux or something? Over a dozen billion, called smartphones. No, seriously. Look. If you sell small amounts of bitcoin, then getting yourself a Pixel with GrapheneOS installed wouldn't be a bad idea. It comes a lot cheaper than Fairphone. The TL;DR of Graphene is that it focuses on security and privacy. That can work, and it doesn't make you look like a socially awkward fella with Arch Linux, having an NSFW anime-girl wallpaper. (No offense to those who do! ) But seriously, why not a laptop? Having an Electrum wallet, running Ubuntu doesn't tell me anything. We are not living in the 00s anymore. |
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It is hard for newbies to tell the difference between storing bitcoin in a centralized exchange and storing fiat in a bank account. There is chaotic difference, where do I begin.
- If a centralized exchange gets hacked, they go bankrupt, no funds for you. If a bank is hacked, transactions can be reversed.
- Even in a scenario where the bank goes bankrupt, there is legislation which grants you access to your money through deposit insurances; in the worst, the government intervenes.
- When deposing coins to a centralized exchange, you're agreeing this is practically not yours and that the company can use it however they like; many are caught implementing fractional reserve. (I know, the largest banks can do that too, but there is clearly lack of regulation here)
- Centralized exchanges are more frequently shut down, as they are targeted by hackers etc.
- There is no alternative to banking when it comes to electronic fiat. There is apparent alternative to using a centralized exchange; in fact, the very purpose of bitcoin is that alternative in the first place.
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Hello, I've read your entire topic, and I'd like to share my opinion with you, I'd like to suggest Trust Wallet as one of the best wallets I've used It has an amazing work plan Pardon me, but do you evaluate the wallet software only by the UI? Because, frankly, that is the only part of Trust wallet that I would find kinda appealing. It is one of the worst pieces of wallet software in the Bitcoin ecosystem by far. It is closed-source, relies on somebody else's server to operate, and it owned by Binance. The three musketeers of a recipe for disaster in crypto space. Look on what happened with Atomic wallet. People lost fortunes and the developers didn't even tell us what went wrong. Re-installing a similar software is a sign of recklessness and lack of responsibility, simply put. |
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In my opinion, the weakness of the bluewallet wallet is that it is not a wallet for storing large amounts of assets in the long term. There is nothing inherently wrong with BlueWallet per se. It is in fact one of the most reputable and reviewed pieces of Bitcoin software in the space. It's the rationale; smartphones are the worst devices to trust with your bitcoin. There are too many things to account for when it comes to security implications; the integrity of the OS, the apps running in the background etc. It's generally the exact opposite of an air-gapped device; can practically connect to any network at any time. @hollowdoor, if you're going to buy a decent amount of bitcoin, please take care of your security. There are numerous instances where individuals have lost their coins due to software exploits. |
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It's not about Wine, it's about the programs you want to install. Are they open-source, reputable etc.? Wine is just a compatibility layer that allows you to run Windows applications. In general, no. It can't do great harm if you haven't given the respective privileges as it provides a degree of isolation. But, again, it depends; it absolutely isn't foolproof defense. A better question would be: why use Wine, if for example Bitcoin Core can be directly used on Linux? Maybe they want to install a Windows application separately, that could be completely irrelevant with Bitcoin (i.e., a game). |
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An optimist would say you don't need to find all private keys, since many of them will lead to the same address. No, but I want to demonstrate how many private keys there are. The odds of finding a private key that corresponds to the same address, is about 1 in the 2^256 / 2^96 = 2^160. Even if you used 1000 super fast computers that make a total of 1 quadrillion searches per second, you'd still need more than 8 nonillion (10^30) days to cover half. If the age of the universe is 13.8 billion, then that'd be about 612,881,456,878,565,703 times the age of the universe. So, yeah. We're pretty safe with that hypothesis. |
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right but you left out that me walking to any grain of sand is a huge factor slower than having 1000 super fast pc's grinding out try after try after try. Picture my analogy for a moment. Even if you had 1000 super-duper fast PC, trying 1 quadrillion private keys per second, you would only manage to find 0.013% of the grains of sand per second, for one planet Earth. It'd take you 7501 seconds, or about an hour and a quarter to find all grains of sand in one planet Earth, and you'd still have 999,999,999,999 planets left; it'd take more than 43 trillion days to cover just half of the total grains. And after 86 trillion days, in glory and triumph, you'd have successfully searched 0.000000000000000000000000000000000000000000003% of the total private keys. |
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Scientists estimate that Earth contains 7.5 sextillion sand grains. That is 75 followed by 17 zeros. Lol. I wrote a great analogy to visualizing this earlier and used the same piece of information: Let me put it in this perspective. There are estimated to be 7.5 quintillion grains of sand in the Earth; that's 7.5 x 10^18. Now ignore the shape of our solar system, and make the hypothesis that there are a trillion clones of Earth, spinning around the Sun. That'd make the total grains of sand in our Solar system about 7.5 x 10^30. Stupidly large number there. Imagine if I told you to guess my chosen grain of sand, across this uncountable set of grains, and that I picked one at random, maybe at some corner of an ocean from Earth #623,546,123,002, or at a replica of Egypt from Earth #881,239,303,566. OP, read it. You'll get your answer. The difference between "being impossible" and being "being improbable" approaches zero. Super computers are no match for 128 bit encryption. Not even the total computational power provided for the security of the Bitcoin network can break anything beyond 90 bits. |
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Put differently, a breakthrough in mathematics that breaks ECDSA requires a lot more priors than a breakthrough in QC. Curiously, but: - how sure are we that this assertion is true? - would we still have the necessary resources given we find that breakthrough to accomplish this with classic computers? Yes that's right. Quantum computers will not beat BTC, because quantum technology is needed for world progress, DLT, 4IR (smart city, IOT, AI). I mean, how is even that relevant? Quantum computers " can" beat Bitcoin in theory, but we miss the resources to do it in practice, as far as I understand. And by the way, if it ever happens, it'd break the entire Internet, not just Bitcoin. Bitcoin can migrate to a quantum resistant algorithm long before it happens. |
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The odds of guessing someone's private key... Let me put it in this perspective. There are estimated to be 7.5 quintillion grains of sand in the Earth; that's 7.5 x 10^18. Now ignore the shape of our solar system, and make the hypothesis that there are a trillion clones of Earth, spinning around the Sun. That'd make the total grains of sand in our Solar system about 7.5 x 10^30. Stupidly large number there. Imagine if I told you to guess my chosen grain of sand, across this uncountable set of grains, and that I picked one at random, maybe at some corner of an ocean from Earth #623,546,123,002, or at a replica of Egypt from Earth #881,239,303,566. Guess what. The number of these grains are not even the 0.0000000000001% of the total valid Bitcoin private keys. Who says BTC keys are 10^77? They just rounded it down. Yes, total private keys are about 2^256, but if you round it down, it's pretty much ~1.1579 * 10^77. |
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