Use number_format() $value = 1234.7890;
$formattedValue = number_format($value,2); |
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The only reason I can think of why someone would need millions of addresses is spam/scam/extortion email
Bingo or a sad attempt at brute forcing addresses. |
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This is the worst thing I read today. Stop trying to steal and build something useful or maybe , your server goes blank...
Myself and directory.io will not stop until every last bitcoin is stolen. Also it's a 100% client-side driven app that runs entirely in the browser, there is no server -- we are unstoppable. |
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As we all know Greg hates bitcoinjs-lib. The bitcoinjs library is pretty clear about never re-using any address due to javascript constantly working against them for possible key leakage in signatures.
What it really comes down to is users wanting more features and options that bitcoin core doesn't satisfy, so other developers build it on different stacks. Case and point, bip39 mnemonics.
Bitcoin core does not utilize BIP39 at all, so I'm not sure why you are bringing it up in this thread as what people should use.
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I've had similar concerns about RNG when it comes to a mnemonic phrase, so I built one that takes your mouse entropy and then adds CSPRNG random bytes for additional entropy. It uses bitcoinjs-lib which is a well-known trusted library. Demo: https://coinables.github.io/bip39/ |
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What the frenchtoast are you talking about?  |
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I am having trouble understanding your question, but sounds like no. You need more than a few letters and numbers for a bitcoin address, whether it's for a QR code or something else you need the full address to be able to use it.
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Roll Under: $betAmt = 200; //example user input of bet amount
$probability = 30; //example user input percentage chance of a win
$multi = 100 / $probability; // this is your multiplier
$multi2 = $multi - 0.02; // this is your house edge
$grossProfit = $betAmt * $multi2;
$netProfit = $grossProfit - $betAmt;
$target = 100 / $multi; // target to roll under (same as probability)
Roll Over: $betAmt = 200; //example user input of bet amount
$probability = 30; //example user input percentage chance of a win
$multi = 100 / $probability; // this is your multiplier
$multi2 = $multi - 0.02; //house edge
$grossProfit = $betAmt * $multi2;
$netProfit = $grossProfit - $betAmt;
$target = 100 - $probability; //target to roll over
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Personally, I prefer playing games whenever I want, instead of getting 30-minute intervals due to being tied to the faucet part. Thanks for the suggestion. The 30 minute rule applies to new games either after you've busted or after you've cashed out. You can roll as many times as you like and you can play for longer than 30 minutes. The limit was to prevent someone from simply cashing out over-and-over to drain the faucet. |
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Re-hashing an old idea ( https://bitcointalk.org/index.php?topic=1135013.0) but as a testnet faucet this time. Currently just hosted on a private server for now, no domain (yet). We'll see how it goes. - Testnet Faucet, you get 10,000 testnet sats every 30 minutes - Cash out immediately or Play the dice game to increase the amount of testnet coins you receive - Reminder: Testnet coins have no value Let me know what you think of the idea. Adds a little fun for devs when they get testnet coins, and there's always someone who wants "a lot" of testnet coins and they can try their luck here (2% house edge). http://67.205.174.90/faucet/ |
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It's the same as directory.io, no one will steal any coins from this tool. If you're offended by a joke you need to relax, or learn more about big numbers and why 1 attempt every ~6 seconds that this site provides would take longer than the life of the universe to possibly find a collision. If you're still worried, migrate to multisig.
Regarding checksum question, the spins produce validate bip39 checksums.
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So... attempting to steal money from innocent bitcoin users?
Obviously, you could run this until the death of the sun and never find an address with a balance to steal from, so in that sense it is harmless, but I don't exactly agree with the principle behind it. Just because you found a wallet on the street doesn't mean the contents belong to you. Just because you find a private key/seed phrase collision doesn't mean the bitcoin within belongs to you.
Anytime you create a BIP39 wallet, with any software, you might find someone else's coins. The likelihood of getting a winning spin versus stumbling across them randomly while creating a new wallet are both practically zero %. But it's not zero. We all know it's essentially zero. But it's not. So that what makes the site fun, I thought so at least. Nobody is going to win, but they can try. Also like booblicker Vod posted above, it could be an educational tool for noobs to help understand really big numbers and how bitcoin takes advantage of them for security. |
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I'm trying the link on an Android device and see one or two words in a couple of boxes then all boxes go blank. Then, after about five seconds, information is displayed in the lower grey box. Basically, I can't see any of the rolled words.
Is 2048 the total number of words possible, or, a selection?
Thanks for the bug report, I appreciate it. I'm having unexpected positioning results based on browser and screen resolution. It's just a concept/demo for now. I'm testing on Macbook Air with safari, chrome and firefox, and it works. Also seems to work on my android on chrome. But people with ios phones are experiencing what you're describing, what browser are you using? I'll have to tinker around more and figure out the best way to achieve the positioning across multiple browsers and devices. |
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I don't see a point of re-doing directory.io... Maybe make it a slot machine casino style with mnemonic words instead of cherries, and let the user play for free. Spin until you find a balance. LOL
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Opendimes or use a bip39 generator offline and make something yourself that stores the mnemonic phrase and give that to them.
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round this up to 0.001 BTC/tBTC Perhaps to avoid people attempting to assign a specific value to tBTC you could offer a range of a lot of tBTC. For example: Borrowing 1-5 tBTC will cost X, 6-10 tBTC will cost Y, 10-20 tBTC will cost Z, etc Just a thought, its your tBTC do as you will, but maybe it will appease the forum gods if a value is less specific than 0,001 BTC/tBTC and instead based on a general amount |
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Is there any way for someone to hijack the transaction when you go online to sweep the wallet? I have been asking for a method where you do this whole process "Offline" and that the "Private Key" get encrypted, before you go "online" again to finalize the process.
You can build one with bitcoin libraries like nbitcoin or bitcoinjs (for example). Or use one already created by someone else like coinb.in by outkast or coldsigner( https://github.com/coinables/coldsigner) that I made. The ways these work is basically all you need to create an unsigned bitcoin transaction is (3) things: - the transaction ID,
- output position (vout) and;
- value.
This is the essential data of a UTXO, and this part is usually done online unless you saved this information ahead of time. You can now take this data (unsigned bitcoin transaction) offline, sign it with your WIF private key in a secure air-gapped environment, and then it is ready for broadcast. |
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Send a small amount first, and then send it back again to make sure you are happy with everything before sending across your main stash.
THIS. Simply practicing sending back and forth with small amounts several times until you get comfortable with the process is the best possible advice for someone who is new to holding their own keys. |
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