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Thanks for the replies everyone. I didn't dare to check for a while because I thought it didn't have any replies. Hi there! A good idea, a very good one actually but maybe because people need to see it work across several sites. I'll give you a few to start off with, based on where I've played dice or know dice is popular:
1. Crypto.games
2. Bitsler
3. Bitvest
4. 999dice
5. Fairlay
6. Yolodice
7. Freebitco.in
It could be tricky but if you could really interface with regular casino software:
1. Sportsbet
2. FortuneJack
3. Bitcasino
4. Bitcoinrush
5. Betcoin
Get your code open source too. And have as much detail as possible for a newbie to understand how your extension verifies provably fair (maybe even a tutorial inside to teach them) and you might have something on your hands. Don't worry, new extensions will be difficult to break through as people rightly won't trust it. Maybe work with a couple of owners to suggest your extension.
Thanks for all the suggestions! I was planning to integrate more sites but got a bit discouraged to be honest. I will follow on with some of your suggestions. The library code is already open source but I will open source the UI code as well after some cleaning up. It sounds like a cool thing, but perhaps one of the reasons people don't check it out is the same I have: I am very cautious when it comes to crypto browser extensions because the risk of it being something that scams you just seems too high. Okay, you've shown the demo which looks cool. But I am sure you understand that it doesn't prove that the extension doesn't do anything additionally, such as, say, get the money out of the casino account when a person is logged in and checking if the bet was fair. If you find a way to show that it's safe to use the extension, I am sure it will help make it more popular. Good luck!
I understand your cautiousness. It doesn't request many permissions, for now I don't think it can even read or interact with the pages you visit even if it wanted to (it's just able to read the URL). I will probably make it fully open source and have instructions on compiling and installing by yourself. |
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Maybe I should have posted this in another forum? Project Development forum maybe? Kind of disappointed by the lack of replies  |
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Hi everyone. I'm happy to release Provably Fair, a browser extension that verifies provably fair bets. The game seeds/nonce can either be entered manually or populated automatically when clicking the extension on a Stake.com bet verification page. It supports all games on Stake.com but I'd love to add support for more games and sites (let me know in the comments!). Quick demo on Stake:  A longer demo on YouTube: https://www.youtube.com/watch?v=chAQkOZBTLsMy long term goal with this extension is to increase the adoption of bet verification and make it more widespread, especially among non technical players. To achieve this goal, it is crucial to reduce the friction of verifying bets and make it easy and understandable. For example, in the future, I'd like the extension to do automatically verify every bets in the background and automatically change client seeds to prevent a site from predicting game outcomes. It's not there yet, but it's on the roadmap! The extension is built with Rust + WebAssembly (fast!) for the verification library code. The library code is open source and available on GitHub (as well as a command line utility): https://github.com/lucasholder/fair. If you have no idea what provably fair is, I tried to do an ELI5 it here: https://fairdom.io/how-provably-fair-worksSupported games (compatible with Stake): - Blackjack
- Hilo
- Baccarat
- Diamond Poker
- Dice Roll
- Limbo
- Plinko
- Roulette Roll
- Keno
- Mines
- Video Poker
- Wheel
- Slots
- Crash
I'm happy to answer question and feel free to request support for other sites/games. Cheers, Lucas |
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Thank you so much and our reply was helpful. However, assuming I wanted using a script on chron, to check for transations in my wallet from an address, can that be possible?
You could, for example, hit Blockcypher's address API endpoint[1] to get the latest transaction and then use it to hit the endpoint posted above to get the data you need. Then do the rest of the handling on your code. [1] https://api.blockcypher.com/v1/btc/main/addrs/1ArgjWtWL8a2yshyeJUqtTtqgqKpZFGst5the main problem is parsing the JSON response that the API sends back which would require additional libraries that are designed to do that, and i don't think it is possible to do this with a simple script. If you're writing a shell script, you can use the jq tool for parsing the response and extracting the field(s) you want: https://stedolan.github.io/jq/tutorial/ |
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I noticed a lot of people sell prepaid virtual credit cards for Bitcoin in here. Anyone knows how the sellers go about making the cards? Doesn't Visa/Mastercard have KYC rules? And isn't it very expensive to become a credit card issuer?
Thanks.
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Agree. Not all nations have the technology to implement the cryptocurrency system in their economy. So I think that the currency of any nation will remain in its finances. If there will be the handling of cryptocurrencies in cities that have better technology infrastructure.
I have seen it in my country. When the banking system implemented mobile payment and not all citizens have access to a smartphone.
Recently, the Chinese government made it mandatory for the merchants to accept payments in physical cash, after promoting digital payments for more than a decade. A lot of the citizens (especially the elderly), still find it very challenging to use the online payment methods. And not all of them own smartphones. But for cryptocurrency users, we can get around this problem by making physical Bitcoins. Anyone remember the Casascius physical bitcoins? Do you have a source for this? In fact, I read exactly the opposite: that cash transactions were banned during the covid-19 epidemic (but I believe it was only a temporary ban). |
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Wonder what would happen if the government personally prohibited him from jumping off a bridge or from ingesting cyanide?
I consider myself libertarian-leaning but that just sounds like a stupid idea. There are better ways to promote and defend constitutional rights.
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First, forking doesn't necessarily means improving. Literally anyone with a basic knowledge of how to use a computer can fork Bitcoin.
Second, an alternative currency would have to improve very substantially over Bitcoin to overtake it. A small incremental improvement would not be enough to overtake Bitcoin, there is just too much inertia and work involved. Perhaps a very major improvement could but even then, the Bitcoin community might just adopt the technology and apply it to Bitcoin without adopting the alternative currency.
Litecoin only had a very minor change compared to Bitcoin (the proof-of-work algorithm) and it's not a change that makes it strictly better, the change is really more akin to a trade off rather than a strict improvement. And that's why it never overtook Bitcoin.
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If you want a paper wallet I wouldn't generate it on a computer with bitaddress.org script or similar. Why not just create a new wallet with your hardware wallet and write the recovery words on a piece of paper? You can then reset your hardware wallet if you are confident you correctly wrote/memorized the recovery words and placed them in a safe place. If you generate a wallet with Bitaddress or such script, you run the risk that your computer is infected by private key stealing malware which will send over your key to a remote server as soon as it gets an Internet connection.
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I'm fairly sure it's possible for billionaires to make 0 fee transfers between banks. That being said, tere are much more interesting features of Bitcoin:
- Its fixed and immutable money supply.
- Its pseudonymity.
- Its censorship resistance. You don't need anyone's permission to participate.
- Its digital, you can theoretically store a wallet in your head.
- etc.
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I'd be surprised if you found the games you mentioned because they would quickly be filled with bots and you'd surely lose any challenge. There are however a number of BTC accepting poker sites.
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Coinbase provide visa card out of USA as well, if you are from below countries then you may use your crypto directly via coinbase visa card. Coinbase is an centralized exchange and they required KYC. Coinbase Card is available for customers in Austria, Belgium, Bulgaria, Croatia, Cyprus, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and the UK. We’re working on expanding the offer to additional markets. You may check also Bitpay visa card service if your country is supported (KYC requirement) Thanks, I wasn't aware of that. For Coinbase, is it mandatory to link a bank account or is it possible to use crypto only? |
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As a thought experiment, I was wondering what would be the best way to securely store some data on the blockchain. The data itself as an example could be some text, maybe a few kilobytes. Lets say I don't want anyone to know what that text is and since its on the blockchain, anyone can find and access it so encryption would likely be required. Is there any sort of best practice for this scenario? Lets say a whole system was built around the idea of storing small bits of text on the blockchain in a secure manner, would it be something you trust? It would be something not far off from a company having a database of encrypted sensitive info but everyone having access to that database. Ethical debates of using bitcoin as an arbitrary store of data aside, I am just curious how in this sort of environment you could guarantee the security and privacy of that data. To be clear I don't really care about the ethical hesitation against this, and I also am specifically only interested in what can be done on the bitcoin blockchain not others.
Can you elaborate a bit on your use case? I'm going to guess that the actual reason for wanting to write the data to Bitcoin's blockchain is not actual storage (there are plenty of distributed and centralized systems for storing data) but to have a sort of proof that the data is authentic/not tampered with? In that case you can simply hash the data and put that small hash in Bitcoin's blockchain using an OP_RETURN transaction. There are plenty of existing tools and libraries for doing that. A few KBs of data would be prohibitively expensive to store on Bitcoin (and pretty much any altcoin worth its salt). |
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Does such a prepaid/reloadable card issuer exist and what are their KYC requirements? Almost all solutions I found involved US citizenship and providing a US social security number.
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You can sort topics by their creation time. Then it will be easy to find topics created after your last visit in any board. Add ;sort=first_post;desc after the URL of any board. For example you can use the link below to sort the topics by their creation time in Meta. https://bitcointalk.org/index.php?board=24.0;sort=first_post;descThanks, that's what I meant (sorting topics by creation date). That said, is there a way to do it across all boards? |
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Is there a page like https://bitcointalk.org/index.php?action=unread but that lists newly created topics instead (e.g. lists topics by decreasing creation date order)? Otherwise, I guess that would be a feature request. It would give visibility to newer topics which are sometimes quickly buried by active topics that are older. |
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Ethereum is looking good. Very large developer community and ecosystem.
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