Hey dave i'm intersting also to build hardware wallet but the github link you sent doesn't have enough information i don't want to do that from scatrch, i just want to replicate a existant hardware wallet just to understand the engineering behind a hardware wallet and their secret and why not in future apply in some job for hardware wallet or wallet  The coldcard with a list of parts and a schematic is probably about the best you are going to be able to find out there. There are others but all of them the last time I checked gave about the same amount of info. The other side is that the secure element of all of them to date requires a NDA so the best they can give is plug in this component and give it this data and magic happens. https://tropicsquare.com/ is coming soon, but you still need to do the rest of the hardware around it. -Dave |
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Coldcard has their entire hardware list and schematics online: https://github.com/Coldcard/firmware/tree/master/hardwareYou also have lnbits: https://lnbits.github.io/hardware-wallet/installer/ that will allow you to use some off the shelf hardware to create a wallet. For the most part if you want to do it from scratch it's not a 1 person job. You would have to know programming to write the code, engineering to design the hardware, and then be able to assemble it which is an entirely different set of skills. Would be an interesting project, but well above what most people can do on their own. -Dave |
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Bitpay is temporarily pausing its MasterCard and is planning to relaunch its program by the end of the year with another banking partner[1]. For the current cardholders, you have until 15 of June before the card becomes inactive. [1] https://twitter.com/BitPay/status/1659231785832546316They already had their other partner before Metropolitan Commercial Bank that did Visa that was shutdown. This was the relaunch. https://bitcointalk.org/index.php?topic=5253104.0So this new one will be #3 Wonder what the reasoning is. However, with the Gemini CREDIT card you do get some nice perks. And with the Coinbase Visa Debit you also got cash back (well crypto back) with the BitPay you got nothing. So I can see this bing a point of contention between them. Because, lets face it. If you are going to pull a crypto card out of you wallet are you going to go with the 3% back or the 0% back..... -Dave |
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In the event of a fork of just one or two blocks where both chains have the same amount of work, then nodes will generally pick the chain which they saw first.
They will follow the one that their nodes validated 1st. Minor wording but if for whatever oddball reason 1 fork has blocks that take longer for the nodes to come out and finish the work that says yes this is a valid then the other will win. In theory a node should validate in seconds, but if something is funky in a block that for whatever reason takes longer to validate then another one can sneak in behind it. This is a very very very edge case scenario but it's worth a mention. If you are running a proper mining pool you have nodes distributed all over the wold behind some fairly sophisticated firewalls and security devices. So, there could be some situations where 2 blocks come in within fractions of second and even though one got there 1st it was still processed 2nd and therefor lost. I have said it a few times, this is also important to note about pools that DON'T use real security appliances they can see and process blocks that other pools have not even started to process because their front end security devices are still working on it. Once again we a taking fractions of seconds or a second or 2 at most but we have seen blocks come in back to back that quickly. -Dave |
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You can also look at mempool.space If you search by txid it will give you a general idea of where that TX is in the blockchain. Picking a random one: https://mempool.space/tx/809ba37e88fb52745fc3402268fd50592712dde5574a14fc76ad35e89825b735You can see that of of now it's about 5 blocks away, but since the fee is only about 18 sat / vb it's going to keep getting pushed back as more TX come in. Or there could be a bunch of new blocks coming in quickly and it does get mined soon. Or a flood of transactions could be made and it gets pushed back hours. -Dave |
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Although I have not used the F2F cash option I have used other cash options from https://localcoinswap.comYou do have to give them an email and phone # when you register there are enough ways out there of doing it privately that it really is not that big of a privacy issue. Don't know where you are in the US but when I used other services for F2F cash I usually met at a casino if possible. Because nobody pays any attention to someone handing someone else cash and it's easy to pick out a few bills and put them into a slot machine or similar to make sure they are real. And there is security. not know if that is an option for you. There are a lot of of cameras in casinos so you loose on that side, but these days even if you do it at your local cat cafe https://tuxedocatscoffeellc.us/ there are enough cameras on everything anyway to see who you are. -Dave |
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You can't seize coins without the owner's permission. Simple as that. Even in $5 wrench attacks permission must be granted by the owner. Given that you do self-custody obviously. The government / courts can 'force' you to provide passwords / unlock devices / and so on. How does this work? Like, what if I pretend I've forgotten my passphrase? I was reading about some wallet whose owner was refusing to give permission to the feds, and they simply couldn't get the money. However, if those funds ever move you are in a world of shit. If you don't think those addresses and you are not going to be watched for a really long time then you are kidding yourself. see here: https://www.justice.gov/opa/pr/man-sentenced-stealing-over-712-bitcoin-subject-forfeitureWhich is followed by: https://www.youtube.com/watch?v=Z2-1wcJYrWA&t=28s Not related to BTC but there have been many people over the years who have thought that they are no longer being watched and tried to move money that they claimed they did not have access to who wound up getting caught. It's a public ledger, the minute those coins move, you are going to have a nice visit from team Fed. -Dave |
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They have no reason not to pay the people posting. If they stopped that then advertising would fall and they might not get as many people to play there. With all the other places they seem to be having people post referrals and promoting them, there are always other players. Even with the horrible reputation here, we still get new posts about them not paying out because people don't pay attention. https://beaconcha.in/ <- click the play casino button and you see them. And in general that site is not a place where you would expect to see a place with such a bad reputation. -Dave |
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More than 60% of mining equipment entering Russia is imported using "gray" schemes, according to Intelion Data Systems. Because of this, according to various experts, the state receives less in the form of tax revenues from 5 to 10 billion rubles. in year. This seems to be true, there may be problems with the guarantee in official services in Russia, and ASICs will have to be taken to China. But if the guarantee ends, then the services repair any asics for money. Makes you wonder if some of the gear is actually being imported at all. You can't mine in China, but you can in Russia. Someone in China 'sells' gear to Russia, gets it close to the border and it just never leaves China but sits mining in an empty warehouse or factory in China. Probably not important since as of now there really does not seem to be much physical proof of the gear mining or even existing. No pool or service that is located in a country that has sanctions against Russia at the moment would want to deal with this so it would have to be at a pool that does not care. -Dave |
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As of now the plan is to see what promos places like bitrefill offer and get a GC and get some pizza for dinner.
If not then menufi has some places close by that accept BTC through online ordering.
This year seems to be a bit light on people posting / talking / tweeting about it.
But there will be pizza, more then likely going to be a LN payment since fees are still up there.
-Dave
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@Abiky. The approved custodian rule will kill the innovation of real ownership that it brings in web3. Will the NFTs that represent your character in a game also needed to be held with an approved custodian? Character skins in web3 are also NFTs hehe, they also need everyone to register them with the SEC?
The speed of the cryptospace's development has placed the SEC in a head shaking environment hehehe. Those who can evade compliance because uncle Gary is using old rules will certainly use every chance to evade hehehehe.
Of course people will evade. And there's nothing the SEC can do about it. Crypto/Blockchain tech is decentralized after all. This "approved custodian" rule will only make crypto more centralized. It will force people to use P2P exchanges or trade crypto in-person in the long run. That means less tax income for the US. Not only that, but tightening regulations will force centralized exchanges to move elsewhere. Bittrex left the country, and Coinbase is coming up next. And God knows if Binance will also do the same soon. US customers will be left with Kraken and some other small crypto exchanges in the timebeing. But if Gary Gensler maintains his aggressive stance against crypto, there will be no exchanges left in the country. I hope this would be over by 2025 after the new government is sworn in. That is if Republicans win the race. Otherwise, you can say bye-bye to crypto in the US for good. Maybe this is an opportunity for the EU to rise as the leading superpower for crypto/Blockchain tech development and innovation? Just my thoughts  The only exchanges left will be the ones that play by the rules. Quoting myself: If every time somebody wants to look at your finances, and you run, 99% of the time it's one of two things.
1) You are cooking the books
2) There are no books
The last small 1% is that even if things are 'legit' so many things done in a non GAAP way that it's never going to look legit....
If you are afraid as a business of having an independent person come in and make sure that you as a business are doing what you say you are doing and have what you say you have then you are probably not legit. Any business in the finance world has had to deal with that. When the rules get loosened is when you have problems because that's when they see what they can get away with. And...wait for it....you know what I am going to say now..... Don't put funds in centralized exchanges...Not Your Keys Not Your Coins. -Dave |
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The fee that they paid is 8.96 sat/vB
What wallet are YOU using to get the payments?
You need to be able to select those transactions using coin control and send them to another address that you control with enough of a fee that it's worth it to the miners.
At the moment fees have bounced back above 100 sat/vB you it's going to have to be a big number since you have to cover the fees for the new TX *and* all the fees for the older ones.
Might not be worth it for the number of TX and the amounts involved.
-Dave
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The government / courts can 'force' you to provide passwords / unlock devices / and so on.
No real $5 wrench attack needed. If it's a legal court order and you don't obey it, it's a crime.
So even if you are not guilty, and what they want to to unlock would prove you are not guilty, if you don't do it, you are now guilty of disobeying a legal order of the court.
Obviously, this is all dependent on where you are in the world and your local laws. But it seems almost everywhere, the courts (judges) really don't like people not listening to them.
-Dave
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With the dust attacks it's kind of, at least for me, an interesting loop. I have a few addresses that I put into 'cold' storage back in 2018. They now have a lot of 0.000005xx dustings in them.
Dozens of addresses with a lot of dust. So, even if BTC doubles they are worth $0.30 each. Is it worth the time and effort and TX fees and everything else to pull the addresses out of cold storage and generate new addresses and move the coins? For me no, they will just stay there. Obviously YMMV.
But, if I do need to move some of that old BTC do I move the dust too or just leave it there. At this point if I am moving the coins it's going to be in bulk to an exchange to sell since I am in NY it's probably all going to be KYCd 100% anyway and taxed accordingly anyway unless I go for a F2F thing. But if I am moving these coins something has gone to shit anyway so I probably will not be able to or even want to hide the funds. So does it matter?
Which does bring up the point, does it even matter for most people? Are there more like me or less like me?
-Dave
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Take a look here: https://blockspot.io/exchange/You can put in Poland in the country search and it gives a list of 7 exchanges all of which are offline so it may be one of those. Also, you can also take a look at: https://en.bitcoin.it/wiki/Category:Defunct_exchangesNot 100% inclusive but it might get you something if the 1st option does not work. If none of that works try searching around archive.org it's going to be slow and a lot of guesswork in search terms but it might get you something. Good luck. -Dave |
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It depends on how you plan to use it.
If you start it up and forget about it, Fulcrum would be better since it can deliver better performance after it's synced.
If you plan to start it up every now and then when you need it and don't mind if a wallet with many transactions is not lightning fast to receive, Electrs is better choice.
The other question is if I really need it - I have electrs running and I really do not feel I must change it to something else. But you know - numbers in performance comparison are tempting. Maybe one day if I have nothing better to do... If it ain't broke don't fix it..... Anyway, got fulcrum running and synced. No real issues there. Will say that outside of the BTC syncing issues that I mentioned earlier that it's a much simpler run then electrs. A few lines in a config file, run an exe, wait, done. And this I think is a good thing. People who want to do it themselves but don't have a good knowledge of OSs and other things can with very little work have their own private electrum server running on an old Windows box. Yes there are 100s of other things to consider and so on. But for a close to run and done pre-compiled solution it does work. -Dave |
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The basics of wallet categorization as custodial and non-custodial is the idea of who holds the private keys. And in a closed source wallet you simply don't know who holds the private keys, so you cannot call it non-custodial. You don't know who has ACCESS to the keys. It's trivial to check if you have them, all you have to do is take whatever device offline and then start the wallet. If you have access to the keys / seed it's non custodial. WHO ELSE HAS CUSTODY OF THE KEYS IS A DIFFERENT THING. Coinomi wallet / trust wallet / many others we can say they are non custodial since you can get the private keys and seed and do whatever you want with them. Are they safe? Are they secure? Can they be trusted, has 0 to do with that. I can write a 100% open source non custodial wallet that once funds are sent to it you can only send to me. That does not make it any less open source or non custodial. It, just makes it a bad wallet choice. -Dave |
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It's 100% clickbait headline.
No old wallets are not being hacked. If they were you would be hearing about it. Taking everything else away I would say a lot of them are not moving because of security reasons or financial ones but rather hardware ones. That old PC sitting in the closet that has a few hundred if not thousand BTC (could even be just a few dozen) do you trust it to still boot with no issues? Can that old version of the software even communicate with the network anymore? Has the drive gotten corrupted? Can you fit the entire blockchain on a drive you bought in 2012? And so on.
So you take the time and move the coins. And possibly sell a couple.
The other reason I see a lot of is people aging out so to speak, if you got into BTC in 2010 and were 40 you are now approaching your mid 50s.
If you have enough time to sell and retire.
-Dave
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You can't fix stupid.
But beyond that, take everything else away.
Say it's done 100% perfectly, secure, safe and everything else. You are now paying $120 a year to save your seed. Fine, great.
What happens in 3 or 8 or 15 years if they go out of business and properly purge all their data. It's just as useless as not having it in the 1st place.
Seed plate in a secure spot and done. Is it really that difficult?
Not your keys, not your coins. Give your keys to someone else....not your keys anymore.
-Dave
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Going with as others have said it's pointless info.
Without knowing how many different people control those addresses it's just a data point without real meaning.
Kind of like saying there are 1 million accounts in this bank with more then $25000
Are there 1 million different people or did some mega corporation decide to separate a few multi million dollar accounts into smaller separate ones for some reason.
But, it makes a good click-bait headline.
-Dave
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