The withdrawal fee at exchanges is not so much related to the network fee.
While a normal (1 input 2 outputs) transaction costs under 300 satoshi now, while during the week don't really go higher than 2500 satoshi, Binance, one the cheapest options, charges you 40000 (!) satoshi.
And they can easily combine multiple withdrawals to lower the fee/person (also that's why you'll probably see bigger total fees).

I don't have too big expectations the fees will get as low as you'd expect if these platforms go for LN. It's their profit we're talking about here.
So LN can help on speed, maybe a bit in the transactions fees too, but I would not expect wonders.

Imho Bitcoin is getthing this slow to the masses is political.
The governments and central banks do protect their fiat. Most commercial banks see bitcoin as a competitor. All of them are bashing Bitcoin as much as possible, spreading false news in order to keep average Joe wary about Bitcoin.
Bitcoin price cannot be easily explained by the economics, even more, nobody guarantees that the price cannot fall big. Bitcoin is still seen as a risky investment.
The fact Bitcoin daily price fluctuations of even 8% are seen as "not unusual", the merchants (who get the raw materials in fiat, pay salaries and taxes in fiat, ...) cannot easily show the prices in bitcoin makes it be avoided by many, hence the use as a currency is limited.

But what Bitcoin actually needs? Probably strong advertising. Probably somebody has to go to the businesses to strike a deal. Probably somebody has to pay for banners in the metro and at the tv. But since Bitcoin is not a business per se and there aren't that many businesses working with Bitcoin, we are pretty early for that. For now I see easier advertising to FTX, Binance and many others, but not that much for Bitcoin. But sooner or later they'll realize they have to do a bit more.

When did Binance say so? It's important, because lately they've turned into an exchange obeying regulation and they have already frozen this year the funds of Nigerians (most probably) because of official requests (just I didn't follow the story closely, hence I don't know if those funds got unfrozen meanwhile).

And even more: one should not really trust in what these businesses said. The policies can change over time. The existence of the business on certain markets is usually more important than a few unhappy customers for which the public can be convinced "it was their fault".

1. You can upload the images to imgur.com and post here the links. Then somebody will quote your post so they're visible. You cannot make them visible until you rank up.
2. From what I know, one method to find the address is to go to https://www.walletexplorer.com/ and post there the part of the address you have. They'll try to get you the full address.

For example for 1BTCfifq taken from here: https://images.greysheet.com/l/blogs/20211201/510a07e0-83a8-49a1-8ad8-410b39299274.jpg
I've got 1BTCfifqJmZFJxaEoiRGSz8nCRM6SMNcmQ showing 0.1 BTC on it.

[FREE RAFFLE] MX12 BITCOIN ART - GOVERNMENT, THE NEGATION OF LIBERTY!
https://bitcointalk.org/index.php?topic=5394900.0

Organizator: mx12.levins

Se poate castiga un tablou inramat de 75,1 x 105,1 cm


In mod surprinzator nu am gasit nicio restrictie de participare.
Modalitate de inscriere: se alege un numar (care nu a fost deja rezervat) de la 0 la 99. Castigatorul va fi ales de cifre din hash-ul blocului 733333 (sau unul din urmatoarele, pana o sa fie un castigator)
Transport, taxe: nu exista informatii.

Update: Concurs incheiat.

Because it's only you who will know what those file are for (unless you store them together with wallet, unless you name them seed1.jpg...seed12.jpg), unlike storing a seed or a picture of the seed.

I mean, if I put into Dropbox a folder with 5-10 jpeg files, it's only me who will know that they're more than nice memories. (of course, as o_e_l_e_o pointed it out very good, online services tend to mess with image files, but let's ignore that for now). Unlike a backup of the seed containing the actual seed, a file is a file, really. And if you want to tell otherwise, I can tell you that I have over 3000 pictures on cloud, so if one wants to guess a seed based on (some of) those.. it won't be easy.

I find it less secure because the owner may forget the logic of his "hidden HD seed" than because one would start hashing and mixing those files to get the seed off them.

It's 100% clear that the file has to be kept securely. The thing is that it's only you who will know which is the file (or files) needed for the seed. It can be stored on USB sticks, or even better, on cloud, without anybody knowing what's that for. I find it a not-so-bad way to store your seed.


You are indeed very right on this. The user will have to keep the seed-source super safe. Even more, he will have to also keep super-safe the code that generates the seed from the source files and.. yeah, they should not be stored together.

---

It is an ingenious way imho. And some may like it. But it's also super risky, especially for really long term (like any non-standard way to keep the seed, after all). You guys are right.

Indeed. But is it not-so-safe because the list of English words, or is it because they're objects in your house? I mean that if one uses this "trick" with a list of (image) files, somebody else will also have to know that the seed comes from a list of files. I'd guess that the hash of a number of files can give stronger seed than from some words, but I am not good at this.

Well, one can easily have a few super-memorable photos he wants to turn into wallet. He won't have to remember how the photo looks like.
Like "the main photo from my wedding", "the first photo with my boy" and so on. But.. your point is valid because nowadays one may have 20 photos with the first day of his kid, and then the things indeed get confusing.

---
Also, in case nobody noticed:


Imho the current implementation can be considered flawed, since one may want to print the photos that make the seed, for example, for remembering easier.
(Of course, it can be seen as a feature too, since one may want to do this from certain historic files - the images of his first few floppy disks, or the first version of whatever application and so on)

Back to the images: if the implementation gets corrected/improved as the dev wants... I am not so sure if a 4k photo and its scaled down to 2MP version would return the same seed.

---
Conclusion: it can become an interesting project, but it may be better to not be linked to the idea of photos, it may be better with (any) actual files. It avoids confusion and other possible problems.

Well, according to this bech32 playground page the initial data cannot be too long:


Hence on version 0 I couldn't make longer "addresses". than 62 chars.
But on other versions I've got (from random data I don't understand) rather easily¹ 73 chars long address². It has the source available though in case it helps anybody...


¹ From less than 20 attempts.
² bc1s3ztqrmj5aff3xws88atj8getytd03nf4g90g3vllwv3qjlwhxer9dzmzp4lmdvg2vypk8

A properly made wallet take security serious. This means that having seed based on biometric is not an option. (Fingerprint can be copied from any surface he touched; wallet access can be lost if one gets his finger cut, burned or even wet! That's not security.)
I don't see any good reason to make the wallet less safe for everybody just because a few people don't think far enough to secure properly their wallet seed.

So I agree with the rest. Bad idea. Sorry.

This may call for a separate type of search.
Ninjastic.space now searches for posts and it obviously returns posts. It's good when you look for a certain information, especially if it's part of long topics.

So imho what you are asking for is another search type (either another entry, either another parameter) that returns only topics.

This is imho the spot-on question.



@mluired you may have misunderstood something. Bitcoin is not the usual client-server application. Creating a private key doesn't need a server. Signing the private key doesn't need a server.
Getting a private key from a public key is not possible under normal circumstances. (It can be possible only if crucial mistakes are done.)

I think that you have to learn first. Bitcoin is a risky investment, especially for those who don't have the patience keep the coins for a couple of years, especially for those who invested money they "cannot afford to lose".
Altcoins are even riskier, many of them are plain scam, some of them may be profitable for short term and may do worse than Bitcoin on long term... it's even more to learn. Much more.

So if you have some money you afford to lose, you can start with DCA and small amounts, while you're also reading/learning more (just keep a vigilant eye on the exchange fees and withdrawal fees so you don't lose much there).

Ah, and also something vey important before you put money in crypto: learn about how to keep your wallet safe (and consider buying a hardware wallet). You don't want hackers steal your money, right?


PS. All this is not a financial advice. Please decide for yourself what you do with your money.

Bitcoin was mentioned in NCIS series in 2018. That's already 4 years ago. And it's not the only example.
While seeing it mentioned, in a way or another, can make me smile (although in most cases it's the hidden-money-ofr-doing-bad stereotype), it's certainly not something that important. Not anymore.

Also this kind of topic seems to keep coming now and then, see for example Bitcoin in Movies

The cpp file posted is not the source code. So you'd run a random executable from the internet on your computer.

There's a chance that exe will install to you all the malware in the world.
There's a chance that exe will, if you find the key, send it to the one creating the program without ever telling you that you've hit gold.

I don't know why would anybody take chances with it, really.

1. Multisig is not about getting a cut. Multisig is for wallet/funds security. In the same way there are multiple keys needed to allow launching a nuke, a multisig wallet allows spending funds only if multiple keys sign the transaction. So it's not related to your use case.

2. When a Bitcoin transaction is made/sent, usually the sender creates it and the receiver can check if he got the funds.
From what I know there is no such feature to create an invoice sending various amounts of funds to various addresses and it would make no sense either, since the buyer/sender could easily bypass the invoice, send the funds only to seller's address and the seller will be happy to release the goods/services.
So if you want to do something like this on your platform you'll have to implement it yourself and you can (and should) also act like an escrow. The buyer will send the full amount of funds to you and after the buyer has received the goods you send (as a new transaction) the payment to the seller, also keeping your cut for yourself.

Well, I've made the mix that keeps safe my keys and my privacy too^*: I have Bitcoin Core, on top of it I have an Electrum server, hence I use Electrum with a hardware wallet. Might sound a bit complicated, but it's fun. And then the problem is solved by the backup seed.

For your actual problem I see another solution: always save on paper the address and the private key for the one address (or few addresses) containing the bulk of the funds. Those will stay safely in geographically separated locations. Best for anti-hack security would be those even come from a completely different wallet.dat (which you'll destroy/wipe).
And for the rest, for the money moving often, you can use electronic means of storage (USB stick, SD card, ..) preferably at least 2 copies.


^* Actually, tbh, for some reasons, including laziness, I am not yet 100% there, but soon^TM...

Since debit/credit cards bear the risk of being stolen or payments get reversed, also since the individuals don't really have POS machines at home, your best bet would be the few platforms that indeed work with cards.
I know Binance.com is such a platform, I know that BestChange.com has listed some such platforms. Probably there are others too.

Exactly. I would not be surprised if it was more an attempt to pump the price of Twitter shares in order to sell afterwards, for example.
We simply don't know what his plans are and expecting that they're indeed related to crypto may be a bit much.