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    Bitcoin Daily Discussion, August 21, 2020

    Bitcoin Daily Discussion, August 21, 2020


    Daily Discussion, August 21, 2020

    Posted: 21 Aug 2020 12:00 AM PDT

    Please utilize this sticky thread for all general Bitcoin discussions! If you see posts on the front page or /r/Bitcoin/new which are better suited for this daily discussion thread, please help out by directing the OP to this thread instead. Thank you!

    If you don't get an answer to your question, you can try phrasing it differently or commenting again tomorrow.

    Join us in the r/Bitcoin Chatroom!

    Please check the previous discussion thread for unanswered questions.

    submitted by /u/rBitcoinMod
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    How I scammed a scammer out of 0.001 BTC with RBF

    Posted: 20 Aug 2020 12:19 PM PDT

    A scammer named lawrence2276 tried pulling off a bitcoin trading scam on me. I pretended that the websites he sent were broken (using inspect element), until he finally told me to send directly to his address. I asked him if he could do a test tx where I send him 0.001 BTC and he sends it back. He agreed.

    I sent this TX:

    https://live.blockcypher.com/btc/tx/687fe72c6173f1ed2d9b4929ee4e4a1b85dd6d5e2f8773ed9ebab52a6e568295/

    and the guy sent me back 0.001 BTC without waiting for confirmations:

    https://blockchair.com/bitcoin/address/12CPhvSp88sv7QnwnzanzxV3bjm5m51TPx.

    He didn't notice that I had RBF on. From here, it was simple to double spend the funds back into my own wallet.

    https://live.blockcypher.com/btc/tx/d4dff793d00588b9fe33c8b95c7a056573d224b8028760519b4c3d83f03f9182/

    Here's the double spend.

    This is why you shouldn't accept zero confirmation transactions (especially ones with RBF enabled). If you want to know whether RBF is enabled, enter your txid on blockchair.com

    submitted by /u/cometothecaml
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    IRS Violated 'Taxpayer Bill of Rights' With 2019 Crypto Letters: Watchdog

    Posted: 20 Aug 2020 07:39 PM PDT

    Bitcoin wizard spotted near my garden!

    Posted: 20 Aug 2020 03:15 PM PDT

    Bitcoin held by crypto exchanges drops to 20-month low

    Posted: 20 Aug 2020 08:02 AM PDT

    What is the best app to make instant purchases and payment of BTC?

    Posted: 20 Aug 2020 02:24 PM PDT

    Hey guys, I'm a newbie in this trending crypto technology ( Bitcoin to be specific). Which platform can I use to instantly buy my Bitcoin at a relatively low price? I've tried coinbase but its fees are outrageously high.

    Moreover, a platform that would allow me to make quick payments with Bitcoin for any type of goods and services even if the merchant has a traditional POS terminal (fiat).

    I've heard of Lightning Network (LN), which I find an interesting concept of solving the unending debate of buying a cup of coffee for BTC and has accelerated transactions too. I'm lured into trying this tech but my concerns are, should I put all my head into it when we all know most merchants haven't embraced it yet? Then, with all these sophisticated techniques behind it will I send Bitcoin via LN to my peer without them having to understand those nitty-gritty details?

    Thank you for your help.

    submitted by /u/islyfe
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    Lightning Network: the Wumbo update is here - The Cryptonomist

    Posted: 21 Aug 2020 12:29 AM PDT

    Announcing lnd 0.11-beta: Let's Get Ready to Wumbo!

    Posted: 20 Aug 2020 10:11 AM PDT

    why always 0.00000547 BTC?

    Posted: 21 Aug 2020 01:30 AM PDT

    someone sent 0.00000547 BTC each to lot of addresses,
    some of the receiving address have big amount of coins,
    anyone can explain why this keep happening, a new kind of scam?

    like this address keep receiving during recent days
    https://blockchair.com/bitcoin/address/3FuqMT3VeyRhB917aiJUeWSn2jRt4M3hw8

    submitted by /u/adelemak
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    My Bitcoin Story -- This is why you HODL

    Posted: 20 Aug 2020 01:25 PM PDT

    During the Christmas of 2012, we teamed up with Bitcoin Black Friday to be one of the first apparel companies to accept Bitcoin for purchases. We had no idea if anyone would actually buy anything with their bitcoin, but we were new and small and we were looking for ANY revenue streams. There were a couple of great processors that we knew we could convert back into dollars quickly and not lose too much money if the price of bitcoin went down (Laughing at this thought right now).

    The price at that time for a bitcoin was around $13 each. We had more than 2000 coins come through the website that Christmas. We talked about holding them, but then bills and running a business got in the way. Today those 2000 coins would be worth $22 Million dollars. If only we had held on. Anyways, i do own Bitcoin today, but only a fraction of 1 bitcoin. The irony of that is so funny. Now I buy and hold, but holy cow what if! :)

    submitted by /u/rememberdan13
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    A Friend of mine recently bought his First Bitcoin and asked for some tips on how to keep it safe... Thought I'd share them here as well!

    Posted: 20 Aug 2020 08:30 AM PDT

    Here are a few things you can do to keep your Bitcoin safe:

    #1 Use Hardware Wallet: Hardware Wallets are considered one the safest solution to store your bitcoin. Your private Keys stay offline so chances of a hacker stealing your bitcoin are relatively low.

    Wallets like Trezor and Ledger are two of the most popular wallets currently in the market.

    #2 Never Store your Bitcoin on Exchanges: Most of the major Bitcoin hacks have always taken place at an exchange. Such platforms are always the high target for cybercriminals thus storing your bitcoin/crypto there is not a good idea.

    Always withdraw your assets once the trade is made and store them in your personal wallet(s).

    #3 Use separate wallets for daily use and savings: It is always wise to keep your daily use bitcoin and savings in separate wallets.

    If you are using bitcoin for daily transaction your wallet will spend a much higher time online, which increases its risk of getting hacked. Only keep a small amount in such wallets.

    Keeping your extra bitcoin separate protects it at such events.

    #4 Keep Backup: If anything to your device or wallet, the only to recover your funds is through a backup so make sure you have one.

    #5 Store your Private Keys/Wallet Seed Offline and Never Share them: Make sure that your private keys are securely stored offline. This is the most secure way to protect your wallet from hackers.

    The same goes for your Wallet Seed. Never store your wallet seed online, in case of a cyber-attack you risk exposing your seed to the hacker if they are stored online.

    #6 Never click links or send your bitcoin to unsolicited schemes: If the recent Twitter hack has taught us anything its that we should never send bitcoin to 'quick-rich' or similar sensational schemes no matter the source.

    Always verify the source and get more information before sending your bitcoin.

    Source: Bitcoin & Security: How to keep your BTC Secure

    submitted by /u/primalfabric
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    Pro-Bitcoin Senate Candidate Wins Primary Race in Wyoming

    Posted: 20 Aug 2020 04:10 AM PDT

    Qubes OS instead of hardware wallets

    Posted: 21 Aug 2020 12:53 AM PDT

    I know there are a few tails users, but never have I seen anybody use https://www.qubes-os.org/ instead of a hardware wallet. Is this because everybody uses phones? Qubes has improved a ton and is easy to install and use. No need for hardware wallets in my opinion. You run your watch-only wallet in an online VM and your signing wallet in an offline VM (meaning no internet connection). Btw., this is a good intro: https://www.youtube.com/watch?v=hWDvS_Mp6gc

    The only Bitcoiner I know who runs QubesOS is Peter Todd. Anybody else?

    submitted by /u/hans7070
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    Turkish Bitcoin exchange BtcTurk, has become the official main sponsor of Turkish National Football Team!

    Posted: 20 Aug 2020 05:31 AM PDT

    Fast & Cheap Bitcoin Buy+Withdraw with ACH?

    Posted: 20 Aug 2020 10:59 PM PDT

    Hey guys,

    I'm trying to send money to a friend using Bitcoin. It's a decent amount ($4,000 USD). It's not a scam or anything, he's a good friend of mine. We want to use BTC because he's in a different country right now.

    I normally use CashApp, but this is too much money for CashApp. With Coinbase, it seems like my money will get stuck for up to 5 days if I send them an ACH. Also, I don't want to get locked into a BTC rate, because I owe the money to my friend in USD. If Bitcoin price drops in between now and when I can actually withdraw the coins, then it's a frustrating expense.

    Are there any exchanges that allow me to fund with USD via ACH, and will allow me to withdraw $4,000 USD in BTC? Let me know. Cheers!

    submitted by /u/chuck_portis
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    New release of JoinMarket 0.7.0, includes BIP78 payjoin support, pre-built GUI executable for Windows, backend library changes and other minor fixes

    Posted: 20 Aug 2020 01:06 PM PDT

    How can I set up Lightning Node on my PC?

    Posted: 21 Aug 2020 01:44 AM PDT

    I have few questions about the Lightning Node itself :

    1st - I am new here, Do I get paid when I set up a Lightning Node? If yes then how?

    2nd - How can I set up Lightning Node on my Windows 10 PC? And yes I know there are people in the community that hate Windows 10 but I can't afford to dual boot Linux because my all of work is on Windows 10.

    Thanks in advance for any help.

    submitted by /u/siddude11
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    Warning about two discovered vulnerabilities in Wasabi Wallet

    Posted: 20 Aug 2020 09:51 PM PDT

    I have a question about Bitcoin RBF transactions

    Posted: 21 Aug 2020 01:40 AM PDT

    Beside changing the fee, can I change the recipient address too? And how to do this if it is possible?

    I watched this tutorial https://www.youtube.com/watch?v=im2rH2U9MEg , but there was explained just how to change the fee.

    submitted by /u/Roy1984
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    Tom Emmer allows campaign donatation with Crypto

    Posted: 21 Aug 2020 03:43 AM PDT

    Anyone receive IRS letter recently?

    Posted: 20 Aug 2020 07:21 PM PDT

    Sorry if this is a double post, I posted it earlier and don't see it showing up. I got a letter in the mail today, 6173, says from years 2015-2019. I opened a coinbase account at the end of 2018 and did like $600 in volume I think from Dec 18 and into 2019. I haven't filed my 2018 or 19 returns yet but plan to. Is coinbase sending all accounts to the IRS that they are automatically running against who hasn't filed yet for that year or what? I'm aware of the letters that were sent out last year, didn't get one of those, but now I get one. Anyone else received recently?

    submitted by /u/Ghawk3798
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    Your advice on MultiSig.

    Posted: 21 Aug 2020 03:16 AM PDT

    Hello,

    I'm a security freak and I always like to implement any security measure I find. Would you advise multisig using both Ledger and Trezor? Please share the pros and cons.

    I assume it can do it flawlessly with Electrum, but I'd like to hear some opinions.

    Just one question, if my hardware wallets are assigned to a passphrase each, combining them both would generate a multiwallet based on the seeds only? or including the passphrase as well? I've seen from tutorials that electrum asks for a hardware wallets to be connected then it gives out the public key, how can I let electrum know I'm using a passphrase?

    submitted by /u/Leader92
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    Any ideas how to invest online from phone, like stock exchange!

    Posted: 21 Aug 2020 12:48 AM PDT

    In Germany

    submitted by /u/hobahobamon
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    Using a bitcoin atm at 16?

    Posted: 20 Aug 2020 10:01 PM PDT

    right now I'm 16 and wanting to invest some of my money into bitcoin and have read that the only way to get bitcoin as a minor is using one of these atms. Just want to make sure before I make a 30min drive to the closest one.

    submitted by /u/bando24
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    Single Private Keys/Wallet Seed location vs. multiple

    Posted: 20 Aug 2020 11:12 PM PDT

    Bought my Ledger, bought my CyptoSteel plate and then I'm hit with a little existential dread on my strategy....

    Single back up location (private safe) reduces probability of your keys getting exposed but the con is there's no back up to a critical failure at that particular location.

    Multiple locations reduces the probability of critical failure but doubles the probability of losing your keys and/or falling into the hands of bad actors.

    The only logical way I can reconcile this is

    1. Leaving a considerable amount in a cold wallet that is in custodial estate attorney's control and have a personal amount in a separate hardware wallet for day to day personal access.
    2. Save one set of keys via cryptosteel in a local safe and custodial estate control a copy and keep them all in one wallet.

    Any write ups on the pros and cons to this single vs multiple location storage question?

    submitted by /u/JonBoy82
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