Since you're more technical user I'd suggest Nunchuk. [https://nunchuk.io/](https://nunchuk.io/) It has the best multi signature support that I've seen. Works with various NFC enabled devices. Allows setting of fees by transaction. easy to see all the wallets you've created. Open source on github: [https://github.com/nunchuk-io/resources](https://github.com/nunchuk-io/resources)
It depends on the hardware wallets because there are several different designs. But yes you can be air-gapped at all times. Options are: 1) Plug in to USB (trezor, ledger). Not technically air-gapped, but the seed never leaves the device and the cryptography is done on the device. 2) Using microSD cards to transfer data between host and signing device (COLDCARD). 3) Using QR codes the transfer data between host and signing device (SeedSigner, Passport, Jade) 4) NFC. I think Jack Dorsey's company is working on this
You can airgap your mobile device and generate the seed . There are even mobile wallets that allow you to use an old phone offline to generate your seed , sign Txs before you broadcast via BT or NFC to your regular everyday use online mobile device.
Ethereum makes for poor money and less decentralization by throwing more info in the first layer than just the "money" portion. Ethereum wasa security due to premined tokens, and it's 200% a security now that it's moved to PoS. It's not money. And yes, there are several cold wallets being built for ease of use... NFC, fingerprint scanners, etc.
No but you are talking about mass adoption of LN. In a perfect world it would work exactly like NFC bedit/credit payments. I don't the the US has caught upto the rest of the world in this way but it really wouldnt be hard to convince europe to switch is the UX was implemented correctly
I haven't used my wallet in over a year. I have all my loyalty cards, ID and NFC payments on my phone My case has a small card sleeve for physical cards just in case I need to use one I don't use a ledger but have hot wallets that are non custodial. You don't need to carry a usb device around but could keep a small portion on your hot wallet for payments and use your phone and keep the rest on your cold storage Besides, if you are out and about you can't exactly make a payment with a usb ledger without a device to plug it knot For some people, they don't want digital payments and need their physical wallet. That is totally OK too
No one should ever be keeping their funds on an exchange, period. That said, of all the exchanges out there, there are a handful that I continue to trust will remain around for as long as people are willing to even be investing in/purchasing/using crypto. These are the exchanges that I personally use and would recommend to others without hesitancy. Note, this is a US-centric list. Those include: * **Coinbase** (love them or hate them, Coinbase is one of the oldest continuously operating exchanges around and definitely right up there as the most well-known \[aside from Binance\], they have been one of the companies at the forefront pushing through new technologies for the industry and it's what I recommend for newbies. It's easy to use and they are rock-solid for 99.9% of people - the ones who I typically see making complaints tend to either be about something temporary that has been resolved or it's people who are doing something sketchy that has gotten their account flagged, of course there are extreme outliers but they are a fantastic exchange for most people, aside from their somewhat high fees). * **Gemini** (similar to Coinbase in terms of their legitimacy/institutional adoption as far as custodial holdings/investments are concerned, strict KYC standards similar to Coinbase, based in New York state which has the most insane requirements for any kind of financial business in the country especially for crypto-related stuff, also they just recently announced their new credit card offering which implies even further regulatory compliance) * **Binance** (while there's a big difference between Binance and Binance US, both are fine. The US one has been especially transparent and gone under a concerted push to be super compliant with all kinds of regulatory crap, going as far as to hire their CEO because he was formerly working for the SEC on crypto-related stuff. The US version has also massively expanded the number of tokens they have available and their support has improved dramatically when I have had to use it recently.) * **Kraken** (rounding out the list here with Kraken, who is certainly not at the end of the list because they are the worst, it's not an ordered list. Kraken is actually incredibly underrated in my personal opinion, their interface seems to be what drives some people to dislike them, though personally I think that once you figure out how you want to customize it, it's pretty great. Their support has been second-to-none for me, I was able to get a hold of someone and get support within 30 seconds from a real human being at some insane hour of the morning on a weekday, and had my issue resolved immediately. Can't say I've ever had that happen before. Also, they have by far the most customizable options for you as a user than any other exchange and it's very clear that they have an immense dedication towards security...they are the only exchange, for example, that allows you to submit a public PGP key that they will use to encrypt any outgoing communications to you with, for additional security and verification purposes. That's just one of many options. They have the 3rd most options of different assets available, out of the 4 exchanges listed here \[Gemini has the least\], but they do have good liquidity on all of their pairs and their fees are not bad.) Hopefully this list is helpful to some of you. **Remember,** it's repeated *ad nauseum* for a reason **"not your keys, not in your own wallet, NOT YOUR CRYPTO" - learn to live by this rule! Get yourself a self-custodied setup and hardware wallet ASAP!** Ledger Nano is a good one to start off with. Even better still, ***get a hardware security key*** (Yubikey FTW) to use ***in addition to using a password manager*** (keepass and bitwarden are the two best ones), which has second factor authentication/TOTP generation built in. ***Stop using your phone for everything, people lose their phones.*** ***!! Especially stop using your phone for any kind of SMS-based 2FA codes. !!*** You can use a Yubikey via NFC or plugged in via the port on your phone to securely generate your 2FA for signing in if you are insistent upon using your phone, and it works on your PC too. Also look into something for keeping your private key/mnemonic recovery phrase stored safely, such as the seedplate (by these guys - [https://coinkite.com/](https://coinkite.com/) ) or similar products out there, and keep that shit secured! I would also finally recommend taking the time to do a personal security audit of your entire setup as it currently stands. There are people out there (such as myself) whose job is providing such audit services to save people from losing their funds, falling victim to ransomware and various other attack vectors so as to mitigate risk as much as possible. Any good provider of this kind of service will be frank and honest with you and give you a detailed breakdown of where you need to make changes to your OPSec and won't be trying to sell you on some unnecessary and expensive services or subscription bullshit. Frankly, you can do this kind of thing on your own, the people who hire me are mostly too lazy or lack the knowledge to do it themselves, as few realize just how many ways they are exposing themselves to serious losses (simply by being only slightly careless, or worse, by not taking advantage of the abundance of free/cheap tools and services available to keep you safe.)
I wish all LN wallets can do NFC claim, so scanning QR code looks more universal (less possible points of failure) 1. he/she install *Wallet of Satoshi* 2. I ask to press Receive and that's all (because I scan zero amount LN invoice and do the rest) Then I ask him/her to scan QR code with *https://www.bitrefill.com/*
That. Sounds. Stupid. How can you not use 2fa? There are apps for it if you don't have a phone number. Google Authenticator, Microsoft Authenticator, Authy are the big 3. Or get a physical 2fa key from Yubikey. You either NFC tap it, or get a USB C model and plug it in.
Can you confirm it? I remember turning of my "regular" authenticator 2fa, added my Yubikey - but then something wasn't working as intended and I had to switch back again. I don't exactly remember what, but I think it might have been iOS / NFC support that was missing.
Don't know of anything I'd call comprehensive, but I found this to be one of the most helpful guides I found: https://www.suresats.com/post/best-bitcoin-hardware-wallets I have a Coldcard and am happy with it, although I would say it is more geared for a power user. There is no companion software wallet, you have to connect the Coldcard to one yourself, like Electrum or Sparrow (desktop) or Bluewallet (mobile). I think the Passport by Foundation Devices looks really good too but I don't have hands-on experience. I like those two because they heavily prioritize security, are bitcoin-only, and are air-gapped (no wired connection to a computer required, all transaction and signature info are passed by SD card, QR code, or NFC). But they are on the pricier side.
Im using two YubiKey 5 NFC (you should always have two, so one is backup). However the only exchange that I know that fully supports them on all browsers and devices (even iPhone) is Kraken, and I dont know exactly what protocol they are using. All other exchanges claim its not possible. Which is also a little funny.
It is pretty fast considering the ancient POS hardware they are using, which I doubt even supports Apple Pay, so this comparison wouldn't be fair. Once Bitcoin stop being an afterthought for merchants, the UX is going to be much better than traditional payments. You can see this in Jack Mallers demonstration for his NCR partnership, where the Lightning QR is beautifully displayed on a screen, just add NFC and it will really make it magical.
I use NFC tags, have them stuck in multiple places. For backup, I used a steel door hinge and engraved my passphrases into it and shut it screwed it to a tree in my family's estate. I created a bit of a treasure map for accessing my $187 worth of crypto in the event of my untimely death. Won't get rich likely but will have fun looking for it
The Coldcard has 3 ways to get a transaction signed. It can act as a virtual disk and operate much like a ledger, being connected directly via USB. Mk4 has NFC and can work that way. But most ColdCard users use the built-in micro sd slot to sneaker net the PSBT files between device and coldcard.
oh man. I bet your loving the Geno Era & seeing Russ struggle haha. I do have faith tho that the lions can potentially be the NFC North favorites in 2-3 years. I also think they might be cursed by the devil, time will tell. Can you make a decent side cash off betting games? not parlays or anything but just a W or L bet?
PLAIR (on Vechain) I have worked for the community I was admin once and have made a NFT with an NFC tag combined to it. Patrick Tang (CEO) really wanted to have that thing. I’m glad I never gave it to him. That guy messed up big time. People are still mad and want to sue him.
LN transactions are not public. There is no way to tell that. But the NFC standard is quite new so I will say it is happening this year. You can read more about NFC cards here [https://www.whitewolftech.com/articles/payment-card/](https://www.whitewolftech.com/articles/payment-card/)
I assume that my LN wallet must be online. The card just signs the money request and then the cash register informs my online wallet that it should send a transaction. Am I right? I am just guessing. Where can I read about it? If I am right how can I know that the cash register showed my NFC card the same amount as it was displayed on the screen? Ok I will see it on my mobile device but then it will be too late.
Don't exactly understand how my little comment incited these ramblings of yours but half of the things you're talking about are irrelevant. Whatever your opinion, it happens. I never debated the data or the likelihood of many people having two wallets, just made a point that is verifiably correct besides it maybe being easier than RFID/NFC which is debateable. (Imo) Besides, Bitcoin isn't even big enough to incite a mass of violent crime like that.
It’s easy as flipping a switch. Booking digital tickets for an event is very easy. Ticket master is only a marketplace for tickets to events. It takes a lot of work to build a website to do that don’t get me wrong they had to build a website make encrypted payments and keep them secure. This is from the ticket master website. they only describe being a marketplace and offering a secure digital ticket. Both those roles could be filled by crypto currency. They take a 30% cut for something that could cost A few cents regardless of the price of the ticket. “TSafeTix feature encrypted, changing barcodes and “tap and go” NFC technology, which prevents tickets from being screenshotted or photocopied, virtually eliminating fraud and counterfeiting.” https://www.ticketmaster.com/ticketing101
One thing I still don't understand about this lightning NFC cards is this: \- Can you use this NFC card in any place that accepts payments via the standard visa/mastercard gateway? Or the shop has to use a specific gateway to accept btc-lightning payments?
tldr; NVK of Coinkite joins me to talk about how Tapsigner, a Bitcoin NFC Hardware card may be the next big iteration in UX for the masses given it’s price and ease of use. We chat about low cost devices and use Bitcoin and NFC support w/Nunchuk SatsCard – the new OPENDIME BlockClock Micro. *This summary is auto generated by a bot and not meant to replace reading the original article. As always, DYOR.*
Stop praying for institutions to adopt bitcoin. Bitcoin will be adopted by merchants first. Checkout the Bolt card, you can basically tap a card with an NFC chip and pay instantly via the lightning network. When the lightning transactions outnumber the fiat transactions it's game over. The tech is just now arriving.
First, they could have brought over a tablet and paid the invoice directly. Its just that the waitress would generate the invoice instead of the customer. Second Should we go that direction? Because we can. Phones these days have NFC built in. \>Open Bitcoin wallet \>Click send \>Pay with NFC option \>Tap smart phone We just have to decide that this method is more desirable than QR codes.
If you don't protect your wallet app with a password and you don't make a long winded video like this, then you could pay a lightning invoice in a few seconds. If the point of sale system has NFC capability, then [you can tap and pay in a second using a contactless Lightning NFC card.](https://www.youtube.com/shorts/TenNTNddHkw) https://www.reddit.com/r/Bitcoin/comments/wy9918/paying_in_btc_via_lightning_is_faster_than_visa
Yeah, this is a very important point to make. Humans each have a tolerance for security versus convenience. And the fact that most of us choose the same password for everything tells you most of what you need to know about that. I suppose it's important to note that he is scanning a static code. If he was scanning a dynamic code generated by the servers phone he would cut out about 70% of that time out, e.g: typing in the peso amount, generating the invoice himself. It is a pipe dream at this point but if 10 years in the future we are using NFC technology to transfer sats, we may look at videos like this as vital stepping stones towards a faster, more secure technology. Much in the same way that using chip and pin technology was a faster, more secure technology at the time, but much slower than current tech.
I've been playing around with the [VoltPay](https://voltpay.app/) app. It's a user-friendly lightning POS which allows you to add a range of products (with photos!) When it comes to charging the user, you simply tap the products they want (you can also add "Misc." products), add an optional tip, and it's time to pay! My favourite feature - It's compatible with [Bolt Card](https://www.coincorner.com/theboltcard)/ NFC contactless payments Free to download - Recommend playing around with even if you're not a merchant!
It’s true though; there is 0 global pressure for any asset to go up in value at the moment. Want to see ETH spike? 1) Putin full withdraw from Ukraine 2) powell decides to take his boot off the economies neck (>0.75% rate hike) 3) Biden is replaced by a NFC
You can validate transactions via satellite. You can make payments through anything, Bluetooth and NFC are options, even with a piece of paper and pencil if you know the math. The payment receiver does need to be able to broadcast the transactions so they reach a miner, but as a user, you can be good with 0 internet connectivity.
Exactly! This is very similar to when the car was first invented. People’s frame of reference was that a car was a horseless carriage. Eventually people will just forget about these debit cards altogether. However, I will say that it would be ideal for merchants to accept lightning payments through NFC as well since tapping and paying is more convenient than the QR code. Banks normally use terminals which accept swipe, insert, or tap. With lightning, it would be tap and QR code.
Ya agreed. It’s got to be easy to use. China is really good about using mobile devices with bar codes. WeChat provides a simple way to send money, buy stuff at the store, eat out, send a business a payment online etc. obviously it’s fiat but it’s simple enough for anyone to use and they don’t need physical bank cards or cash. But people also need a reason to use it. If I can just pay with my NFC phone, bank card and it’s authorized in seconds at a store why would the average person want to use it? It has to be able to do everything fiat can but better and better enough that it’s dumb to not use it.
No thanks. I like some possible use cases for NFTs. But this has always been the most shilled about(astroturfed by LLCs?), and always my most hated. Id rather keep all the profit from doing the work to sell my collectibles P2P, by avoiding the third party fee scalpers you mention. We as consumers should not be excited for mandatory royalties on second/third/fourth hand items. An NFC chipped item w/ NFT will be impossible to sell without fees, as it will be impossible to avoid the baked in royalties in the NFT contract, no matter how you transfer the NFT, and who is gonna buy an IRL w/NFT if you aren’t willing to pay the royalties to move the NFT? This gives consumers less choice in the long run. Not more.
2 questions: \- 'NFC reader'(NFC chip) embedded in shoe - why it can't be cracked and dublicated so several fakes links to same on-chain record? \- Why somebody should use smart contact instead of just regular payment in cash/via paypal. Yes, this mean that smart contract records of owner and 'real' owner will differ. So what? Nike have agreement with police forces and courts all over world to make it possible to return shoes to owner according to smart contract? This remind me marker code system our country tries to implement for alcohol and many other things. Every item is coded, all transacations between manufacturer and end user scanned and sent to centralized system. end user can check code and see path. retail is NOT allowed to sell if code is not readable or they don't have this item according to central system. Official reason for this to exist - prevent fakes. (Likely) real reason - taxes. System uses special kind of DataMatrix code.
> Surely the private key isn’t stored in the shoe itself Even if it were, it's not exactly difficult to duplicate an NFC chip. This is the whole issue with "smart contracts" and off-chain data or physical goods, they can only ever be authoritative over data that is on the chain.
> The no-coiners can hold their whining since owning the NFT entitles you to a physical pair I guarantee you if I steal your NFT Nike isn't going to give me a free pair of sneakers. > The back heel of the physical shoe has an NFC reader that is linked to the on-chain asset which verifies the product's authenticity. This, beyond a shadow of a doubt, ends counterfeiting The chain cannot be authoritative over anything off-chain, and that goes triple for physical goods. Just put in an NFC chip with the same identifier, boom, counterfeited. There plenty of other workarounds as well. > This means, the consumer would be saving money As the poster listed above, the savings would come from Nike selling direct to customer in the first place. None of the saved money is coming from this shit - shipping and payment costs are unchanged, crypto payment processing is neither cheap nor free (and even if it were, most customers will not being paying in it). > When things go from digital to physical, they typically get 100x more valuable (Walmart to Amazon, Blockbuster to Netflix). This is such an absurd take there's really no response warranted but laughter. These companies had completely different business models. > Imagine buying a new pair of Dunks from your local skate shop, then getting a digital pair same day to throw on your avatar in the Otherside or display them on a shelf in your Meta Horizons social space? Just little ideas. Nobody wants Facebook's metaverse garbage
I think the utility absolutely makes sense. My issue with it is from an engineering perspective. It has no reason to be on a blockchain. There is a centralized issuer creating the tokens. The simpler, more effective, and more efficient solution is a regular old database with an API that can be checked using the unique ID stored in the sneaker’s NFC chip.
They are gonna start using these NFC tagged shoes with publicly placed NFC readers to try to track people in real life. This is just one step closer to mass surveillance. Imagine a day where you won't be allowed into a building without NFC shoes to track which rooms you entered. It does solve issues with ship lifting and other things tho.
Yes, I meant billion, as you can see by me dividing 1.8 billion by 365 "million" and getting 0.5%, sorry simple typo. > Everything else you've said up until this point is conjecture or speculation. No, it's an objective fact that a blockchain has zero possible way to monitor the physical world trustlessly. If you disagree, go ahead and name a single way that can happen. > They're also incorporating NFC tags into the physical shoe 1) In my example above where the guy sold the real shoe under the table and a counterfeit with the NFT, he could have simply removed the tags and put them in the counterfeit... 2) What happens if someone does scan a tag at some point, and it doesn't pan out? What are they gonna do? Sue the seller? NFTs have no legal weight. Dude just goes "Dunno man, I bought a pretty shoe from a guy for cash, I don't know anything about NFTs. What's an NFT?" And you're shit out of luck, also the blockchain is now just wrong. > it'll be on ledger and nobody will transact with the owner of that NFT. Also the ledger is anonymous, so this sentence makes no sense. You can't blackball me, because I can just make a new ethereum address in literally 5 seconds and transact from you again 5 seconds after that, with you being none the wiser that I'm the same guy. So....?
>Total shoe industry is 365 million. [You missed a zero. It's a little over 365 BILLION.](https://www.grandviewresearch.com/industry-analysis/footwear-market) Everything else you've said up until this point is conjecture or speculation on the technology. They're also incorporating NFC tags into the physical shoe that points to the on-chain asset. If there's ever a possibility of fraud, then it'll be on ledger and nobody will transact with the owner of that NFT.
NFC spoofing is just as much impossible. Assuming of course it is properly implemented. In the past many low-security use cases only used to unique ID of every NFC chip. And well, those you can simply clone. But exactly like blockchain, a basic secure implementation of NFC will have the NFC tag sign a message with its private key, and then you compare that to the public key. If you think spoofing a secure NFC implementation is not difficult: Try spoofing a contactless payment card ;) . The huge advantage NFC tags have here, is they are inside the product, instead if somewhere completely unrelated to the product, and you just have to trust the seller they actually belong together.