So over the years, I went back to uni, thought about the idea, fine tuned until it finally struck: A decentralized freelancing platform would level the playing field. Bitcoin is the future.
So how do you plan to verify activity outside blockchain in decentralized way? Other project i've seen usually use one or more oracle that introduce centralization. |
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Currently i have no reason to check whether an address is part of sanction. But i tried it a bit with few cryptocurrency address listed on US OFEC website and it seems to work properly. 📄 License
This project is free and open source. Anyone can use, modify, and distribute this software for any purpose.
It's good to see you decided to give open source license, although you may want to choose specific one (such as MIT license). |
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--snip--
But If you use a UTXO snapshot you're kinda trusting that the snapshot is correct. The node may not be able to notice if the snapshot is wrong because it hasn't re validated the entire history. But If it tries to broadcast a transaction it will be dropped by all other nodes immediately.
1. So what kind of trust you're talking about? The blog i quoted earlier clearly stated it check whether the snapshot meet expected hash (hard coded on Bitcoin Core code). 2. If the snapshot is wrong/not expected, the hash should be different. |
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some people are already using, 150w to get 7TH seem cool, ten pieces of this card is 1500w @ 70TH
It's energy efficiency isn't that good, even when compared with ASIC aimed for solo/hobbyist miner. For example, Bitaxe Gamma 601 (released middle 2024) use 17W for 1.2TH/s. |
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There's also the very lightweight " Electrum Personal Server" ( EPS link) but it's quite outdated and haven't been updated for 3years now. Let's not recommend that. Electrum communication protocol have changed few times[1], where i don't know minimum version accepted by newer version of Electrum. Bitcoin Core also occasionally change it's RPC call behavior. Talking about outdated stuff, there's one Electrum plugin called bwt[2] which aim to let Electrum directly connect to Bitcoin Core. Although i do not recommend it to OP since it haven't been updated for 4 years. [1] https://electrumx.readthedocs.io/en/latest/protocol-changes.html[2] https://github.com/bwt-dev/bwt-electrum-plugin |
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I believe you asked question on wrong forum. You probably should ask it on programming or database forum, rather than Bitcoin forum. I don't know much about database, but you may want to consider whether you'll release it as closed-source, open-source or something else.
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--snip--
Well, that scammer's reputation is already ruined and with such reputation even applying a signature of scam website won't help him/her much. I somewhat disagree. User Velkro used to wear signature about scam vanity address website for almost a decade while frequently post on "Beginners & Help" board. Banning accounts of such scammers is going to put so much burden on the shoulders of the admins/moderators and even with bans they can still create new accounts and find ways to continue their old habits.
Do you you clarify how banning account is going to put so much burden? Do you mean reviewing the proof or something else? this scammer have four accounts.
Firstly I didn't bother opening the link. Users here will easily consider you an alt. If there is concrete evidence that a person breaks the forum rules resulting a ban penalty then eventually he'll be banned. OP present it in lazy way, so it's not surprising many member won't even look at it. But aside from what OP said, user "coaltin" also created many spam/AI generated posts where i reported some of them. Here's an example where all of them deleted by moderator, It should be another reason for moderator to consider permanent ban. |
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Pruned node only reduce storage space requirement, but other requirement remains same. What other requirements are you concerned about? If you cut down connections bandwidth and memory are also reduced. I have no specific concern regarding OP's case. My statement assume there's no other change besides enabling pruning. |
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--snip--
My point is those points aren't exactly "Key features" or outstanding compared with today's offline signing.
I appreciate your honest feedback — and I understand your hesitation. I agree: most so-called "offline crypto" solutions today just mean signing on one device and broadcasting later via QR or USB. What I’m working on includes the full peer-to-peer transmission layer — without using traditional proximity-based channels like Bluetooth, NFC, or LoRa. And yes, the distance is global — not just short-range. I said "offline signing", not "offline crypto" which usually refer to different thing. --snip--
because i had done tests now guys you can check this my first offline transaction with proof i send 3000 satoshis https://mempool.space/testnet/tx/501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2 I completed a full crypto transaction — from device to chain — with no connection, no data, no internet, and no infrastructure. It’s real. And it works. ✅ Transaction broadcasted successfully! 📨 TXID: {'txid': '501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2', 'response_dict': '501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2'} TX data doesn't even contain information about how the TX is created or transmitted, so nobody can verify your statement. |
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--snip--
-------------------------------------------------------------------------------------------------------- Thanks for your question — and it’s a good one. No, I’m not using QR codes or camera scanning between devices. What I’m building is not a cold-wallet model or standard airgapped QR flow. It’s something more direct and unconventional, where data is exchanged between devices without traditional I/O or connectivity (no QR, no Bluetooth, no NFC, no Wi-Fi). The fact that the transaction is valid is just a byproduct — the real innovation is in how the TX gets from device A to B. and it gets Globally! not like 10 meters away! No offense, but from my perspective it's either have limited practicality, fictional or revolutionary. I understand your point — but I’d argue that “offline TX” usually means just signing offline and broadcasting later. What I’ve done includes transmission too — without any external connection.
That’s what I believe is the novelty here.
My point is those points aren't exactly "Key features" or outstanding compared with today's offline signing. |
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 Sorry OP but, WizardSwap conducts internal monitoring for suspicious activity. If a transaction is flagged as suspicious, your funds may be frozen or seized. Did you read their faq? Further, to obtain XMR or other coins, simply contact us on simpleX — we can provide you without any AML or KYC checks. Check it out our thread ---> bitcointalk.org/index.php?topic=5539912.0 FWIW, this FAQ only added somewhere in middle or late December 2024[1]. It wasn't exist on early 2024[2]. If OP used wizardswap long time ago, it's not surprising he wouldn't expect such addition/change on how wizardswap works. [1] http://web.archive.org/web/20241228154329/https://www.wizardswap.io/faq[2] http://web.archive.org/web/20241209232147/https://www.wizardswap.io/faq |
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I use neither, but there are few things i can clarify. 2. Umbrel seems set up to use TOR as an option, whereas Start9 seems to have TOR on by default. I don't really want TOR running all the time, and from what I read, bitcoin core doesn't use it anyway. There is probably a way to disable it in Start9 from the command line, but I wonder if that will break things.
Bitcoin Core actually support Tor, see https://github.com/bitcoin/bitcoin/blob/master/doc/tor.md. But you need to check with Umbrel or Start9 whether you need to configure Bitcoin Core manually to use Tor. So you can turn TOR off (I'm not sure how, but I can probably do it from the command line) without breaking anything? My internet is pretty fast, but I had a data cap that I just paid to get rid of, so I should be good.
I'm not sure what exactly you mean by get rid of data cap. But FYI, current Bitcoin blocksize is about 700GB. If I can do that I am leaning to Start9 over Umbrel. From what I can gather on the internet, Umbrel has more layers of containerization than Start9, so will probably be more complex to troubleshoot? I guess I could go with a basic Debian server, but I'm more interested in learning about Bitcoin than Linux sys admin.
Looking at some discussion at Start9 website, it seems Start9 also use docker (one of containerization tool). Here's an example, https://community.start9.com/t/docker-error-no-space-left-on-device/2875. |
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I’ve recently completed successful testing of a prototype that enables sending Bitcoin transactions between mobile phones — with no Internet connection, no Wi-Fi, no cellular data, no Bluetooth.
By any chance, do you use screen (that show QR code) and camera (which scan QC core) ? Key features:
✔ Fully compatible with Bitcoin transaction structure (validated on testnet)
✔ Secure: no replay/double-spend vulnerability
For these points, IMO it's not worth to mention since your usual offline TX does same thing. |
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What versions before v.04 that is encrypted and produce iteration less than 25000? Can you name one or two just to have a glimpse of which ones you meant.
If you're asking this question to @lucas85moose (who made post above yours), then you wasted your time. That account is used for SEO spam purpose (the spam link is hidden inside 1pt text) and i bet his reply is AI generated.
What about the release or testing versions before this version ? Because I have seen a lot of wallets with count less than 25000, are they all fake ?
I don't know your ultimate goal. But these days, i would just assume all wallet.dat that can be found on internet as fake. I also would like to re-share this statement by one of Bitcoin Core developer/contributor. The wallet file isn't fake per se, nor are the transactions it shows. What's fake about it is that it doesn't contain the private keys it claims it does. The method of identification is to look at the corresponding version of the wallet code, check the data consistency, time, field, type, structure, It looks very complicated.
It actually is not that complicated. You don't need to check any data consistency, time, etc. You don't need to check any of the things you mentioned. You also don't really need to look at the wallet code because the data that they are manipulating doesn't change frequently, if ever. In fact, the specific database fields that are being modified will likely never change in order to maintain backwards compatibility with older wallet versions. What the authors have done here is simply add fields which represent encrypted keys. These fields contain the pubkey and the encrypted private key which will typically just look like random data (because that's the point of encryption). What the authors have done is just create a field that contains the pubkey and random data (or in this case, a string) as the private key. It is impossible for anyone (technical or not, professional or not) to identify that the wallet is "fake" by simply looking at it (besides the fact that common sense tells you its a scam). If done correctly, the supposed encrypted key will be garbage data and its veracity cannot be determined without knowing the decryption key. Of course, if it's just zeroes or some other obvious non-random data, then it can be easily determined. You can inspect the data of a wallet.dat file using BDB 4.6's db_dump tool. |
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Thank you guys for the information. So yes we already use bitcoind as a wallet so we can send btc(by calling rpc) and receive "walletnotify" messages. And idea was keep using it as it is but do not have full synced node... So I can see from your answers it is not possible.
Thanks!
Yes, it's impossible to achieve what you want with Bitcoin Core. There's no option to let you request specific data on other node/server. Pruned node only reduce storage space requirement, but other requirement remains same. Other user have mentioned to use different wallet, but i expect it's not applicable to you since, 1. You need to move Bitcoin and rewrite some of your software. 2. Some of mentioned software have GUI and there's no way to run it on server without the GUI. |
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a few months back i was looking into phone farms and how some people make money off them, and i remember CryptoTab app came up a lot next to other apps like swagbucks, cash magnet, current and a few others.
it's basically adware, possibly even malware, that turns any device it's on into a zombie.
Adware? Personally i would classify those software as spyware since they collect and share/sell user data. Malware also fits on some cases. it's part of the gray make money corner of the internet, they basically pay you pennies (if they don't scam you) to use your device bandwidth to spam you with ads and whatever else they do in the background with you knowing.
It's common pattern so some gullible users wouldn't realize they got deceived. Although looking at review of CryptoTab, it seems they allow you to make few withdraw in small amount before suspend you or forbid you to withdraw. People should know that you cannot mine anything using a mobile device. You are a product to them. They show you ads, use your bandwidth, and your personal data to show you personalized ads so they can make more money. I never used this browser, so I do not have any idea how it works. If I am not wrong, another browser was sending BitTorrent tokens to the browser users. I guess Brave browser was also promising a similar thing to their users, NO?
I don't know what browser give you BitTorrent token. But IMO brave browser have far less red flags than this CryptoTab. Source code of brave browser is available and their token reward is opt-in/optional. |
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Since you're fairly technical user, are you aware of blockchain explorer that claim to use fully homomorphic encryption? The website is no longer online, but it supposed to let them perform some query task without knowing decrypted input/output data. |
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Stop making post in a row, you violate forum rule. 32. Posting multiple posts in a row (excluding bumps and reserved posts by the thread starter) is not allowed.
--snip--
Also as for the CryptoTab thing, it was legitimate. It was my intro to mining. I mined 1,000 sats in a month from the app.
Yes, that's not a lot, but it was an intro course for me.
I wasn't "shilling" it. I mentioned it to another member of the forum, as an intro to mining.
I now do some home mining myself with a couple of Avalon nano miners. I don't get a lot of sats from it, a few hundred per day, but I like contributing to the network hash rate, and I enjoy it.
Do you really think CryptoTab legit? Have you seen it's review on trustpilot? |
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User: JibdeenAdditional information (optional): * This user suspected using AI/chatbot, see his trust feedback. * This user suspected peforming plagiarism, see https://bitcointalk.org/index.php?topic=1926895.msg65627497#msg65627497. * Some of the post already deleted by moderator before i write this thread. List of post: To unlock my wallet?
If you forget your wallet passphrase. However, it matters how the wallet is structured to access it using key: 1. Private Key: If you have the private key associated with the wallet, you can access the funds directly using the key, bypassing the need for the use of passphrase. This can only be possible if your wallet allows the import of private key 2. Seed Phrase: If the wallet was created with a seed phrase (mnemonic), the seed can sometimes also be used to recover the wallet. Depending on the application, the seed phrase may or may not be encrypted with the passphrase. 3. Encryption: If the wallet is encrypted with a passphrase, you would still need that passphrase to decrypt it, even if you have the wallet's private key. If you only have the private key and the wallet is not encrypted, you should be able to access your Bitcoin. But if the wallet is encrypted with a passphrase and you don't remember the passphrase, recovering the wallet becomes much more difficult without it, even if you remember the wallet key. 1. If you already have private key, you don't have to deal with encrypted wallet. 2. Seed phrase always can be used to recover your wallet/Bitcoin, unless you miswrote it or the wallet generate invalid seed phrase. 3. Passphrase for seed phrase (BIP 39 ones) isn't used to perform encryption. not true theres tons of new projects out there this year alone that are doing very well this is just the beginning of the industry
Which one is not true? Having a clone version of Bitcoin with the same feature? Why would I go invest in that new project without a unique feature? Anyone can create a clone version of BTC, but the problem is if you think deeply, why would people use that coin if it works just like BTC? No use case? Have you noticed most of the GPU mining these days? They are dying compared to BTC. Look at some scammers; they use pump.fun to create a useless token to scam anyone. For sure budding a clone version of bitcoin is a wrong decision because it doesn’t have any additional benefits or new features. For anyone looking to create a custom crypto currency, I think drafting a new ideas, different features and a pattern for potential success that will attract investors is essential. To avoid being scam tgat I’d the reason why I don’t invest in other coin other than bitcoin because bitcoin is the most trusted crypto currency even tho sometimes during altcoin season investment in altcoin to buy and sell is somehow beneficial. Generally off-topic/unhelpful since the topic is about someone who ask whether they should use Bitcoin or create their own coin for their self hosted (?) AI project. --snip--
This highlight the reasons why future blockchain nodes needs to operate without full storage of transactions history data. I’m currently on a research to know how these innnovations could pave way for higher transactions and more adaptation of blockchain technology. I found this article helpful Generally unhelpful/spam, since it doesn't add anything to the topic.  Source: https://ninjastic.space/post/65642794Generally unhelpful/spam, as it has been deleted by moderator.  Source: https://ninjastic.space/post/655740671. Blockchain explorer hardly can be used for proper blockchain analysis purpose. 2. Glassnode and intoTheBlock mainly provide statistic of blockchain data. Their homepage doesn't mention feature to track specific address or UTXO either. |
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