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I use console sometimes, but honestly i'd rather use browser to access Bitcointalk. Lack of image and proper quoting visualization is big turn off for me.
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Not the best, but i think it deserve a mention or two. Privacy and/or anonymity work both ways round. - People use privacy to do bad things because good people are stopping them otherwise
- People use privacy to do good things because bad people are stopping them otherwise
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if I want to send coin to new user, he must sync whole blocks?
The new user can generate address without sync anything, but they must sync whole blockchain in order to see the transaction on their device. I want to send coin without waiting sync. How?
1. Create SPV wallet (e.g. fork of Electrum) for regular user. 2. Use another device/tool to create unsigned transaction and use forked Bitcoin Core to sign it. |
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I use paper wallet online generator at that time
I just feel safer using Paper wallet because honestly all I need is my Wallet address and Block explorer to check my balance, no need to connect to the internet
Don't you see the problem with your setup? 1. You generate the wallet online, where you could use malicious website or infected device. 2. Usually you'll use online device to spend coin from your paper wallet. Unless you have airgapped setup where you use online device to create raw transaction and use airgapped device to insert private key (from paper wallet) and sign the transaction manually. |
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you will need to use a hashing algorithm that can handle a sufficiently large number of items I didn't expect SHA256 to be so slow. I just tested a simple bash loop, and get less than 1000 hashes per second. That won't scale well to 40 billion inputs. As @vjudeu said, you used un-optimized tool. You should use optimized tool such as hashcat. Even on single core VPS, i managed to get ~5000 kH/s. |
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If a see phrase is stolen if another person got hold of the person that use his device as wallet, this can not be commonly successfully done, but if it is done and the wallet is compromised this way, should we blame it on the word predictor or we should blame it on wallets that do not bring out virtual key board. I believe if virtual keyboard is used, this wouldn't have happened. Many wallets should not be used.
I disagree with idea to avoid wallet without it's own virtual keyboard. User always could use different keyboard which doesn't collect user data or at least have option to disable predictive feature. I would recommend AnySoftKeyboard[1] for most people and Simple Keyboard[2] for those who only need most basic feature. [1] https://anysoftkeyboard.github.io/[2] https://github.com/rkkr/simple-keyboard |
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1) It's not a 100% standard card and Dell has something custom either in the hardware or firmware that causes it to get funky under linux.
It's known problem that some WiFi and mobile broadband card doesn't work on linux. But what linux distro did you use? Have you tried install optional/closed-source driver (few distro require user to do it manually)? I tried Debian and Ubuntu 1st figuring that when Debian did not work Ubuntu, although close to it may do something a bit differently. Then I switched to CentOS and still no go. Tried every driver I could find related to the card both open and closed. It's not even that smooth under Windows, after install you have to *power down* not just reboot. Assuming you tried non-free firmware from Debian, looks like you've tried everything that i would try. I only could suggest you to try this guide ( https://wiki.archlinux.org/title/ThinkPad_mobile_Internet#Alternative_method) which also use Qualcomm Gobi. |
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Anyone ever tempted to run a node off a solar panel? I assume a single board computer would likely be the most realistic way of going about it.
Not..... yet! I plan to get something relatively large but still single panel that would easily power a node even on cloudy days. The more ambitious part would be also developing a hashboard that is then dynamically powered on / off depending on sun availability. Mainly to show the counterintuitive concept of harvesting otherwise 'lost' energy (since the solar panel will produce much more than what a little pi needs on sunny days) and therefore run not only carbon-neutral, but you could argue carbon- negative mining.  I would disagree it's carbon-negative. You need to consider carbon footprint during production[1] and whether it's recyclable after the panel reached end of life/broken[2]. 1) It's not a 100% standard card and Dell has something custom either in the hardware or firmware that causes it to get funky under linux.
It's known problem that some WiFi and mobile broadband card doesn't work on linux. But what linux distro did you use? Have you tried install optional/closed-source driver (few distro require user to do it manually)?
[1] https://www.1energysystems.com/carbon-footprint-of-solar-panel-manufacturing/[2] https://www.nature.com/articles/s41560-020-0645-2.epdf |
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One small problem is that raspberry pi zero is not always easy to find now due to chain supply issues, and even if you find them price probably won't be so cheap like it was before. I see the problem. It's out of stock in Greece. What if I buy a RPi Pico? RPi Pico is micro controller (similar with some Arduino). You can't run linux on it since it has 264 KB RAM. Does it have to be strictly zero?
Most RPi should be fine (unless it's very old type), although faster device is not necessary when you only run linux + Bitcoin wallet (which only used for signing transaction). |
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Low-level changesRPC- getblockchaininfo now returns a new time field, that provides the chain tip time. (#22407)
Did you forget to mention listdescriptor now has boolean parameter to show xprv rather than xpub? |
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Get bitcoin core's source code and modify the database part to create an additional index while saving each block where it stores any output that was used. It could be in form of a hash of the output script so that searching is simpler. Fully sync by downloading and indexing the blockchain. Run your code to hash each item in the dictionary to get the key then create the outputs and hash them to compare search within the database you created.  Alternatively run both Bitcoin Core and block explorer (such as mempool.space[1]) or Electrum server (such as Fulcrum[2]). After initial sync/indexing is done, you could write a script which read the dictionary, generate address and check address history on your own block explorer/Electrum server. If you decide to use Electrum server, you'll want to check Electrum protocol[3] to know how to get address history/balance. [1] https://github.com/mempool/mempool[2] https://github.com/cculianu/Fulcrum[3] https://electrumx.readthedocs.io/en/latest/index.html |
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That data is either not accurate or obtained from different full node implementation. Blockchain size on my device (using Bitcoin Core) is almost 430GB. You also need to include chainstate which has size about 4.7GB and index ( txindex and blockfilter) which has size 43GB. And I would recommend a bigger disk, at least 1TB to avoid this kind of problems. The blockchain is growing up fast.
I agree. |
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Since no one mentioned it yet, i'd like to mention that Rootstock (RSK) exist. It's Bitcoin sidechain which support smart contract with merged mining to Bitcoin network.
Rootstock is **not** a Bitcoin sidechain as per the sidechains whitepaper. It does **not** benefit from Bitcoin hashrate. Did you even check RSK mining page[1]? It's clearly stated it utilize Bitcoin mining hashrate. The paper[1] even state it. Satoshi consensus, based on proof-of-work, is the only consensus system that prevents the rewrite of blockchain history at a low cost. The academic community is advancing the knowledge and study of proof-of-stake as an alternative, but currently PoW provides the highest proven security. Merge mining is a technique that allows Bitcoin miners to mine other cryptocurrencies simultaneously with nearly zero marginal cost. The same mining infrastructure and setup they use to mine Bitcoins is reused to mine RSK simultaneously. This means that, as RSK rewards the miners with additional transaction fees, the incentive for merged mining becomes high.
[1] https://mining.rsk.co/[2] https://www.rsk.co/Whitepapers/RSK-White-Paper-Updated.pdf, page 15. |
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So, how do we verify that the hardware doesn't generate predictable entropy, regardless of whether the wallet developers have bad intentions or not?
Unless you have capability to understand the design of the hardware or at least perform randomness test[1], you either trust the hardware company or someone who audit the hardware. I'm fairly sure there are decent amount of cryptography auditor, but i've no idea how common auditor for hardware design/architecture. [1] https://en.wikipedia.org/wiki/Randomness_test#Specific_tests_for_randomness |
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If you mean running a full node, you could check https://bitcoin.org/en/full-node. Since current blockchain is about 430GB, make sure you have sufficient space for it and check how much quota/download cap imposed by your ISP. |
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I just tried listdescriptors and i can see why OP having hard time. Descriptor documentation[1] is quite nice with lots of example, but you need to generate private key from xpub (either by writing script using Bitcoin library or specific tool). Also, what does key active and interval exactly mean? Explanation from help listdescriptors isn't exactly helpful. {
"desc": "sh(wpkh([90c0824b/49'/0'/0']xpub6CtLZRCJq9VhW13n5HRsc6RffeLPFfw2XMQ2ry3vk3yMgYzYeSw6NQQTA1sqwEFafmKyiu7pKdsVQk32kGL4KtqDWR1Uv31n8EnBjqWaYVV/0/*))#8d66tyfh",
"timestamp": 1650887744,
"active": true,
"internal": false,
"range": [
0,
999
],
"next": 0
},
[1] https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md |
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I wouldn't accuse bitcointalk block image from medium without additional proof, it's possible Medium now forbid hotlinking or automatically block certain IP/domain to prevent DDoS.
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--snip--
i was searching darkweb on facebook and got a page of this community and than i search by myself What kind of darkweb which use CloudFlare? IMO it's either scam or honeypot to deanonymize certain people. i dont know this is new i am sorry i am a noob thats why i was here to ask you guys do u know about this website but no one answer me
You could be patient though. Forum isn't exactly known for quick response and not many user visit this board (Service Discussion). but finaly i have placed an order and still i did not got anything i am still on wait
Not surprising, although it's likely you encounter re-verification problem even if you receive credential of the stolen account. |
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