FWIW, http://web.archive.org/web/20180611023059/https://github.com/Coinomi/coinomi-android shows that Coinomi used to publish source code for Coinomi Android version. But since it's just page snapshot and that repository no longer exist, i can't verify what kind of license they used to apply.

This question have been asked many times on this forum, so i'll just give short answer. I'm just a geek though, not actual expert/professional.


The common suggestion is to start by visiting "learn me a bitcoin" website[1] or reading Mastering Bitcoin book[2]. Both of them are available for free and legal.


Jameson Lopp website have long list of technical information[3]. If you're looking for discussion or progress of certain topic, Bitcoin Optech[4] is also decent source.

[1] https://learnmeabitcoin.com/
[2] https://github.com/bitcoinbook/bitcoinbook
[3] https://www.lopp.net/bitcoin-information/technical-resources.html
[4] https://bitcoinops.org/

Without asking detail of your TX (such as whether it's non-standard TX), have you consider contacting major mining pool to include your TX? Are you aware of existence of service such as MARA Slipstream[1] where you can just enter your raw TX?

[1] https://slipstream.mara.com/

I agree with @FP91G. Although i would also check final price (which include tax, shipping, import and other cost) of buying 1 BitAxe 601 or 4 NerdQAxe++ to consider which one to buy.

AFAIK it's impossible. Current Bitcoin P2P Networking[1] doesn't seem to have any call to request arbitrary data (which could be stored to request proof of identity). And while i don't know what you're trying to achieve, have you checked bitnodes website[2]? They collect and combine data they could get from other Bitcoin nodes.

[1] https://developer.bitcoin.org/reference/p2p_networking.html#version
[2] https://bitnodes.io/

Aside from what other member said, i also wondered why you specifically mentioned term P2PKH (sometimes called legacy address) but doesn't mention other kind of address (e.g. P2TR).


To be exact, it's no longer applicable today since wallet these days create HD (hierarchical deterministic) wallet.

I didn't try it. But after reading the README, it seems your developer worked on it. Anyway, you may want to specify license of your pywallet. I stated this because it currently have no license[1].


At a glance, it looks good. But on "Other Open Source Bitcoin Wallet Recovery Tools" section, do you mind adding BTCRecover forked by 3rdIteration[1]? It's fork of BTCRecover with more feature, documentation and optional paid support/request.

[1] https://choosealicense.com/no-permission/
[2] https://github.com/3rdIteration/btcrecover][url]https://github.com/3rdIteration/btcrecover[/url]

I don't expect any parent to suspect their child commit actual crime, especially if their child have no history of doing criminal activity or really bad behavior. Regardless, monitor or asking them some details would be great regardless considering risk they may fall into scam or invest on something without actually knowing the risk.

To OP, i don't know where you and that father lives. But depending on where you live, not reporting someone you know committing crime may cause legal trouble. Have you and him consider taking next action?

User: Triskel Data

Additional information (optional):
* SEO spammer.

List of post:



Thread link: https://bitcointalk.org/index.php?topic=5548040.msg65524720#msg65524720
Archived link: https://ninjastic.space/topic/5548040

1. The website link barely talks about Bitcoin.
2. The image link isn't related with Bitcoin.
3. There's no correlation between block size and energy used to mine a block. In short, energy used to mine a block affected by ASIC miner use and mining difficulty.
4. Claim of faster TX speed/latency is pointless without mentioning time to compress and decompress.

This is a new kind of SEO spam on technical board, where it appears legit on first glance. There are other questionable/false technical information on that thread, but i wouldn't bother to mention all of it.

There's no OPCODES to verify signature that comes from different cryptography. So it seems 2nd and 3rd option feels same, where the proof is just quantum public key rather than quantum signature. And if you broadcast the TX publicly, there's risk of double spend (for theft purpose) since the spending condition is based on providing arbitrary data rather than signed signature. CMIIW.

Have you consider asking this question on one of local board where you speak the language? To see list of those local board, visit https://bitcointalk.org/index.php and scroll down until you see text "Local".


"Electrum might have some unknown mechanism"? Other member have stated it's because other wallet doesn't let you create wallet using mnemonic phrase with invalid checksum while Electrum does.

Aside from what other member have said, it's also worth to mention that few years ago some news media report Iran have limited power issue and decided to ban Bitcoin mining.


I just visited https://bitinfocharts.com/comparison/bitcoin-hashrate.html# and it seems their approach to smooth the graph give you wrong perception. https://mempool.space/graphs/mining/hashrate-difficulty shows non-smoothed graph, which shows that April 24 2025 also had similar massive hashrate "drop".

I agree with @stwenhao, OP_RETURN is less harmful than other option to add arbitrary data on Bitcoin blockchain.


P2MS is old form of address with N-of-M signature requirement to spend it. So Bitcoin node which prune all P2MS UTXO from it's UTXO list unable to verify TX that spend one or more P2MS UTXO and likely to treat it as invalid TX.


Some people really have wild idea. If it become reality, it may turn into mouse and cat game where token/NFT protocol will enforce or recommend to create UTXO with higher satoshi value.

I don't know what exactly you mean by save. But in short, Bitcoin node keep partial/full blockchain data and UTXO set.


You need to explain what cool factor means. But,
1. You just need full node to get relevant transaction associated with address on your wallet.
2. There's no thing such as certain coin/UTXO related with specific node.

AFAIK there's still no full node software that allow prune only OP_RETURN output. Besides, it doesn't change the fact you still need to download and verify whole block first.


Bitcoin Stamps (also called SRC-20) actually use P2MS. Here's the proof, https://github.com/stampchain-io/stamps_sdk/blob/main/docs/src20specs.md.

Staff doesn't have that much resource to monitor all created posts/threads. And AFAIK, the only automated detection and removal system is MindlessElectron bot[1].


It comes down to whether how good is the detection, including how frequently false positive is happening. And as reminder, this forum doesn't moderate scam. Besides, admin could do something much more simple by updating rule to make spammer got permanently banned/nuked much faster, especially one who use AI/chatbot to create spam.

[1] https://bitcointalk.org/index.php?action=profile;u=1136003

Yeah, he received several accusation of using AI to create spam. I also seen that some spammer need to have lots of their posts deleted before getting permament ban/nuke, which is reason people discouraged from making report.

I tried reporting few of his thread and posts few days ago. While all of them marked good by moderator, it turns out moderator sometimes decide to lock his thread rather than deleting it. So FWIW, actual total post and thread reported and marked good is higher than total of deleted post/thread.

This question should be extended to people in various condition (such as live far from WW3 or live in country directly participate in WW).

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For people on such unfortunate condition, they probably should consider brainwallet if having electronic device or paper (contain recovery words) have serious risk of being stolen or put you at additional risk.

There's no correlation between maximum block size and what kind of device used by miner to perform mining. Short version, actual mining operation is SHA-256D hashing on 80 bytes block header. The actual reason miner keep switching their mining device is to remain mine Bitcoin profitably.

As customer, i would suggest this option. Aside from what @OmegaStarScream suggested, i would also recommend you to use fee rate which ensure the TX can be confirmed within next or 2nd next blocks.


I'd speculate it have similarity with exchange listed on https://kycnot.me/.