coin777

I wonder, how you got that address. But whatever is there, it can lead you to something unspendable. Also, I wonder, which version of the library was used, and what was the result of each step in-between. Because I got…

Exactly. Mining a single byte in transaction ID is very easy. There are transactions with four mined bytes, for example: https://mempool.space/tx/000000000fdf0c619cd8e0d512c7e2c0da5a5808e60f12f1e0d01522d2986a51

This will not solve it. If you force miners to not mine an empty block, for example for the first minute, then I can tell you, what miners can do: they can set the time of the block, one minute into the future, mine…

It is simple: in the past, nobody knew about Bitcoin, and there was no transactions in mempools. It was normal to have an hour, when nobody sent any transaction. And guess what: in that case, miners had no choice, but…

Just to let you know: I created a list of 256-bit curves, with p-values, b-values, and n-values, as close to secp256k1, as I could. Also, in this case, secp160k1, secp192k1, and secp224k1 were reached with the same…

Don't do that. If for each prime "p" you are trying to generate the full table of all inverse values, from 1 to p-1, then this is one of your bottlenecks. Just use the extended Euclidean algorithm, and calculate all…

Just because P2SH pushes more data on-chain. Native Segwit: bc1qspfmyevfh5apy66gqptg62h0c64pdyt8wdxx75 1. On-chain push in legacy output: 00149248e4c6f4ead8800bce8d27362d02d1b72be56d 2. On-chain push in legacy input:…

Both. Because for example Satoshi used P2PK in the Genesis Block:…

Because it is as close to the mainnet, as possible. In the first version, even the Genesis Block was identical, so it was possible to literally overwrite the whole chain. Then, some small changes were introduced here…

https://bitcointalk.org/index.php?topic=5479988.msg63437260#msg63437260 As you can see, we have transaction ID 0f3601a5da2f516fa9d3f80c9bf6e530f1afb0c90da73e8f8ad0630c5483afe5 in the mainnet, and exactly the same thing…

You can always claim less coins in the coinbase transaction, than you are allowed to. It is a perfect no-fork, not even a soft-fork. If you can claim 0.01220703 tBTC today, then it is the upper amount. You can as well…

True. The big question is: what should be the new consensus rules of testnet4? Because the story is that developers already tried to make a better version of the testnet, and they came up with signet. Which means, that…

https://github.com/bitcoin/bitcoin/blob/master/src/script/solver.h#L22 https://github.com/bitcoin/bitcoin/blob/master/src/script/solver.cpp#L164 This is Taproot, also known as P2TR.…

Accumulating a lot of test coins is like accumulating a lot of testing potential. You can use it for your testing or send it to anyone else (by setting up some faucet, sending it to any active address, etc., it doesn't…

Let's see: https://en.bitcoin.it/wiki/Protocol_rules#%22tx%22_messages

https://github.com/bitcoin/bitcoin/blob/master/src/policy/policy.cpp#L70 No. When you have "scriptPubKey", then it is just a field, expressed as "const CScript& scriptPubKey", which contains raw bytes of the Script. But…

The miner's incentive is that you can test something and show your test results to everyone else. That's all. Because testnet creators thought that if coins will be worthless, then everyone could use them without…

Ordinals are also allowed by "default behavior of Bitcoin Core", but they are filtered by some mining pools anyway. data carrier: https://github.com/bitcoin/bitcoin/issues/27043 bare multisig:…

This is not the case, for two reasons: 1. The search space is always limited by n-value in ECDSA, which is 0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141. 2. The more addresses you create, the more…

Congratulations, you just invented brainwallet. And it is easy to break, see: https://privatekeys.pw/brainwallet/bitcoin/1 And if you have x-only-pubkey, then you can basically use P2TR as your address type. I wonder,…