what exactly is this? Does this mean every TX gets hashed twice? How does it help to filter the content from the block chain (As Dr. Wright said)? Why cant i hash it just once and save the hash of the TX and prune the data (illegal)? Isnt the content now filtered with just a single hash? or am i getting it wrong?
I noticed that even with -txindex disabled getrawtransaction RPC call still returns transactions. I assume that without the full index it will still return transactions that node software needs for other reasons (wallet transactions, UTXOs, …). But what are those cases? Which types of transactions are available even without the full transaction index? And what happens if I request a transaction that is not available?
How to calculate a merkle tree? What is “merkle proof” and how does it fit into the SPV? How does one validate a merkle proof? And how all that affects Bitcoin?
Is there a way to programatically post a Twetch? If yes, how should one do it?
I have some code that does a lot of HD derivation and ECIES encryption/decryption and I noticed that it runs quite slow in the browser. I did some profiling and it seems that it spends most of the time in the libraries that handle primitives (sha256 hashing, big int, …).
This makes sense as it seems that we have this primitives natively in node, but we need to use libraries in the browser. I did some Googling and it seems that newer browsers do have some support for this things so I was wondering if it is possible to use that when available? I suspect that would speed up things significantly?
I am thinking about browser’s native APIs such as SubtleCrypto and BigInt. Or even an Emscripten-compiler Javascript library such as js-nacl.
I would like to know if there’s a simple golang library that it is possible to use to build and send BSV transactions.
I am a Windows programmer and I know C++/C#. I want to know how to develop a BSV program, Who can help me?
Now, this will obviously require some speculation, but why not. There are many exciting Bitcoin SV applications being released practically at a daily basis, but they are arguably mostly used by the (still small in grand scheme of things) BSV community.
I predict that at some point we’ll see one/some of those applications gain attention of the general public and take off - probably dragging the entire ecosystem with them.
If you could bet which (or what kind of) app that will be, what would you bet on?
The answer should be extremely simple easy to find and any person can easily verify it.
And a step to step guide how to do it yourself with all the links attached to it
Is it possible to get a current unspent transaction outputs set from a Bitcoin node? Or more generally, is it possible to get a UTXO set at an arbitrary block height?
If not possible through a node, is there any other solution that provides that?
