06:24:04 <jeffro256[m]> Hey y’all I was joking earlier about Monero having it’s Y2K moment, but I think I actually found a future bug. LMDB uses a uint64_t to store the cumulative number of coins up to a given block height in mdb_block_info. That value is going to overflow in about 1.8 years. At that point, tx fee verification is undefined
06:26:36 <jeffro256[m]> The method interface that accesses that value is BlockchainDB::get_block_already_generated_coins and the Blockchain::check_fee method is used to allow/disallow transactions to enter the mempool so the network might come to a grinding halt when that happens
06:29:10 <sech1> No, it's just a 64-bit value that gets capped to 2^64 - 1
06:29:29 <sech1> it's used to calculate block reward, so values >= 2^64 are not needed
06:31:45 <sech1> https://github.com/monero-project/monero/blob/master/src/cryptonote_core/blockchain.cpp#L4441
06:40:34 <jeffro256[m]> Thanks for the pointer :)
06:40:58 <jeffro256[m]> That’s a weird way to do it but I guess it works
06:41:13 <jeffro256[m]> That’s good to know
07:21:10 <sech1> And it's less than a year until it reaches 2^64 - on June 6, 2024 by my calculations.
07:43:47 <jeffro256[m]> I was using coin gecko’s total supply number which I think is behind
08:00:28 <Pascal123> Hello Guys
08:00:44 <Pascal123> i hope you are doing well :)
08:01:30 <Pascal123> Could someone tell me, why this simple call to monero daemon not works? its such a simple call, but the daemon does reply nothing...
08:01:32 <Pascal123> {"jsonrpc":"2.0","id":0,"method":"get_block_header_by_height","params":{"height":912345}}
08:01:46 <Pascal123> ,please
08:03:04 <Pascal123> i m connecting via tcp socket
08:06:04 <sech1> No one can tell you because you didn't tell anything about how exactly you send this simple call
08:06:25 <Pascal123> hi sech
08:06:28 <sech1> what software you use? What is the command line you use? Your OS? Where is the monerod running, locally or not?
08:06:31 <sech1> monerod command line?
08:06:34 <sech1> firewall settings?
08:06:44 <sech1> curl http://127.0.0.1:18081/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_block_header_by_height","params":{"height":912345}}' -H 'Content-Type: application/json'
08:06:46 <Pascal123> no i send it from code with tcpclient
08:06:56 <sech1> this one 100% works if you run it on the same PC as monerod
08:07:11 <Pascal123> yes , i run it on same machine
08:07:20 <sech1> tcpclient? What is it?
08:07:37 <Pascal123> .net c#
08:07:46 <Pascal123> its a socket client
08:07:47 <sech1> what programming language? Do you know it should be an HTTP request with this json?
08:07:59 <Pascal123> no,i did not know
08:08:16 <Pascal123> ok, then this is the issue
08:08:19 <sech1> you took this json from https://www.getmonero.org/resources/developer-guides/daemon-rpc.html#get_block_header_by_height probably, and it shows curl as an example
08:08:21 <Pascal123> thank you very much
08:08:23 <sech1> curl does HTTP requests
08:08:41 <Pascal123> i did not know, sech. thank you
08:10:09 <sech1> I don't know much about C#, but it should have some standard way to send HTTP POST requests
08:16:05 <Pascal123> yes
08:37:30 <Pascal123> hmm. which type of method does curl use ? post or get , i tried both, everytime is the response empty, or i get 404 error
08:39:09 <sech1> HTTP POST
08:39:19 <sech1> "-d" in curl command line makes it a POST request
08:39:26 <Pascal123> ok thx
08:40:08 <Pascal123> even with httppost i get 404 
08:43:07 <Pascal123> the daemon binds 127.0.0.1:18081,but i m not able to find it
08:43:51 <sech1> do you set URL = "/json_rpc" ?
08:44:28 <Pascal123> nooo, really i have to ?
08:44:49 <Pascal123> hmm, fck
08:44:53 <Pascal123> i willtry
08:45:33 <Pascal123> brb
08:47:55 <Pascal123> same Problem 404..Id = 3, Status = RanToCompletion, Method = "{null}", Result = "StatusCode: 404
08:48:55 <sech1> 404 means you use wrong url
08:49:56 <sech1> HTTP url must be "/json_rpc" in your request
08:50:14 <sech1> just use wireshark and compare what curl sends and what you send
08:50:54 <Pascal123> ok
08:51:23 <Pascal123> ttp://127.0.0.1:18081/json_rpc
08:51:29 <Pascal123> i use that
08:51:32 <Pascal123> http
08:51:37 <Pascal123> ....
08:52:15 <Pascal123> or it has to be http://127.0.0.1:18081/json_rpc/ ?
08:59:17 <sech1> url is "/json_rpc"
08:59:24 <sech1> you connect to 127.0.0.1, port 18081
08:59:45 <sech1> and then provide url "/json_rpc" and HTTP POST data will be the actual json request
09:00:21 <sech1> okay, I see C# HttpClient needs fully qualified url
09:00:30 <sech1> so yes, http://127.0.0.1:18081/json_rpc/
09:01:31 <sech1> https://stackoverflow.com/questions/6117101/posting-jsonobject-with-httpclient-from-web-api
09:03:16 <Pascal123> thank you sech
09:43:12 <Pascal123> interesting
09:43:29 <Pascal123> even curl is unable to reach daemon : https://pastebin.com/6X2hn9DW
09:58:12 <sech1> What's your monerod command line?
09:58:39 <sech1> actually, you did get a response from monerod
09:58:46 <sech1> "message": "Parse error"
09:59:00 <sech1> you're running on Windows, right?
09:59:03 <Pascal123> curl http://127.0.0.1:18081/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_block_header_by_height","params":{"height":912345}}' -H 'Content-Type: application/json'
09:59:05 <Pascal123> yes
09:59:31 <sech1> curl http://127.0.0.1:18081/json_rpc -d "{\"jsonrpc\":\"2.0\",\"id\":\"0\",\"method\":\"get_block_header_by_height\",\"params\":{\"height\":912345}}" -H "Content-Type: application/json"
09:59:36 <sech1> this is for Windows
09:59:49 <Pascal123> ohhh ok
10:00:38 <Pascal123> you are right
10:00:57 <Pascal123> daemon replies
10:01:01 <Pascal123> with curl
10:01:53 <Pascal123> hmm
10:21:12 <Pascal123> sech
10:21:25 <Pascal123> my code is working now, httcclient just sucks
10:21:48 <Pascal123> i m using now webclient and it works like a charm..Thank you !
10:40:49 <Pascal123> till next time :)
16:30:57 <Pascal123> hey
16:31:31 <Pascal123> i m studying monero daemon rpc documentation
16:32:09 <Pascal123> What is the pow hash please ? Is that the hash you have to run through randomx function ?
16:36:56 <Pascal123> And where is the merkle tree? is it possible to to request merkle tree from daemon ?
16:38:46 <rbrunner> Pascal123: You work with C#, right? Depending on what you want to do it would be much easier to use this library instead of firing off requests yourself: https://moneroecosystem.org/monero-csharp/
16:39:15 <Pascal123> hi rbrunner
16:39:26 <Pascal123> oh ok, i did not know this exists
16:40:20 <Pascal123> i would like to get the computed merkle tree from a block, is that possible ?
16:41:24 <rbrunner> Not sure, maybe that's not available over the RPC interface, and you would have to read blocks yourself, in the style of a block explorer ...
16:41:36 <Pascal123> im interested in writing a tiny pool software in c#
16:41:40 <rbrunner> You sure you need that?
16:41:51 <rbrunner> Ah, ok, then maybe, yes
16:41:54 <Pascal123> education purposes
16:42:30 <rbrunner> Yeah. Will certainly be interesting, but maybe quite a "steep learning curve". Maybe you have to look at existing pool software, in other languages
16:42:46 <Pascal123> but i dont know how to get the merkle root of a block..i dont want to port existing c++ code
16:42:53 <rbrunner> I guess much is not properly documented because so damn few people write pool software :)
16:43:05 <Pascal123> hmm okey...
16:43:35 <Pascal123> i would like to be able to generate mining blob manually
16:45:42 <sech1> there is not much documentation on it, apart from wikipedia/bitcoinwiki pages and the code itself
16:46:38 <Pascal123> but isnt the monero merkle different than the merkle tree of bitcoin?
16:47:06 <sech1> it uses different base hashing function
16:47:28 <Pascal123> but the structure is the same ?
16:47:49 <sech1> yes
16:48:02 <Pascal123> bitcoin uses sha256 and monero keccak, right ?
16:48:14 <Pascal123> why monero use keccak ?
16:48:47 <sech1> because it's more modern and secure than SHA-256
16:48:53 <Pascal123> ah ok
16:49:20 <sech1> keccak is basically SHA-3
16:49:31 <sech1> https://en.wikipedia.org/wiki/SHA-3
16:49:38 <Pascal123> well, i will try to implement it...thank you
16:50:45 <Pascal123> could i use sha3,too ? is the result the same ?
16:58:41 <sech1> No, parameters are a bit different
16:59:09 <sech1> Monero uses earlier version with different parameters because it came out in 2014, and SHA-3 was finalized later
17:04:26 <Pascal123> hmm ok
17:18:52 <selsta> .merge+ 8903 8904 8905 8908
17:18:52 <xmr-pr> Added
19:50:32 <Pascal123> One initial hash of merkle tree is computed by coinbase.. has monero a coinbase info, too or it is different? Coinbase = Coinb1 + ExtraNonce1 + ExtraNonce2 + Coinb2;
19:51:30 <Pascal123> if monero does not have a coinbase info, could i use first transaction as initialization hash ?
22:19:29 <Pascal123> good night guys