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1  Bitcoin / Development & Technical Discussion / Re: What`s the deal with the testnet? on: September 10, 2018, 04:13:27 PM
Thanks, man! I realized something was fishy and I do manage to get txs through if i set the fee high enough.

I would have though that if this was a legitimate stress test or some kind of experiment the people behind it would have made some announcement. you said that this has been going on for a month, i suspect that this is some kind of spam attack. on the other hand, for testing purposes i could also use regtest net.

I also noticed a lot of outputs that are created are spent inside the same block (this is probably part of the attack logic). But i didn`t know this is possible (seeing those tx it clearly is). Can you confirm this?

Testnet3 is being flooded by 1 or a handful of individuals, probably not even for malicious purposes but to stress test the network. somebody with a few thousand coins can tie up testnet for a long time. its been happening for about a month, a lot of testnet services shut down, primarily the faucets.

looks like it will end eventually, or a new testnet will be released. in the mean time, use high fees and WAIT. ive been having a hell of a time finding coins and being able to get transactions to be accepted in a block, but not much anybody can do aside from using super high tx fees so you can get accepted in a block .
2  Bitcoin / Development & Technical Discussion / What`s the deal with the testnet? on: August 31, 2018, 10:40:45 AM
I have started testing stuff on the testnet for a week now and I have this question:

Wtf is bloating up the blocks? I see most blocks being full, up to 1mb, and bloated up by a chain of txs that are spent in the same block: as soon as one output is created it is spent in the next tx and so one in a long chain of txs. What is this?

Also what advice would you guys give to a newcomer when working with the testnet? (i have worked with ethereum extensively before and i know how btc works but i haven`t touched the tools much before; atm i am experimenting with bitcoind and bitcoinjs-lib)
3  Bitcoin / Bitcoin Technical Support / Re: bitpay bitcore node & node libs on: August 16, 2018, 10:07:32 AM
My suspicion is that Bitpay is still using bitcore internally but they`re keeping the code private. even if the original team left they could have had new people joining the team and continuing development. Looking at it seems that the bitcore nodes count has been decreasing this year and I suspect this is because users outside of Bitpay move to other solutions and since the node is not maintained anymore there are no new users.

@lautaro.dragan I think I might have a solution although i`m not sure how well it scales. I am using rpc importaddress with bitcoind, this adds the address to the wallet to 'watch' and parses the blockchain for transactions associated with it. this will take a while.. but after that you can query bitcoind with rpc listtransactions and the account name under which you imported the address. As i said I don`t know how well this scales: scanning the blockchain for each address can take minutes depending on the machines (but bitcoind is responsive) and I imagine this adds to the wallet db so this will start using storage if a lot of addresses are imported.

I still have to test some things but it seems like a workable solution for querying txs by address (not sure about utxo yet). The alternative would be a fully fledged explorer like bitcore/insight but this soaks up large amounts of work and people will keep these solutions private most of the time.. it`s a shame bitcore is not maintained anymore
4  Bitcoin / Bitcoin Technical Support / bitpay bitcore node & node libs on: August 14, 2018, 05:55:22 PM
Is the Bitpay bitcore node&libs still supported? They look pretty much dead on github although I could start and sync mainnet&testnet nodes. Does anyone know why did they abandon the project? (possibly by keeping following versions private)

Also does anyone know of a node implementation that has similar features to bitcore, i.e. I am most interested in being able to query it for all the transactions to or from an address.
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