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How to prove to someone that an Bitcoin address (or UTXO) belongs to you?
Are there (ZK) methods to prove it?
Does anyone know?
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According to the example of the Providing a deposit in the bitcoin wiki, https://en.bitcoin.it/wiki/Contract#Example_1:_Providing_a_depositI found that even if the user is malicious, the malicious user can't be punished (no loss of money). Obviously, if the user turns out to be abusive (i.e., a spammer), the website will not allow an early close of the contract. Are there contract methods that can punish the malicious user? |
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Blind signatures have various applications and as you may have already figured out, employing them in bitcoin is an application side issue and has nothing to do with full nodes and verifcation process. For bitcoin ECDSA 256k1 encryption algorithm various blinding functions (f) has been proposed for instance: https://eprint.iacr.org/2018/660.pdfI've no further information about the extents this technique is used in bitcoin ecosystem but the point is bitcoin nodes and their script processing engine are absolutely neutral in this regard and don't need to improve for supporting it. Ok , Thanks! Does Group signature schemes that are compatible with the Elliptic Curve Digital Signature Algorithm (ECDSA)existing？ Are there papers about Group signature schemes are compatible with ECDSA? |
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Had anyone read this paper? Paper Link: https://eprint.iacr.org/2016/056.pdf In this paper, what script is used to verify the blind sign? I didn't understand. In the seventh page of this paper, the transaction T f needs to meet two conditions. 1. T[sub]f[/sub] is signed by I and contains a valid blind signature /theta on sn(overlines), or
2. T[sub]f[/sub] is signed by A and the time window tw has expired. I know that Condition 2 uses OP_EQUALVERIFY OP_CHECKSIG and timelock to achieve. But how is Condition 1 implemented? Can someone teach me? |
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How much BTC(at least) does it cost to build a transaction that only contains OP_RETURN(OUTPUT)?
Is there any information about this?
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OS:Windows 10
Bitcoin Core Version:0.16.0
How run multiple nodes in regtest/testnet mode on a single machine?
I want to test.
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Here's the link to main thread: New info escalates importance: upgrading to 0.16.3 is REQUIRED
Better upgrade to 0.17. All right. Thanks for your suggestion! |
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As usual, please post your debug.log, bitcoin.conf/startup parameter and getnetworkinfo result so we can diagnose the problem.
My guess are :
1. Corrupted downloaded block / chainstate
2. Bad configuration on your desktop / router firewall
3. Unstable/very slow connection
my latest debug.log 2018-10-11 03:47:59 GUI: Platform customization: "windows"
2018-10-11 03:47:59 GUI: PaymentServer::LoadRootCAs: Loaded 37 root certificates
2018-10-11 03:48:10 Loading addresses from DNS seeds (could take a while)
2018-10-11 03:48:10 0 addresses found from DNS seeds
2018-10-11 03:48:10 dnsseed thread exit
2018-10-11 04:19:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 1890 seconds ago)
2018-10-11 04:30:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 2520 seconds ago)
2018-10-11 04:40:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 3150 seconds ago)
2018-10-11 04:51:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 3780 seconds ago)
2018-10-11 05:01:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 4410 seconds ago)
2018-10-11 05:12:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 5040 seconds ago)
2018-10-11 05:22:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 5670 seconds ago)
2018-10-11 05:33:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 6300 seconds ago)
2018-10-11 05:43:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 6930 seconds ago)
2018-10-11 05:54:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 7560 seconds ago)
2018-10-11 06:04:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 8190 seconds ago)
2018-10-11 06:15:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 8820 seconds ago)
2018-10-11 06:25:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 9450 seconds ago)
2018-10-11 06:36:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 10080 seconds ago)
2018-10-11 06:46:51 Potential stale tip detected, will try using extra outbound peer (last tip update: 10710 seconds ago)
2018-10-11 06:47:13 GUI: OpenType support missing for script 12
2018-10-11 06:47:13 GUI: OpenType support missing for script 12
2018-10-11 06:47:13 GUI: OpenType support missing for script 12
2018-10-11 06:47:13 GUI: OpenType support missing for script 12
2018-10-11 06:47:13 GUI: OpenType support missing for script 11
2018-10-11 06:47:13 GUI: OpenType support missing for script 11
2018-10-11 06:47:13 GUI: OpenType support missing for script 11
2018-10-11 06:47:13 GUI: OpenType support missing for script 32
2018-10-11 06:47:13 GUI: OpenType support missing for script 32
2018-10-11 06:47:13 GUI: OpenType support missing for script 32
2018-10-11 06:47:13 GUI: OpenType support missing for script 32
2018-10-11 06:47:13 GUI: OpenType support missing for script 19
2018-10-11 06:47:13 GUI: OpenType support missing for script 19
2018-10-11 06:47:13 GUI: OpenType support missing for script 19
2018-10-11 06:47:13 GUI: OpenType support missing for script 19
2018-10-11 06:47:13 GUI: OpenType support missing for script 20
2018-10-11 06:47:13 GUI: OpenType support missing for script 20
2018-10-11 06:47:13 GUI: OpenType support missing for script 20
2018-10-11 06:47:13 GUI: OpenType support missing for script 20
2018-10-11 06:47:13 GUI: OpenType support missing for script 16
2018-10-11 06:47:13 GUI: OpenType support missing for script 16
2018-10-11 06:47:13 GUI: OpenType support missing for script 16
2018-10-11 06:47:13 GUI: OpenType support missing for script 17
2018-10-11 06:47:13 GUI: OpenType support missing for script 17
2018-10-11 06:47:13 GUI: OpenType support missing for script 17
2018-10-11 06:47:13 GUI: OpenType support missing for script 17
2018-10-11 06:57:21 Potential stale tip detected, will try using extra outbound peer (last tip update: 11340 seconds ago) bitcoin.conf(The attribute values of rpcuser and rpcpassword were removed) testnet=1
server=1
rpcuser=
rpcpassword=
prune=2000
#Tor Connect
proxy = 127.0.0.1:9050
listen = 1
bind = 127.0.0.1 The network is normal |
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I started bitcoin core for sync block yesterday, but it always stays in block 1435525 after several hours.
And Bitcoin Core shows that 0 active connection with Bitcoin network.
Bitcoin Core Version: v0.16.0(x64)
Why does Bitcoin Core(testnet) unable to connect to bitcoin network?
Is it possible that bitcoin core has been updated to 17.0 a few day ago? Or other reasons?
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Hi, I send you a PM with the private key to this address mvwXQY1FAm9BsVdUZ7YaZhpCBnJwT17D5v IF you do not move them in a week or so, I might give them to a faucet or someone else... Have fun  Thank you very much! I have received your personal message!  |
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Ok! Should i modify the original code instead of getting the one test bitcoin?
I am assuming you want to build something on top of that (at least that's the most obvious reason for forking the code and running it yourself). So you will have to read and understand the code anyway. Finding and changing a variable seems to be a solid first step. I'd suggest to simply modify the code according to your requirements. Emm ! All right！ Your assumption is exactly right. Thanks for your sincere and valuable suggestion！ Next I will work hard to read and understand the code. |
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This faucet still has >400 coins... and you can get a max of just over 0.8, so it fits your bill:http://bitcoinfaucet.uo1.net/
Or... just set your rig to point to testnet pool and mine some yourself? Shouldn't take more than a few minutes, assuming you already mine Bitcoin.
P.S. Your error message doesn't seem like you're trying to access a faucet at all... "Not enough funds in the wallet to tumble" suggests you're trying to use a mixing/tumbling service?
emmm. http://bitcoinfaucet.uo1.net/ shows that current wallet balance is 414.35778642.But i can get up to 0.08287000. ( 0.08<0.8 ) Besides i only have a pc(cpu). This does not seem to be suitable for mining. P.S. Yes, error message comes from the tumbling service inseated of faucet. |
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Do you have unused test bitcoins? IF yes. Could you give me some coins?
Please send a little amount of (approximately 0.8B) to 2N464wccQ57yAzY61Gc9pPPYfYxMqQ2nZUt
I need test bitcoins for development.But some testnet faucet maybe is wrong and I can't get test bitcoins.
THX!!
Client info: Not enough funds in the wallet to tumble. Missing about 0.62188671. Denomination is 1.00000000.
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