All Questions

1
vote
1answer
24 views

Lightning Network : Pay a Bolt11 Invoice in multiple Payments

Is there a way to pay one Bolt 11 Invoice in multiple payments with Lightning Network? For instance this invoice total amount to pay is 5000 satoshi: ...
-2
votes
0answers
20 views

How often do you use mobile application for trading by cryptocurrency? [on hold]

I am interested in topic like how often do you use mobile application to trade by cryptocurrency or it is much more convenient to trade via personal computer? What do you think, guys?
1
vote
2answers
33 views

What would be the consequence of a constant network difficulty?

Say the difficulty of the bitcoin network was not variable. Then regardless of the network hash-rate, the mining puzzle will be the same. What would that mean in terms of the security and economics of ...
0
votes
0answers
14 views

Access Kucoin OHLC data from API?

I need to access kucoin Open-high-low-close (OHLC) data from Kucoin API. Looking in https://docs.kucoin.com/#get-trade-histories, I deduced that to access OHLC data (for instance BTC versus USDT, ...
0
votes
2answers
38 views

BOLT #7: Can receiving node requirements in channel_update message give rise to malicious attacks?

Following requirements have been placed on the receiving nodes related to the channel_update message in BOLT #7. if timestamp is NOT greater than that of the last-received channel_update for ...
-1
votes
0answers
20 views

Is it safe to trade bitcoin on Binance now ? After the hack [on hold]

After binance exchange being the most secured one gets hacked.. can we still trust the exchange ? cause the information regarding the hack was too shady and not transparent
0
votes
1answer
12 views

Centos electrum public-key import

I have several bitcoin addresses (together with corresponding public keys) from Electrum wallet I've used previously. I moved to another CentOS server and now I need to import this addresses back. But ...
0
votes
0answers
12 views

No JSON object could be decoded; Failed to subscribe; IO errors - 1, tolerance 2

I´m using GUIminer and Bitcoincore. When I start to mining I got that message, how can I fixed it?
0
votes
0answers
19 views

Bitcoin script execution unsuccessful

I'm working my way through "Mastering Bitcoin". The author made a transaction: 0627052b6f28912f2703066a912ea577f2ce4da4caa5a5fbd8a57286c345c2f2 https://www.blockchain.com/btc/tx/...
0
votes
1answer
14 views

looking for faucet API so i could use it for tests - Automated faucet

i would like to make some tests on test net, the issue is every time i have insufficient fund in my wallet i need to find a faucet and manually add funds. i would like to create an automatic faucet ...
0
votes
1answer
19 views

What is the best Lightning implementation to obtain the network graph?

I want to obtain a fresh snapshot of the Lightning network from my own node. So far I've experimented with Eclair, its API calls allnodes, allchannels, and allupdates give me the information in the ...
1
vote
1answer
16 views

Lightning network: which update messages are replayed?

If I understand correctly, after a new node connects to a peer in the Lightning network, it receives all past channel announcement / update messages for currently open channels to recreate a local ...
0
votes
0answers
15 views

Import private key from coldstorage wallet.dat to hotwallet wallet.dat?

What is the recommended procedure to make coins from coldstorage accessible. Assume latest wallet.dat v18 and prv1/pub1 key pair (like shown in dumpwallet). Now i have a hotwallet and would like to ...
0
votes
0answers
11 views

Empty reply from server v0.18.0

From the wallet comes an empty response to my request. Logs 2019-06-12T06: 46: 15Z sending inv (37 bytes) peer = 11 2019-06-12T06: 46: 15Z received: addr (31 bytes) peer = 27 2019-06-12T06: 46: 15Z ...
0
votes
1answer
20 views

Where can I download a snapshot of the Lightning network topology?

I want to study the properties of the Lightning network graph. Is there a way to obtain a reasonably fresh snapshot containing nodes and channels (say, in JSON format)? There are multiple explorers ...
0
votes
1answer
22 views

Is a bitcoin UTXO divisible?

In this video Andreas Antonopolous says an output is indivisible and therefore if a transaction smaller than the output is done, the rest is used as change and returned to your different address of ...
1
vote
0answers
8 views

Switching between pruned and non-pruned blocksdir ok?

Is it ok to swap the nodes blocksdir upon restart without corrupting sth. cache etc.. I have two blocksdir: one locally pruned blocks, the other external with all blocks in blocks on usb drive. Id ...
0
votes
0answers
12 views

Term meaning query

I am only new to Bitcoin and I would like to know what a "Green address verification" is, I have an electrum wallet ver 3.3.6 and I think it is used for faster transactions but I am not sure any info. ...
0
votes
1answer
38 views

invoice amount is 1200000 but I paid 1201035. What is 1035?

I paid the invoice and then I noticed I paid more than the amount of the invoice. 1201035 (I actually paid) - 1200000 (the amount of the invoice) = 1035 (?) My questions are.. What is 1035 satoshi? ...
0
votes
0answers
11 views

Blockchain.info block explorer help

Using the python blockchain.info client When I attempt to get blocks and print the result I get this output: <blockchain.blockexplorer.SimpleBlock object at 0x103c6b208> How can I access the ...
0
votes
1answer
33 views

+Accidently sent my BCH from my ledger nano S to a BTC address in Coinbase how can i get it back?

+Accidently sent my BCH from my ledger nano S to a BTC address in Coinbase and it went thru but never got to my Coinbase account, how can i get it back?
0
votes
0answers
15 views

How do I get started [duplicate]

How can I mine cryptocurrency and is it possible to mine it with termux? Or should I use an app? I don't have a computer.
1
vote
1answer
79 views
+100

Recovery of a corrupted wallet

I have a very old wallet.dat that I've put into my .bitcoin folder. When trying to run bitcoind, the service stops giving the following error 2019-06-11T18:14:02Z Using wallet directory /home/nom/....
1
vote
1answer
20 views

Consistenly getting Block magic mismatch error?

I have bitcoind running (0.18) in my ubuntu machine and it keeps shutting down due after getting this error: ERROR: ReadRawBlockFromDisk: Block magic mismatch for CDiskBlockPos(nFile=0, nPos=68821043)...
0
votes
0answers
31 views

spend founds from p2wsh address,non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation) (code 64)

i want spent coin from p2wsh address on btc testnet3 network, i use bitcoinj 0.15.2 build transaction and sign it, use 2/3 multiSig when i send raw transaction by bitcoin core 0.17.0 command line by ...
-1
votes
0answers
19 views

How to code simple CPU pool miner?

I want to code own CPU pool miner but I can't find any example. Does someone knows about basic, simple CPU pool miner ? I found some examples but none of them was pool miner. I want to use pool ...
4
votes
1answer
32 views

Why doesn't Lightning have DNS bootstrapping?

Bitcoin uses a DNS-based bootstrapping mechanism to help new nodes find peers. As far as I'm aware, Lightning doesn't have such mechanism, and new users are supposed to just search for node addresses ...
1
vote
0answers
21 views

Error pay invoice. Ran out of routes to try after 2 attempts: see paystatus

I wanted to send some satoshis on testnet lightning network but I got "Ran out of routes to try after 2 attempts: see paystatus" error. I have a channel with 02...48 (1ML.com node ALPHA) and created ...
0
votes
1answer
27 views

How to manually sign a transaction with multiple inputs and multiple outputs?

I'm developing transaction constructor, but i faced several problems. To some of which i found answer in How to sign a transaction with multiple inputs?, for the rest i'll try to explain: When we ...
0
votes
1answer
30 views

How to write OP_CHECKMULTISIG for the following 1-of-2 multisig P2SH script

OP_IF OP_SHA256 <hash of secret> OP_EQUALVERIFY <pubKey of swap> OP_CHECKSIG OP_ELSE <relative locktime> OP_CHECKSEQUENCEVERIFY OP_DROP <pubKey of refund> ...
0
votes
1answer
13 views

From unsigned to psbt transaction

Recently, I happened to see in a codebase something like the following snippet to convert a standard transaction into a psbt format: txHex = "...
0
votes
1answer
41 views

Procedure for Deriving Payment Addresses

I'm trying to understand the HD wallet payment derivation procedure, so assume: Ownership of a Bitcoin HD Wallet on an external smart device Exported account level extended public key (xpub....) from ...
0
votes
0answers
22 views

Invalid -rpcallowip subnet specification: *.Valid are a single IP, a network/netmask or a network/CIDR

I'm new and all this of bitcoin, but I'm trying… I downloaded BitcoinCore and GUIminer, I made the configuration for solo minning (I created my username and password, I set Bitcoin client path) but ...
1
vote
1answer
30 views

What is transaction “finality”?

bitcoind IsFinalTx() as seen here checks the properties of a transaction in this order: Is nLockTime exactly 0? That's final. return. If it's not 0, is it below the current block height / time? If so,...
1
vote
1answer
33 views

How exactly do I decode the block file info in leveldb?

Base on the links https://github.com/bitcoin/bitcoin/blob/fcbc8bfa6d10cac4f16699d6e6e68fb6eb98acd0/src/main.h#L392 and What are the keys used in the blockchain levelDB (ie what are the key:value ...
0
votes
0answers
12 views

Blockchain Payment Has Been Unconfirmed Please Help [duplicate]

Could someone please help me with this trancaction, i sent it via bitmex and not sure how to use fee bump. https://www.blockchain.com/btc/tx/...
0
votes
1answer
18 views

EstimateSmartFee returning same amount, regardless of conf_target

Running 18.0 on Testnet, fully synced at 1541869 blocks. bitcoin-cli estimatesmartfee 10 { "feerate": 0.00001014, "blocks": 10 } bitcoin-cli estimatesmartfee 50 { "feerate": 0.00001014, "...
0
votes
1answer
9 views

BlockUntilSyncedToCurrentChain: txindex is catching up on block notifications

The message "BlockUntilSyncedToCurrentChain: txindex is catching up on block notifications" is appearing regularly in my debug.log. When these messages appear, I can be sure that lnd will not be able ...
1
vote
1answer
26 views

Why a specific bitcoin value of a tx message appears in source IP address and then comes to same IP address as the destination address?

Sometime back, I created two wallets on two distinct cellphones. I sent a specific bitcoin value (A bitcoin) from one cellphone to another one. During this process, I captured the entire traffic. ...
0
votes
1answer
15 views

Read an XPUB list of transactions to Python using my own node

Anyone familiar with a Python library that can get a list of all transactions under an XPUB but by connecting to a Bitcoin node through RPC?
-3
votes
0answers
33 views

How to make cryptocurrency transactions using a virtual card? [closed]

I recently gained interest in cryptocurrencies and before getting actively involved, I started to study about the issue. The need to launch the first cryptocurrency, i.e. bitcoin, was to be able to ...
1
vote
2answers
33 views

How to check the balance of the list of 1 million Bitcoin Addresses?

How to check the balance of the list of 1 million Bitcoin Addresses? Is there such a program?
3
votes
1answer
40 views

How many nodes is too many?

Has anyone done the math on this? For example, if we had 10’s of millions of nodes all connecting to 8 peers would there be some latency issues in propagating blocks across the network in the 10 ...
-2
votes
0answers
20 views

Multiple sources

Hi can someone help me I have multiple wallets and transactions that I'm not sure how to confirm them so I get the Bitcoin ,dogecoin. Please help
0
votes
0answers
4 views

how? blockchain fund transfer error .. missing funds [closed]

How is this possible on the blockchain? Sent 275.80 ether from Binance, transfer confirmed, to another exchange, block chain confirmed. Funds deposited were 0.04 ether, not 275.80 !! This was 3 weeks ...
-1
votes
0answers
24 views

Where to buy bitcoin [closed]

Where can I buy bitcoin in iran because I wanna buy urgently and I cant find a place online to buy bitcoin and I need it
2
votes
1answer
19 views

How to parse values in block index leveldb?

So I'm trying to read the block files with Python. From this link, What are the keys used in the blockchain levelDB (ie what are the key:value pairs)?, it tells you how to access the files with ...
0
votes
0answers
27 views

why a specific transaction value and it's output address which is sent from a specific IP address, returns from another address to that IP address? [duplicate]

I wrote a code to extract bitcoin output addresses and their values from TX messages of the bitcoin protocol. to test it, I prepare this scenario: first I send a specific bitcoin value(for example A ...
0
votes
1answer
35 views

Does Bitcoin Core still use “Bitcoin seed” in addition to a seed like stated in BIP 32?

In BIP 32 it's stated that a Master Private key is generated by hashing the concatenation of a random seed and the string "Bitcoin seed". And is like so in the example implementations. But I couldn't ...
0
votes
0answers
30 views

Bitcoin doesn't create tor hidden service

Configuring Bitcoin 0.18 node in a brand new Whonix VM on latest Qubes R4.0. Trying to make Bitcoin create a hidden tor service following method 1 here. Also followed what was applicable here. ...

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