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Questions tagged [broadcast]

The tag has no usage guidance.

0
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1answer
41 views

Use UTXOs before transaction is signed/broadcasted

Suppose I have an address with a single UTXO. I want to create 100 transactions and sign/broadcast them all at once. Could I do the following: Create a transaction by hand (where change funds are ...
1
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1answer
34 views

How many transaction can I broadcast simultaneously?

Let's say I build two transactions, and in the second one I add an input which refers to an output of the first one. Then I broadcast simultaneously the two transactions. Now, I know that in Bitcoin ...
0
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1answer
63 views

How does a new block broadcast?

In a bitcoin network, when a miner discovers a new block, he needs to broadcast to other nodes, whether he broadcasts to only the nodes that have established 8 TCP connections or if he can broadcast ...
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0answers
26 views

Transaction broadcast mechanism

After initiation of transaction, transaction will remain in the memory pool of all peered nodes. How Transaction reach to the memory pool after receiving by the node? Do transaction broadcast to all ...
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0answers
98 views

Which light wallets actually connect to nodes?

AFAIK, most light wallets are not members of the P2P network, but rather connect to a centralized server run by the wallet developers, which broadcast users' transactions to the actual network. Which ...
3
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2answers
808 views

16: bad-txns-vin-empty. Code:-26

I am trying to push a raw transaction via BTC insight API, but I always get an error message: 16: bad-txns-vin-empty. Code:-26 Here is the raw transaction hex: ...
0
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1answer
36 views

Can a node exit the bitcoin network and return to his address and transactions?

I have read in Wikipedia that "Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will " in bitcoin network. what does it mean that a node can leave the ...
0
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3answers
246 views

How does bitcoin core choose which node to broadcast to? Any vulnerability?

I suppose the nodes would only listen and re-broadcast new block from and to a limited subset of other nodes (assuming the block is valid). How is this subset chosen? Does Bitcoin Core software ...
1
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2answers
352 views

How does a node get information from other nodes?

I think a node sometimes needs to get a information from other nodes. e.g. get set of UTXO. get main(longest) chain. I have two questions. How does a node tell other nodes these requests? Like ...
0
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1answer
160 views

Multisig (2 of 3) BCH, one signed before fork, one after

Right before the BCH fork a multisig (2 of 3) transaction was signed by the other party, and mine after the fork and successfully broadcasted (coinb.in), so got my BTC. Later I realized there might ...
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0answers
32 views

I sent a Bitcoin transaction to myself using Bitcoin Core and it is not broadcast? [duplicate]

I am not asking why the transaction is not confirmed, I am asking why it does not show as being broadcast even though it is in the log. I sent a Bitcoin transaction to myself some time ago using ...
0
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0answers
367 views

Error: mandatory-script-verify-flag-failed

I have created a raw transaction from myElectrum wallet, but when I try to broadcast it I get this error: mandatory-script-verify-flag-failed Why is this happening? The transaction is below: ...
1
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1answer
301 views

How to broadcast a new block

When i mine a new block on my pc, how can i broadcast it to other peers, making it included in the blockchain and getting my reward? Is there any API that provides a function like "sendBlock" or ...
1
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1answer
1k views

How to broadcast a transaction

I think this question is not only matter of bitcoin but also of every other crypto currency. My question is if I lets say have an app or wallet or website. And I want to send money to certain address,...
0
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1answer
155 views

Unable to broadcast multi-sig transaction that has been double signed

Having same issue as this question trying on both electrum wallet in terminal and via coinb.in/#broadcast. Unclear from existing answer how to resolve In terminal Electrum v 2.7.9; Debian system $ ...
1
vote
1answer
145 views

How is a transaction broadcasted?

Let's say UserA uses electrum, connected to ServerB, and hits the "Send" button to do a transaction. What happens? The transaction is sent to ServerB only or The transaction is sent from UserA to ...
1
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2answers
519 views

Consistency when multiple blocks are added

Let's say that 2 miners were able to add a block around the same time. However, when they broadcast their respective blocks to the network, other nodes receive these blocks in arbitrary order. The ...
2
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0answers
44 views

Broadcast a transaction, issue with Context missing from thread created by BitcoinJ

In this code i receive an already signed transaction in the form of a byte array and i would like to broadcast it to the Bitcoin network. override fun onHandleIntent(intent: Intent?) { org....
1
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1answer
68 views

What disadvantages are there when broadcasting a transaction via a 3rd party application?

Bitcoin marketplaces could transmit their transactions through e.g. blockchain.info, why aren't they? Do bitcoin marketplaces & selling services run their full node to broadcast a transaction? ...
2
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2answers
606 views

How to receive newly broadcasted transactions immediately with bitcoin-core RPC?

With getrawmempool it gets me txids, however it just dumps the whole mempool on me. This isn't convenient if I want to quickly detect new transactions. Is it possible to only get newly broadcasted ...
3
votes
1answer
700 views

Error validating transaction using BLOCKCYPHER

I recently followed the steps on the answer by StephenM347 to the following problem: Cannot access my bitcoins because my wallet is still synchronising. What can I do to spend them immediately? ...
0
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1answer
184 views

Working with the Bitcoin network protocol

I am very interested in the p2p protocol used by Bitcoin clients. There are some excellent answers here that describe the way clients connect to the network. How does the bitcoin client determine the ...
4
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2answers
2k views

Broadcast a signed transaction

I sent money from 4 inputs to 2 outputs, one of which I don't control. The transaction's fee is too small (didn't change my settings and the transaction fees got a lot higher, recently) and will not ...
3
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0answers
100 views

My transactions regularly have to be rebroadcast. Why? How can I fix it? [closed]

I run a small Bitcoin related service in which bitcoins get sent out my users regularly throughout each day via my bitcoind node. Once or twice a week some of the transactions don't seem to be ...
3
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1answer
202 views

How do nodes rebroacast transactions

When a bitcoin node receive a new transaction, it rebroadcast it and stores it in its mempool. If the transaction gets into a block, then it is removed from the node's mempool. But what happen when ...
3
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2answers
945 views

Transact Bitcoin with no internet

An issue I find when I travel is that I would like to visit a cafe that accepts Bitcoin but because I am abroad I usually don't have an internet connection on my phone. I could use WiFi but what is ...
1
vote
1answer
253 views

Why aren't block solutions sent to a multicast address?

In computer networking, multicast (one-to-many or many-to-many distribution) is group communication where information is addressed to a group of destination computers simultaneously. I think the ...
4
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2answers
1k views

How do you broadcast a transaction programatically?

What is the best way to broadcast a transaction to the network programatically? I know that blockchain.info has /pushtx but I'm pretty sure it rejects XHR requests from external sources because of ...
1
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1answer
249 views

Block Broadcasting - Unsolicited Block Push

Can someone, please, direct me to the source code section(s) relevant for an Unsolicited Block Push as described in the Bitcoin Developer Guide? I've been going through main.cpp and searched for the ...
2
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1answer
177 views

Best Way to Get Latest Transactions

I'm trying to write a node that listens all the bitcoin transactions in real time. I'm considering two ways of doing this: The first one is to check mempools of other nodes periodically and the second ...
3
votes
1answer
1k views

How are transactions and blocks relayed?

What is the protocol for relaying transactions and/or blocks in bitcoin? I realize that nodes never relay a transactions and blocks with a variety of properties (e.g., invalid transactions). This ...
1
vote
1answer
231 views

Why are Transactions sending out randomly?

I see in the sourcecode this two lines: // Do this infrequently and randomly to avoid giving away // that these are our transactions. in the method ResendWalletTransactions. Why is this necessary? ...
5
votes
2answers
20k views

Why did my Coinbase transaction take 4.5 hours to get in a block?

Why did this transaction take so long to be put in a block? I initiated a 7 BTC transfer at 6:13 PM Eastern Time from Coinbase to an external address in an over the counter transaction today. It was ...
9
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3answers
2k views

Can an unconfirmed transaction that only Blockchain.info shows be manually re-broadcast?

Blockchain.info shows a transaction that was created by Blockchain.info/wallet but for whatever reason the transaction didn't confirm right away and appears to not be getting re-broadcast (perhaps ...