Questions tagged [transactions]

This tag should be used for questions related to transactions. Transactions are signed messages regarding the transfer or generation of bitcoins. They are broadcast throughout the Bitcoin network and, if accepted, integrated in the blockchain.

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432 views

blockchain account has watch onl on i

blockchain have been zero help. I need to know how I can get a private key to release my funds I transferred funds from the exchange blockchain lost it. I had to find it myself I transferred it to ...
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1answer
917 views

Is there any way for me to recover or reclaim a confirmed but unspent transaction that was sent to the wrong address?

I sent money to the wrong address. I am not a developer and I only understand the blockchain in its most general terms.....but I use bitcoin everyday so I have a working knowledge of it. It's hard for ...
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1answer
137 views

How would one go about acquiring the HashofThingtoSign from this old transaction?

How would one go about acquiring the HashofThingToSign that is used in the "Signature Generation" equation for this example transaction such that it could easily also be applied to any other ...
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495 views

Can bitcoin system be modded to work without internet

Is it possible for bitcoins to manifest itself as concrete currency so that it can be used as paper money ?
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2answers
1k views

how to do address callbacks?

I'm building a webapp that needs to update account info and send a message when an account's address gets a deposit, and/or confirm withdrawals. I'm not sure what the best way to do this is. Would ...
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1answer
614 views

Possibly sent Bitcoin to wrong address

Almost a week ago I sent .05 BTC from my coinbase account to what I thought was my jaxx address, but I haven't received it. The transaction (here) says that some of the output of the transaction was ...
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1answer
119 views

Restrict the Bitcoin usage only during a particular period

I would like to know if its possible to use a Bitcoin at present in the following scenario. When I send a Bitcoin to an another user,I set certain parameters on the Bitcoin, like it can only be used ...
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1answer
3k views

Solving a block and verification of transactions [duplicate]

My understanding of mining is that the reason an award of Bitcoin comes along with the solving of the current block is to give people incentive to actually try to solve the block. My understanding is ...
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0answers
309 views

Unable to broadcast native P2WPKH (SegWit) TX; malformed, but how?

I'm trying to add SegWit functionality to my app but am running into trouble building my transaction. I've read BIP143 so many times I virtually have it memorized, and I've followed it to the letter. ...
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1answer
166 views

Needing a Private Key in order to receive profits in Blockchain Wallet

I recently made an investment with Forexbitoptions and have made some profits. They have supposedly sent these profits to my Blockchain wallet but say it's not going through as I need a Private key ...
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2answers
75 views

How to get total transactions on the network with RPC

I have seen no concrete answer to this question anywhere. I assume it is possible to get the total number of successful transactions on the bitcoin network using bitcoin-cli command because most ...
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1answer
58 views

Batching transactions to safe on fees

I have some bitcoin spread across multiple addresses. I would like to move these to different addresses. I've heard about batching and was wondering if it is possible to batch the transaction to ...
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1answer
344 views

How can I specify multiple txids in createrawtransaction function?

I saw we can specify multiple txids, but I've never seen such a case. So I wanna make it sure. Thanks
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1answer
159 views

Possible to check who signed the transaction in a multi-sig transaction case?

Say you have a multi-sig tx that originated from a 2-of-3 P2SH address. Is it possible to say who signed the transaction? i.e. you can get access to the redeem script once the tx is broadcasted, and ...
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4answers
1k views

Monitor non-wallet bitcoin addresses for new transactions

This is usual checkout functionality. Show address to the user and needs to monitor it for new transaction during n minutes. Addresses are not unique for each payment. Optional:it would be good to ...
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1answer
395 views

After creation, what I have to do with a coinbase transaction?

I have create a coinbase transaction successfully with the command: createrawtransaction '[{"txid":"0000000000000000000000000000000000000000000000000000000000000000","vout":0}]' '{"...
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1answer
134 views

Extract output address from raw script in bitcoin protocol

I'm working on bitcoin protocol and exactly i want to extract raw script from output script to gain address from tx messages. for common scripts, like scripts start with 0x76(means OP_DUP), we can ...
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2answers
97 views

Issue transaction without being online

Is there some way in which User A who could load a transaction onto the block chain and if some other User B who is willing to pay User A, without User A being online could release the loaded ...
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2answers
125 views

i lost access to my bitcoin [closed]

I did not have any idea about bitcoin but I wanted to get in, I met this guy who knew about it on facebook asked him if he could help. he sent me the link on blockchain to signup showed me how to buy ...
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1answer
144 views

SPV clients querying the full node

Is there a way currently where an SPV client can send a TxID to a full node which is present in the UTXO set of the full node and have the full node not scan its entire blockchain to fetch the ...
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1answer
75 views

How to efficiently find if in-address in transaction is valid and has required amount of data?

A transaction has in-bitcoin address. Transaction tells to transfer that address (in fraction or whole) to another address. Since the source of truth is block-chain, how does miner know that in-...
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1answer
49 views

What is stopping me from modifying the mempool of my node (may it be PoS or PoW)?

I have been trying to wrap my head around some core concepts of how a blockchain works and something has been bothering me for a while. Let's consider a case where I am running a full node of a ...
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1answer
236 views

I transferred BTC from mtgox and they have disappeared - What should/can I do? [duplicate]

I sent 3 btc from mtgox to cavirtex. The address used is correct and I was given a transaciton ID by mtgox. Yet blockchain.info shows no record of a transaction and 3 btc are missing. I have written ...
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1answer
746 views

How the arbitrage works?

How the arbitrage works, Is transaction fee is included for calculating arbitrage across exchanges, cryptocoincharts seems to render incorrect values, Any other arbitrage available at open source? ...
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1answer
324 views

Can a new wallet receive money that was sent to it before the wallet was created? [duplicate]

Possible Duplicate: What would happen if two public keys had the same Base58 hash? A follow up from What happens if I mistype the address when making a payment? Suppose I accidentally (or ...

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