Questions tagged [getmemorypool]

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Unconfirmed transaction in memory pool [duplicate]

In February 2021, I sent some bitcoin from bitcoin core account. I choose a low transaction fee. The transaction is down as 'unconfirmed, memory pool'. The bitcoin has not appeared at the receiving ...
John Halstead's user avatar
2 votes
0 answers
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Does the mempool size as reported by Blockchain.com include the size of txs only?

Does the mempool size as reported by (for instance Blockchain.com) include the sum of the 'size' of transactions only? Or does it also include the overhead (due to indexes, allocation overhead, ...
Hina's user avatar
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1 answer
127 views

How to recognize dependent transactions sitting in the mempool?

I am trying to find out the relation among dependent transactions in the mempool. I have already used the "depends" field and tracked the transaction ids to go through. But I still can not ...
Motiv's user avatar
  • 109
1 vote
1 answer
390 views

How to implement getrawmempool?

I’m trying to get all transaction ids in the memory pool as json array. I just finish downloading bitcoin core and do now know where to begin. Any help would be appreciated!!
Xi Zheng's user avatar
6 votes
1 answer
452 views

How long are orphaned or stale blocks kept in bitcoin core nodes memory?

If there was a chain reorg, for example: Blockchain: 0a---1a---2a---3a becomes... 0a---1a---2b---3b How long are blocks 2b and 3b kept in memory on the node? If I query the node for block 2b ...
Malone's user avatar
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1 vote
1 answer
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Is there a way to get the memory pool in order of newest first?

I'm trying to list out the results of getrawmempool by newest transactions first. Here's what I've got: getrawmempool returns the memory pool in order of transaction hash, so I'm using PHP to sort ...
inersha's user avatar
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1 vote
1 answer
99 views

Bitcoin core does not have all unconfirmed transactions

I am running bitcoinqt and checking for new transaction for payments I made using getrawmempool. Payments were made NOT from/to the mentioned bitcoinqt wallet address. As I see some my unconfirmed ...
Alex's user avatar
  • 183
4 votes
2 answers
783 views

bitcoind getrawmempool without downloading the full blockchain

I'm running bitcoind from a small virtual machine on digitialocean. I'm interested only in looking at the new transactions in bitcoind getrawmempool Is there a way to get these transactions without ...
Yada's user avatar
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3 votes
1 answer
306 views

What did getmemorypool do?

To speak the truth, I don't really know what getmemorypool did before, I'm having a hard time trying to figure out. And why is getmemorypool obsolete? What replaced it for internal work generation? ...
rafael.js's user avatar
  • 153
1 vote
1 answer
156 views

Getmemorypool responses

What is the expected response for a getmemorypool RPC call to a standard client, when calling it with data field? I'm mainly interested in such factors as: Will the call return true if a sent block ...
ThePiachu's user avatar
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3 votes
2 answers
332 views

Getmemorypool example?

I'm currently trying to figure out how to properly use Getmemorypool for mining and I'm having some problems with it. Are there any examples provided somewhere on how to properly call that RPC with ...
ThePiachu's user avatar
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1 vote
2 answers
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Proper getmemorypool data endianness?

As there are a couple endiannesses used by Bitcoin, what is the proper way to encode the data parameter for a getmemorypool JSON API call?
ThePiachu's user avatar
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4 votes
2 answers
191 views

How soon does bitcoind incorporate locally solved blocks into its 'getwork' output?

If one sends a solved block to bitcoind server using getmemorypool or getwork, and right after that requests a new block using the same API call, what will the server respond with? Assuming the data ...
ThePiachu's user avatar
  • 43.1k
2 votes
1 answer
296 views

Getwork and GetMemoryPool - why is previous block hash different?

When I called: print bitcoin.getmemorypool() print bitcoin.getwork() using Python JSON for a testnet BitcoinQT server, I got the following responces: {'previousblockhash': '...
ThePiachu's user avatar
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3 votes
1 answer
400 views

How to merged mine with getmemorypool RPC command?

The getmemorypool RPC command lists all transactions that are to be included in a block, with the exclusion of the generating transaction. In merged mining, one needs to add an extra transaction ...
ThePiachu's user avatar
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