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Questions tagged [empty-blocks]

Blocks containing only the coinbase transaction are referred to as "empty blocks".

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what's inside empty blocks? what purpose does it serve?

i understand that blocks are created if there's a transaction, i've also seen many similar questions asked before about this, but i still wonder many answers stating that miners will mine empty blocks,...
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1answer
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How this is possible to generate blocks with no transactions? [duplicate]

I found this block in blockchain explorer. It is pretty well confirmed, but it has no transaction inside, except "Newly Generated Coins" one. How this can be possible and what for? Additional ...
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1answer
323 views

Is it possible to mine empty block without downloading entire blockchain?

As far as I can understand, whole blockchain is required for verifying and discarding double-spend transactions. Also, mining empty block is accepted by bitcoin's blockchain protocol. When we want to ...
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2answers
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Can someone explain this weird mining activity?

I can't figure why this block has 0 coinbase with 0 transactions... however still a valid block? Or it it empty? According to whalepanda this coinbase was sacrificed by unknown miner. See the block ...
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1answer
891 views

Why is this block empty?

The block #492972 mined today, seems to be totally empty (except the 12.5 BTC reward, i.e. 90'000 USD as of today). How can this happen?
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1answer
994 views

What are the minimum sizes for transactions and blocks in Bitcoin?

I have gone through many research articles but couldn't find out what the minimum sizes of a transaction and a block are. Is there any reference where I can find an answer to my question?
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2answers
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Why does Antpool mine so many empty blocks?

AntPool, the largest mining pool mines a lot of empty blocks (quick stat over the last 100 blocks they mined at time of writing shows 20% <10kB). While I understand that sometimes it is useful to ...
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1answer
268 views

How do the miners earn money after 2140 on no-transaction-block?

A block can embedded no transaction, miner gets no fees for this block. So, how do the miners earn bitcoin/money after 2140 on no-transaction-block? thanks, -baco (a back-to-the-future-man from ...
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1answer
82 views

Minimum number of transcation in blocks one must include? [duplicate]

Anybody as the miner can just include 1 transaction and mine 12.5 award transaction and nonce and although it may not speed up my process as (number of transaction +Award+ Nonce)=some Constant to be ...
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2answers
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Creating empty blocks vs creating full blocks

I've already read many different answers to this topic. Is it correct that the miner decides on his own if he includes any transactions in his block and how many (as long as the block size is <...
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1answer
509 views

Why was block # 289791 empty of any transactions? [duplicate]

I just came across something strange, block no 289791 which was mined on Mar 10, 2014 is empty of any transactions. Is it because the miner refused to accept any? Or something else?
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2answers
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Are sequential blocks more likely to be “empty” if solved by the same entity?

If not SPV mining, so-called "empty blocks" occur if there are no available transactions to include and is usually when the previous block was solved a short period of time previously. Is there any ...
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1answer
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What is SPV mining, and how did it (inadvertently) cause the fork after BIP66 was activated?

I'm curious to hear an in-depth explanation of the hard fork and how it was caused; I've heard/read a great deal but I'm lacking a cohesive explanation.
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How often does a block have only one transaction?

I was looking at blocks on blockchain.info, and came across this one with only one transaction in it: (the mining reward one) https://blockchain.info/block-index/512049/...
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2answers
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How did Satoshi manage to mine so many bitcoins being the first user of the system?

I'm just learning about Bitcoin and if I understand its conception properly, mining bitcoins means validation of transactions by computing a hash which should satisfy some preset condition. In other ...
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2answers
1k views

Can you mine without transactions?

As far as I know, mining means verifying transactions and thus keeping the Bitcoin network alive. Today, at a local meetup, some people have informed me that mining doesn't need transactions. They ...
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2answers
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Miners Create Their Own Work?

Conceptually, even if the network doesn't have any "real" transactions, the very act of mining creates new transactions to be mined. Self fulfilling prophecy. So, what is the real purpose of mining ...
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2answers
269 views

How Is Block Assembled?

I think I understand mining well enough, but what I don't get is how the blocks of transactions are assembled. According to this post - What exactly is Mining? - the miners assemble the blocks and ...
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1answer
1k views

Why there are blocks with single transaction in blockchain?

Just opened blockchain.info and found two blocks with single transaction on the main page: 292942 292947 Isn't it strange? More than this, block 292941 was issued just minute before 292942 and has ...
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1answer
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Does mining activity only exist if there are bitcoin transactions? [duplicate]

Bitcoin's mining only exists, if there are some transactions, right? If nobody trades bitcoins, the miners don't have any transactions to validate, and so the number of bitcoins in circulation doesn't ...
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2answers
320 views

What happens to a miner's work when they restart?

I am studying the bitcoin internals and especially the proof-of-work. The proof-of-work is based on the mathematical problem that we have to compute from an input that produces a hash with a certain ...
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1answer
1k views

Bitcoin block hashing algorithm. nonce [closed]

Referencing the Bitcoin wiki, what is the auhoritative source for providing a hash of the previous block? Or do miners keep listening to latest blocks? How is hash of the Merkle root generated? Can ...
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3answers
1k views

If there was a period of time with no transactions, what would miners have to do?

This question is similar to a few others, but I haven't gotten seen a clear answer anywhere. It came up as I was trying to explain mining to a newcomer. And he asked: "If aliens came and put all ...
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2answers
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Can a block ever be empty?

The standard response is "no, the reward is at least one transaction." What about after there is no more reward?
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1answer
848 views

What is the smallest block ever mined?

Has any miner ever earned their 50/25 BTC solving a block with only one or two transactions? Maybe they got lucky before the full ten minutes?
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3answers
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What can be done about the no-transaction block relayer (currently 71.123.170.150)?

An unknown major solo miner (currently IP 71.123.170.150), most likely a botnet, is relaying blocks with zero transactions. Two weeks ago this miner constituted ~15% of the network, now it constitutes ...
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What happens if there are no transactions in a block?

What happens if there are no transactions in a block? Suppose there is a 10 minute time frame in the middle of the night, maybe on a holiday, and there are no transactions made. Do the miners get ...