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Author Topic: How does one send 0.00 BTC ?  (Read 950 times)
bitstarter
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July 14, 2012, 07:57:18 PM
 #1

I was just on the blockchain.info website and noticed this transaction:
or better yet why?



How does one send 0.00 BTC ?

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Shirik
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July 14, 2012, 08:07:37 PM
 #2

Link to the transaction? Your ID is cut off.

I suspect it's not 0 BTC, but rather just such a small number that it doesn't show up.
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July 14, 2012, 08:08:05 PM
 #3

blockchain.info rounds to two decimal points, bitcoin has eight decimal places.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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July 14, 2012, 08:13:20 PM
 #4

Link to the transaction? Your ID is cut off.

I suspect it's not 0 BTC, but rather just such a small number that it doesn't show up.

I don't know I caught it on the transaction scroll bar on blockchain  captured it Tongue so ..it wasn't mine..

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July 14, 2012, 08:13:43 PM
 #5

blockchain.info rounds to two decimal points, bitcoin has eight decimal places.

ah so it might be cut off ? so might be 0.001 ?

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July 14, 2012, 08:16:39 PM
 #6

blockchain.info rounds to two decimal points, bitcoin has eight decimal places.

ah so it might be cut off ? so might be 0.001 ?

Yep, anything less than 0.005 would show up as 0.00

https://www.bitcoin.org/bitcoin.pdf
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July 14, 2012, 08:25:49 PM
 #7

It is legal to send 0 BTC, but the bitcoin.org client doesn't support sending such transactions. This is useful in some cases.

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notme
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July 15, 2012, 06:25:18 AM
 #8

It is legal to send 0 BTC, but the bitcoin.org client doesn't support sending such transactions. This is useful in some cases.

Could you provide an example use case?

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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theymos
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July 15, 2012, 07:41:58 AM
 #9

Could you provide an example use case?

It's used in hashcoin's payment channels protocol. Miners will need to do it in 100+ years when blocks have no subsidy (if there are no fees). You can use it for tracking an asset without tying up BTC: the asset is represented by the 0-BTC output, and sending this 0-value output to someone (also valid) transfers the asset. You can use it for storing data in the block chain without tying up BTC.

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notme
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July 15, 2012, 04:53:51 PM
 #10

Could you provide an example use case?

It's used in hashcoin's payment channels protocol. Miners will need to do it in 100+ years when blocks have no subsidy (if there are no fees). You can use it for tracking an asset without tying up BTC: the asset is represented by the 0-BTC output, and sending this 0-value output to someone (also valid) transfers the asset. You can use it for storing data in the block chain without tying up BTC.

Thanks

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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July 15, 2012, 06:41:42 PM
 #11

I really expected it to be Disallowed by the blockchain itself simply for "spam protection"
But yeah i can see how it could be useful

It would likely need a transaction fee attached for it to actually be mined in any reasonable time.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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July 15, 2012, 07:07:51 PM
 #12

Such a transaction, I believe, would have a priority of 0, since priority is the product of age and size. Thus, it would certainly need to carry a fee, unless it was produced by someone who had mined a block.

I recommend asking me for a signature from my GPG key before doing a trade. I will NEVER deny such a request.
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