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Author Topic: coinbase transaction when block reward is 0  (Read 936 times)
jabetizo
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March 23, 2013, 10:52:00 PM
 #1

once all 21 million bitcoins have been mined, will a block be valid if its coinbase's output is 0 BTC (assuming there are no transactions with fees in the block)?

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Peter Todd
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March 23, 2013, 11:45:37 PM
 #2

Blocks are already valid with the coinbase reward set to 0 - the reward is allowed to be less than the maximum allowed.

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March 24, 2013, 02:04:18 AM
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A corner case to keep in mind if we ever want to prohibit zero value outputs!

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Peter Todd
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March 24, 2013, 02:10:43 AM
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A corner case to keep in mind if we ever want to prohibit zero value outputs!

Ha, good point!

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March 24, 2013, 02:12:12 AM
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A corner case to keep in mind if we ever want to prohibit zero value outputs!

i didn't know they were currently allowed, thanks Smiley

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March 24, 2013, 04:36:00 AM
 #6

Coinbase shouldn't reach 0 until 4*32=128 years later.

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