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Is it possible to create Bitcoin transactions of zero value, or in other words sending 0 bitcoin to an address?

user1973385
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Yes, it is possible and allowed by the consensus rules to create 0 value outputs. Such outputs can even be spent. However such outputs are also non-standard and thus transactions with 0 value outputs will not be relayed. They can still be mined into a block by a miner directly inserting the transaction into a block they are mining.

Andrew Chow
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