Some special transactions about F2Pool.

[a8832021]

I found on recent days,each block mined by F2Pool contains a special transaction.The input address is 1JRhv7zRN9xCyTntYT5nuupg7JMsE7YocL.And the output contains an OP_RETURN which meaning is unclear,and two dust outputs BTC to some certain addresses or black hole address.Then is a change address.The most special thing about this transaction is that the fees is zero.So the transaction is added by the pool.I don't know the usage of the transactions,who knows?

[Upgrade00]

The fees for those transactions are not zero as can be seen on a block explorer, but they are low.

The OP_RETURN feature means those transactions are unspendable. It was added to the network to reduce the incidence of people including messages into a transaction and increasing the size of it, that can be done now using the OP_RETURN command.

[nc50lc]

-snip-
So the transaction is added by the pool.I don't know the usage of the transactions,who knows?

It appears that they are also working on "Stacks Blockchain" while mining Bitcoin blocks.

For example: This zero-fee "special transaction" of theirs: blockstream.info/tx/1e6d26895507a570b99d2333f90e139f607064bf9c96ef78703de9e5d3683cd2
Which is included to Bitcoin block #838098 is used as "Anchor transaction ID" of this Stacks (STX) block #145,526

[a8832021]

-snip-
So the transaction is added by the pool.I don't know the usage of the transactions,who knows?

It appears that they are also working on "Stacks Blockchain" while mining Bitcoin blocks.

For example: This zero-fee "special transaction" of theirs: blockstream.info/tx/1e6d26895507a570b99d2333f90e139f607064bf9c96ef78703de9e5d3683cd2
Which is included to Bitcoin block #838098 is used as "Anchor transaction ID" of this Stacks (STX) block #145,526

Excellent. I know the practical use of these transactions. Thank you very much!