thats a poorly implemented reward script, if it leaves you exposed to the mining pool with this gentleman's agreement.

the script could have been designed 2 phase, so one first submits a hash of the solution & submitter address, so even if miners front-run the submitter, they just helpfully pay the transaction fee!

▲ LiamPowell an hour ago | parent [-]

There is no script.

	▲	greyface- 7 minutes ago \| parent [-]
		Of course there's a script; every bitcoin tx output has a script. These challenges use the standard P2PKH script, i.e.: `scriptPubKey: OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG scriptSig: <sig> <pubKey>` https://en.bitcoin.it/wiki/Script