Hi all, as far as i understand OP_Checksig is there to check authorization. It guarantees that the creator of the transaction is authorized to spend the funds of a previous transaction. It does not guarantee integrity of the current transaction, since the signature is over the outputs of the previous transaction (modulo some gory details https://en.bitcoin.it/w/images/en/7/70/Bitcoin_OpCheckSig_InDetail.png)
So there needs to be another mechanism for that. How does that work? What prevents miners from modifying the txouts of unmined transactions? I assume this is also solved by signatures. Is the whole transaction signed by the public key before relaying? All the best Henning -- Henning Kopp Institute of Distributed Systems Ulm University, Germany Office: O27 - 3402 Phone: +49 731 50-24138 Web: http://www.uni-ulm.de/in/vs/~kopp _______________________________________________ bitcoin-discuss mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-discuss
