# ? Which statements about OP\_CHECKMULTISIG are true? (Select all that apply)

* [x] Signatures must be provided in the same order as their corresponding public keys
* [x] The opcode has a bug requiring an extra dummy value on the stack
* [x] It can verify any M-of-N configuration where M ≤ N
* [ ] All N public keys must sign the transaction

Note to learners:

Only M signatures are required from the N available public keys, enabling flexible threshold signing.


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