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Can a multisig address creation process use other multisig addresses as signers to result in a new multisig address
Would this also result in a greater number of signers to be necessary to approve a result/transaction?
Multisig created from Multisig address
Answers
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No. A "multisig address" is really a hash of a redeem script encoded as a P2SH address. Redeem scripts can't be nested, which means you can't include one redeem script inside another redeem script, so it is impossible to implement the feature you describe under current Bitcoin consensus rules.
