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multi signature – Is P2TR-MS (Taproot M-of-N multsig) leaking public keys?

by n70products
March 9, 2026
in Bitcoin
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multi signature – Is P2TR-MS (Taproot M-of-N multsig) leaking public keys?
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I am using P2TR-MS (Taproot M-of-N multisig) using the library “@scure/btc-signer”

M-of-N single leaf TapRoot multisig ( CHECKSIG [ CHECKSIGADD]  NUMEQUAL)

It is unclear to me if Taproot 2 of 3 multisig is revealing any of public keys. The documentation about taproot is very confusing.

var locking = btc.p2tr_ms(2, [ pub1, pub2, pub3 ]);
...
const psbt = btc.Transaction.fromPSBT(base64.decode(psbtBase64));
psbt.signIdx( key1.privateKey, 0);
psbt.signIdx( key2.privateKey, 0);
psbt.finalize();

Will the transaction reveal any of the public keys ? Could you point me out which public keys will be reveled on the blockchain if any ?



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Tags: keysleakingMofNmultimultsigP2TRMSPublicsignatureTaproot

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