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5

TL;DR: depending on what you mean, there is probably no published scheme with a security proof, but there is hope for such a scheme. First, a few clarifications Aggregation is just a concept, not an actual protocol, and there are many ways of accomplishing that. It is made significantly simpler due to Schnorr's linearity property, but the security of a ...


0

Yes. Because of schnorr's linearity you can aggregate as many as you want.


3

This is unrelated to taproot. The "addresses" field in Bitcoin Core's RPC output was historical legacy that was at best outdated, and at worst confusing. Since 22.0 the field has been deprecated entirely, for all types of transaction outputs. It can (temporarily) be re-enabled using -deprecatedrpc=addresses, but in 23.0 it will be gone entirely. My ...


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Multisignature and threshold signature schemes deal with keys: private and public keys. Addresses before Taproot were hashes of the public key (if it required a single signature from a single key) or the script (if it required a scriptSig to satisfy this script). If you wanted to use n addresses for a threshold signature scheme you would set it up using the ...


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