user23123: I am writing a MuSig2 library and need some test vectors. This should include the hash functions used.

user208: As far as I know, there is not even a published specification for MuSig2. One is being worked on at https://github.com/jonasnick/bips/blob/musig2/bip-musig2.mediawiki, but it is incomplete.
There are some test vectors here.

23123: <p>I am writing a MuSig2 library and need some test vectors. This should include the hash functions used.</p>
 208: <p>As far as I know, there is not even a published specification for MuSig2. One is being worked on at <a href="https://github.com/jonasnick/bips/blob/musig2/bip-musig2.mediawiki" rel="nofollow noreferrer">https://github.com/jonasnick/bips/blob/musig2/bip-musig2.mediawiki</a>, but it is incomplete.</p>
<p>There are some test vectors <a href="https://github.com/ElementsProject/secp256k1-zkp/blob/master/src/modules/musig/tests_impl.h" rel="nofollow noreferrer">here</a>.</p>
