Link to this headingSPHINCS+

Post Quantum Crypto NIST approved Algorithm

Uses Merkel trees of Merkel trees of hasshes and secret keys to create a signature.

A signature includes a private key the merkel proofs for the data.
How it works

Link to this headingSecurity

Link to this headingGetting the Public Key from Signatures

https://keymaterial.net/2024/06/15/reconstructing-public-keys-from-signatures/#:~:text=hopes%20of%20recovery.-,Chapter%205%20SPHINCS+,-This%20brings%20us