Errors

consistent_version

0.56,4.15

valid_signature

gpg: Signature made Mon 01 Apr 2024 05:11:35 PM JST
gpg:                using RSA key C2E15D4EF1D26573A85F25F03521A36D7CDCA07E
gpg: requesting key 3521A36D7CDCA07E from hkp server keyserver.ubuntu.com
gpg: Can't check signature: No public key
==> BAD/TAMPERED signature detected! <==