Use GenesisVerifier::try_from_hex and signer.create_verifier, drop the removed ensure_supports_era calls, and return a typed LegacySigningKey error on offline sign.
Validate the rigid protocol message in the genesis producer and signer so a missing SNARK aggregate verification key fails fast instead of signing zeros.
Route the certificate hash migrator through 'Certificate::try_compute_hash' so a serialization error surfaces instead of crashing the migration.
'check_rigid_integrity' is a no-op on legacy messages, so guard with 'is_rigid' to avoid signing an unintended preimage from the wrong message variant.
Compute the hash with 'try_compute_hash' and propagate serialization errors instead of relying on a construction-time panic, updating the genesis producer and certifier callers.
Add fallible 'Certificate::try_compute_hash' and route certificate verification through it, so a serialization error surfaces instead of panicking. 'compute_hash' stays infallible for construction-time use.
Produce the era-appropriate 'CertificateSignature' from the wrapped signer (Ed25519 under Pythagoras, Ed25519 and Schnorr dual signature under Lagrange).
* mithril-aggregator from `0.9.4` to `0.9.5` * mithril-client from `0.14.12` to `0.14.13` * mithril-common from `0.7.2` to `0.7.3` * mithril-stm from `0.10.30` to `0.10.31`
Drop the optional Schnorr half (gating bundles at the module level), move legacy/dual detection into the verifier, and remove the redundant ensure_supports_era.