@type t() :: %CharterAgreementProtocol.AcceptanceFacts{
  acceptance: CharterAgreementProtocol.Acceptance.t(),
  acceptance_digest: binary(),
  accepted_at: CharterAgreementProtocol.Timestamp.t(),
  charter_id: binary(),
  descriptor_position: :head | :superseded | :contested,
  not_verified: [atom()],
  party_descriptor_digest: binary(),
  party_role: binary(),
  prev_revision_digest: nil | binary(),
  revision_digest: binary(),
  revision_number: pos_integer(),
  signing_key_id: binary()
}