A new version of a structured collection of information, different from a previous version, of a cryptographic domain is created. The new version is created to be verifiable as a valid successor to the previous version and to specify a new set of quorum rules, with the new set of quorum rules defining one or more conditions to be fulfilled by a plurality of operators as conditions precedent to update the structured collection. The new version is provided to the plurality of operators. Digital signatures corresponding to the new version are obtained, and, as a result of the digital signatures received fulfilling the one or more conditions defined by a previous set of quorum rules specified by the previous version, the new version is caused to replace the previous version.