The disclosed embodiments include computerized systems and methods that generate secured blockchain-based ledger structures that facilitate event-based control of tracked assets. In one embodiment, an apparatus associated with a centralized authority of the secured blockchain-based ledger may detect an occurrence of an event, and may access and decrypt a set of rules hashed into the secured blockchain-based ledger using a confidentially-held master cryptographic key. The apparatus may identify a rule associated with the detected event, and perform one or more operations consistent with the rule and involving at least one of assets tracked within the secured blockchain-based ledger or an owner of a portion of the tracked assets. By way of example, the detected event may triggering a sale, transfer, and/or re-allocation of an ownership interest in a tracked asset, and the identified rule may specify a distribution of proceeds derived from the sale, transfer, and/or re-allocation.