Cryptographically secure booster packs in a blockchain

A method performed by one or more computing systems for securing a cryptographic model of a pack of digital assets, the method comprising:

• generating a tear transaction request for the cryptographic model of the pack that includes a user identifier and a pack identifier of the cryptographic model of the pack, wherein the tear transaction request specifies a first reward for recording a tear transaction and a second reward for recording an open transaction;
• distributing the tear transaction request within a mining network for recording of the tear transaction in a blockchain;
• deriving a respective penalty score for each participant of a plurality of participants of the mining network based on a quantity of the plurality of participants of the mining network at a time that the participant recorded a prior block of the blockchain;
• choosing a first miner from the plurality of participants of the mining network based on the respective penalty score derived for each participant of the plurality of participants;
• in response to a computing system of the first miner recording the tear transaction in a first block of the blockchain, providing the first reward to an account of the first miner;
• in response to a computing system of a second miner recording a second block of the blockchain that is more than a specified number of blocks after the first block:
• applying an open function to the cryptographic model of the pack to transform the pack identifier to a transformed pack identifier,
• generating the open transaction that includes the user identifier, the pack identifier, and the transformed pack identifier, and
• in response to the computing system of the second miner recording the open transaction in the second block of the blockchain, providing the second reward to an account of the second miner.