Methods and systems for a heterogeneous multi-chain framework

A decentralized computer network to enable shared security for a heterogeneous plurality of blockchains, interoperability between the heterogeneous plurality of blockchains, and scalability of the heterogeneous plurality of blockchains, the heterogeneous plurality of blockchains comprising parallelized chains (parachains) to process transactions in parallel and a relay-chain to provide security, advancement, and communication channels for the parachains, the decentralized computer network comprising:

• a plurality of nodes, each node in the plurality of nodes communicably coupled via peer-to-peer technology to every other node in the plurality of nodes, each node in the plurality of nodes having a unique identity and being configured to perform at least one prescribed function, wherein the plurality of nodes include:
• a plurality of collator nodes, each collator node in the plurality of collator nodes associated with a corresponding parachain and configured to create (i) a corresponding candidate block representing a state transition of the corresponding parachain caused by at least one transaction executed on the corresponding parachain and (ii) a proof that the candidate block is a valid child of a parent block on the corresponding parachain;
• a plurality of validator nodes running client implementations of the relay-chain, each validator node in the plurality of nodes assigned to the corresponding parachain, communicably coupled to at least one corresponding collator node associated with the corresponding parachain, and configured to:
• receive the corresponding candidate block and the proof that the corresponding candidate block is the valid child of the parent block from the corresponding collator node;
• evaluate validity of the corresponding candidate block based at least in part on the proof;
• and
• in response to reaching a consensus among a first subset of validator nodes in the plurality of validator nodes that the corresponding candidate block is valid, attempt to include the corresponding candidate block into the relay-chain as part of a relay-chain block;
• and
• a plurality of fisherman nodes, each fisherman node in the plurality of fisherman nodes configured to monitor the plurality of validator nodes and to forward a challenge to at least one other node in the plurality of nodes, the challenge including a proof that a given validator node has improperly evaluated the validity of the corresponding candidate block,
• wherein upon determining that the given validator node has improperly evaluated the validity of the corresponding candidate block, the decentralized computer network is configured to punish the given validator node to enable the shared security for the heterogeneous plurality of blockchains, and
• wherein inclusion of the corresponding candidate block into the relay-chain as part of the relay-chain block moves a transaction on an output queue of the corresponding parachain into an input queue of another parachain, enables interoperability among blockchains in the heterogeneous plurality of blockchains, and enables the scalability of the heterogeneous plurality of blockchains.