Abstract: A network node in a peer-to-peer network of nodes includes at least one processor, at least one memory, and at least one network interface. The at least one processor is configured to receive a request to transfer a security token and execute a plurality of compliance rules associated with the security token. At least one of the compliance rules is implemented using at least one smart contract. The at least one smart contract references a global registry. The at least one processor is also configured to transfer the security token based on the execution of the compliance rules. The global registry includes personally identifiable information (PII) hash(es) for each of at least one investor associated with the transfer of the security token. The hashes are committed to the distributed ledger and updated when PII of a respective one of the at least one investor changes.

Abstract: A valve system automatically controlled by an expanding/contracting material and method of dispersing fluid through valve system are provided. The expanding/contracting material may be a hydrophilic material, wherein providing fluid to the hydrophilic material causes it to expand and constrict a hose or tubes dispersing fluid to a designated area. The constriction of the hose or tubes prevents fluid from coming into contact with the hydrophilic material allowing for the hydrophilic material to dry and contract, thereby releasing the pressure from the hose or tubes.