Method and system for determining a state of an account in a network device running a light client protocol of a distributed ledger technology network

A network device for determining a state of an account of interest in a distributed ledger technology (DLT) network, the network device comprising:

• one or more processors;
• and
• a computer readable storage medium storing a set of computer readable instructions that when executed by the one or more processors cause the network device to:
• determine whether the DLT state indicator is indicative of the state of the account of interest, wherein the DLT state indicator is a representation of a state of the DLT network that is trusted by the network device,
• responsive to determining that the DLT state indicator is indicative of the state of the account of interest, retrieve the state of the account of interest based on the DLT state indicator, and
• responsive to determining that the DLT state indicator is not indicative of the state of the account of interest, perform the following:
• determine a first set of one or more transactions that include the account of interest, and
• execute the first set of transactions to obtain the state of the account of interest.

A method performed by a first network device in a distributed ledger technology (DLT) network, the method comprising:

• executing transactions of the DLT network;
• storing for each transaction from the transactions an input set that includes identifiers of one or more accounts that are input to the transaction and an output set that includes identifiers of one or more accounts that are outputs of execution of the transaction;
• receiving from a second network device, a request for transactions that include an account;
• determining based on at least one of the input sets and the output sets, a set of one or more transactions from the transactions, wherein each transaction from the set of transactions includes the account as at least one of an output and an input;
• and
• transmitting the set of transactions to the second network device.

A first network device in a distributed ledger technology (DLT) network, the first network device comprising:

• one or more processors;
• and
• a computer readable storage medium storing a set of computer readable instructions that when executed by the one or more processors cause the first network device to:
• execute transactions of the DLT network;
• store for each transaction from the transactions an input set that includes identifiers of one or more accounts that are input to the transaction and an output set that includes identifiers of one or more accounts that are outputs of execution of the transaction;
• receive, from a second network device, a request for transactions that include an account;
• determine, based on at least one of the input sets and the output sets, a set of one or more transactions from the transactions, wherein each transaction from the set of transactions includes the account as at least one of an output and an input;
• and
• transmit the set of transactions to the second network device.