def METHOD_NAME(self, reward_program_id: str, block_number: int):
    query = """
    {
        merkleRootSubmissions(
            where: {
                rewardProgram: "%s",
                blockNumber_gt: %d
            },
            orderBy: blockNumber,
            orderDirection: asc
        ){
            id
            blockNumber
            rootHash
            paymentCycle
            rewardProgram {
                id
            }
            timestamp
        }
    }
    """ % (
        reward_program_id,
        block_number,
    )
    return self.query_subgraph(query)["merkleRootSubmissions"]