Demo Mode (slow updates, not fully accessible):  This site is willing to provide full block explorer and coin node service for a monthly fee dependent on blockchain size and number of transactions.
Payable in major cryptocurrencies such as LTC, and DOGE. Look for the $ symbol at the bottom of this page.
Wallet Node Version
  The TRK wallet is accessed via fast direct RPC calls.
      The wallet/node used by this explorer reports the following version information.
version:  v2.0.0.0
protocolversion:  75024
walletversion:  60000
berkeleydb_version:  Berkeley DB 4.8.30: (April 9, 2010)
openssl_version:  OpenSSL 1.0.2u 20 Dec 2019
boost_version:  1_59
compiler_version:  9.3.0 (9.3.0)