Return information about all known tips in the block tree, including the main chain as well as orphaned branches.
getchaintips(con)object of class CONRPC.
A S4-object of class ANSRPC.
https://bitcoin.org/en/developer-reference#getchaintips, https://bitcoin.org/en/developer-reference#remote-procedure-calls-rpcs
Other Blockchain RPCs: decodescript,
getbestblockhash,
getblockchaininfo,
getblockcount, getblockhash,
getblockheader, getblock,
getchaintxstats,
getdifficulty,
getmempoolancestors,
getmempooldescendants,
getmempoolentry,
getmempoolinfo,
getrawmempool, gettxoutproof,
gettxoutsetinfo, gettxout,
preciousblock,
pruneblockchain, verifychain,
verifytxoutproof