thanks for link
dogechain and litechain working same as blockchain?
Every crypto currency has its own block chain.
Transactions for Bitcoins are stored in Bitcoin's block chain. Transactions for Dogecoin are stored in Dogecoin's block chain and so on...
There are different ways to access these block chains.
You can you many of the available sites (blockchain.info, blockexplorer etc.. just Google) to view Bitcoin's block chain (public ledger).
Other currencies have their own explorers, you can find references on official sites of those coins.