in transaction, what is 'hash' data? i'm studying Bitcoin: A Peer-to-Peer Electronic Cash System Satoshi Nakamoto

and this paper introduce a transaction model. (above picture)


but i don't understand what is 'Hash' means exactly 

i think Hash is same  Bitcoin API JSON-RPC - signrawtransaction function

it means hash(txid + owner's public key)? then what method used hash function?

or  hash(result of signrawtransaction + RIPEMD160(sha256(pub k)) )? then what method used to hash?
The hash refers to the signature hash, to which all tx data except for the input script is committed to (unless you are signing with a sighash flag other than ALL).

The signature hash is what is signed with ECDSA to produce the signature.