Whats the difference between "txid" and "hash" - getrawtransaction bitcoind

Whats the difference between "txid" and "hash" - getrawtransaction bitcoind

Sometimes the txid key is the same as the hash key in the return of getrawtransaction, sometimes different. I'm trying to understand more about these...

What are the differences, and why are they sometimes identical and sometimes different?

Example - identical in this testnet tx:

bitcoin-cli -testnet getrawtransaction c3f11d1708ac20eff9137d4eadd62dd99d71ce22dc51bc51d4e5b83958d9596d 1

Example - different in this livenet tx:

bitcoin-cli getrawtransaction df2fd78e42590f301b5174e7d6665887380ad1f49a4688a0f8adffa0829855cc 1

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