I'm confused...which is now the correct chain?

When I look at block 39327 I get b4b5eb074c20b1b483d7620ad22519497027c32ca34c7639f4329f4ecf771f08 (which matches the explorer).

This is after downloading Nightz chain but when I look at previous posts they are stating that the correct hash for this block is f1b18e6d3369b17009295d73c3c64edd2c4f9c0b76c404993e8e8ba8561fc560