The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mkrgsKuFE

Height: 1603
Hash: 6594e8a5b8891d3908d8221eb357da8e78c637d3aebc154dffcc33f6d8db82e3
Previous block: 7b219e039002f619805e61d0f81753a2ff2af88c222bb5b059f2abbd9790c6fe
Next block: 434806ab003b3228ee6dd7e2343275ba7e03b4867473b43417d5f6fc55059e9a
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932137
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 2a99c6a6e2fbb81470a46e11b8215032b109b1968536dd158a31febc59e46777
Median time: 1708932136
Difficulty: 4.656542373906925e-10
Confirmations: 6
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c88
Bits: 207fffff