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

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

Height: 1584
Hash: 1e4c5f96a9a356724700b672c67f4f139b595f47d7d9025a4c2eed8377bdab0a
Previous block: 0682d7490b97f782958d1a39486cceff71275b18eae22387dfa530f74fe1eb1f
Next block: 11b615b14206ccf30802d087e628c1e20ab2b88ba25160d9e259c7c4450bd25d
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932133
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: fbbf8a6c5fcc16876da76f7b07b7349e3de5540975a03418caed9561390cd99f
Median time: 1708932133
Difficulty: 4.656542373906925e-10
Confirmations: 25
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c62
Bits: 207fffff