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: 1582
Hash: 5a6488aa90b4bc065132ea54e4d66d4ea60c3830fc2bbf0f87c5e4e09f65babf
Previous block: 34d63f2e494435656eefaf3b145cfaa7d56321149ba5e20639c3e87e96168f42
Next block: 0682d7490b97f782958d1a39486cceff71275b18eae22387dfa530f74fe1eb1f
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932133
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: bfa98bd361c4e14df0a7fb92bd29b58e81eccf2a2ed5767b8cfe1fb0d95bcd14
Median time: 1708932132
Difficulty: 4.656542373906925e-10
Confirmations: 27
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c5e
Bits: 207fffff