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 github.com/pdxrod/blockchain_explorer.

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

Height: 941
Hash: 00328c7fb361093f5723a72a0236ef8d8dc68cffecfd6a67c2b58354beadc480
Previous block: 66bde04d5f69da4b6c0c3f685bc856247a917a6dbde97d0bebad114a457b0b6b
Next block: 18a5d20d5324b51f25aae8d4d52b014f8af436297b8e141bc815687ace7084c3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857825
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: be903c644fdde5b118bdd78867f1979fc3adb30b903b17114afbd4cdef8e12a3
Median time: 1707857824
Difficulty: 4.656542373906925e-10
Confirmations: 1303
Chainwork: 000000000000000000000000000000000000000000000000000000000000075c
Bits: 207fffff