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: 2151
Hash: 10dcfcdf5bccde4bd99c8070d50fce9a85b92e3b3f9317633ef19655f95c3be4
Previous block: 055503d35df7467044162d4d50aed0a960cf3a155ced62f33466909f7791808f
Next block: 63493e1f1a8796db4a500fd2c1e0e4932ab954e33af57c487ad07840875564bd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964795
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: a37d21db932dfadcde36cd88e9fce16e017828644d484f9b3485df53400e8e4e
Median time: 1728964794
Difficulty: 4.656542373906925e-10
Confirmations: 93
Chainwork: 00000000000000000000000000000000000000000000000000000000000010d0
Bits: 207fffff