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: 2132
Hash: 226140c47e964153a37e7a31a516804d3562c4fdd6c249afb404d95d16f00c18
Previous block: 52c57cd0a165a3c7af584350d5c8dd0a1c8e25968b2f90a5502b8f8a431f5c67
Next block: 4080d957f1f44c75cbad64e3928d4240fb902496c398958970aae1dec44b64d0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964792
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: fdfb12200b6bd562bc1d9e08fd57c5292b1bdab794f0f4e44e8922b8d8845af2
Median time: 1728964791
Difficulty: 4.656542373906925e-10
Confirmations: 112
Chainwork: 00000000000000000000000000000000000000000000000000000000000010aa
Bits: 207fffff