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: 1305
Hash: 54a69adcb4a9823df706b124393cb2d2ecc587a94a1af9ad2fbb29e32ca3e891
Previous block: 186ffd230a083658757cff96485db1aaadb7993736419d62e0bbf736a265a9f7
Next block: 1235be842731e6f4e9c79f8cb856eff574a4b8d0f4b44a0461cb37108371a12b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697625
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a03e8bc3245737cacea3efefd8f18f78d5893ebc3f95c6594f6da79ad7325794
Median time: 1718697624
Difficulty: 4.656542373906925e-10
Confirmations: 939
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a34
Bits: 207fffff