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: 694
Hash: 51f77e1923e737f51e1794f941a5661a76032a53716623038edda4a2bfa5a685
Previous block: 16fa440398094e0d82ca3ab387a821fd5b93fa5081ec569ef0a68e4dd467e299
Next block: 78fa7e1a9d07e9cb51362940e17fd21aa5797d8f558653c4e72ba9bba8b1f958
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864259
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0f3e895a2986cf97e3b0ef99d2ee746448e1df23c16fc6eaa56abd3f7fa3e8f2
Median time: 1701864258
Difficulty: 4.656542373906925e-10
Confirmations: 1550
Chainwork: 000000000000000000000000000000000000000000000000000000000000056e
Bits: 207fffff