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: 2487
Hash: 40553d836d17e639d9a82ea5afb1ce530addda37e0c47acb45266fb3d45e2f95
Previous block: 2745d079bde5929ae7b9e466d21f3be1b8685448a17b45732143ca11ffd6cfd6
Next block: 28bcd75f3a88d3b7de757123c2e03519169104d1ce6e3b0ff7c7e5b9ea4fb2ec
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847301
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 8bb12dcf212046f36f4a51ba45feb20347c6b35e7745190d65e8639047532065
Median time: 1743847300
Difficulty: 4.656542373906925e-10
Confirmations: 156
Chainwork: 0000000000000000000000000000000000000000000000000000000000001370
Bits: 207fffff