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: 2613
Hash: 09f5126725f8e50e979b2db732ad08b3281215a3276a6d0bdaa939a638d31b30
Previous block: 6f6921b9af2c718eb8c1a66fc2ce0bcd019b611acd209b51987861567a32f5e9
Next block: 2223f434f4aea3d2454dbd8fbc80392c15048b2477f51e918b51965b39a115cd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847322
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6ed042bf9012b30327fb38453c15c2e14b5829e9a4efdc14e89a20229b5e1b4c
Median time: 1743847321
Difficulty: 4.656542373906925e-10
Confirmations: 30
Chainwork: 000000000000000000000000000000000000000000000000000000000000146c
Bits: 207fffff