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: 2122
Hash: 7f4a5b1c0a8cd106291e0908631f817c25b7c316e9230ac1e84cc56773907625
Previous block: 5afe71bc7ca788f8be897394a8d257216462c054076799c17fad47a9ddd397fb
Next block: 3e1b9e94b590bf06886b709511a191ae959e9fb10b97be3dc992c1104b3f32b3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964790
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c36507f89eadcbf83475ba9a9501ccfad7a40a50412f8eaa0fc52de6170468f6
Median time: 1728964789
Difficulty: 4.656542373906925e-10
Confirmations: 122
Chainwork: 0000000000000000000000000000000000000000000000000000000000001096
Bits: 207fffff