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: 2012
Hash: 2fc63dc2a70a740bef3a8ff74d48462f8f6d1b44d6b0f1e6177e22c04a90d358
Previous block: 6863ea16b2912d5fc76affe7f96db4971fd51bcc43f0a8ebd8e81a5489f1a94d
Next block: 2c97be13b55fca183c449e5190084e500f6e5c3cb1a1481927d108e451bebd35
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964772
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: e491e5f1261e1db593249308b264b15f89a79509a83a8f2322c5d7098166fe7a
Median time: 1719159258
Difficulty: 4.656542373906925e-10
Confirmations: 232
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fba
Bits: 207fffff