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: 2447
Hash: 3862ef5378fa3808e586adeed97e8c7d54eb0edca12491a28944c160e31f0b73
Previous block: 68541b354263b18e6056930c3e47523ae0c55680b658721f7c5053d1f3c9b726
Next block: 2a8e5e7e73d7cd3aa9d821758c30c00fcce2fc931aeced175355cdd514fc3a81
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847294
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: e50f845e9312c210cc47422a24b22ead0db7d916c7d46752be542ac3834e0615
Median time: 1743847294
Difficulty: 4.656542373906925e-10
Confirmations: 196
Chainwork: 0000000000000000000000000000000000000000000000000000000000001320
Bits: 207fffff