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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2470
Hash: 15c5d986312d0ba91768d5bd099e14b601410138ee40c078fb12aac89a883926
Previous block: 1da5b7c302fc7bc39f7211eae8f194761331fdb6cd0c61b429689f3138d36cfc
Next block: 6079fee15f97238a4d913a36595577a886765c6180fa86180f54c6f7d4ba57f9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847298
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: cbcfe8c130e290a6ce3660e27969517aa53885fc1c86c2dc320c03d63c49f247
Median time: 1743847297
Difficulty: 4.656542373906925e-10
Confirmations: 173
Chainwork: 000000000000000000000000000000000000000000000000000000000000134e
Bits: 207fffff