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. mgqFp9Dhy

Height: 2230
Hash: 09e7e31226f2ee60580fb96910f180abcb32187bc51901467e358b444889c375
Previous block: 65e0c26186cc1f22748e999c84571ad0eb261e29e54c42b798aa855268b61bef
Next block: 3408c2cbc696b5075a19c10c5cf5ce9b59d75e2df1544b6178f90a901fac5511
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964808
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: ff85a9b4e58bce5011dab201bfcfba783be45de4ce11a230b1e09e6f0ad1a1ac
Median time: 1728964807
Difficulty: 4.656542373906925e-10
Confirmations: 14
Chainwork: 000000000000000000000000000000000000000000000000000000000000116e
Bits: 207fffff