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: 1450
Hash: 6764ac1402c0644934f7f6c729b8ab1f0e9b75bdb141714b8a6cac8542481dc0
Previous block: 0aa42ca4772a5d6bedce68961e02d7272cbd43246fd656966551cdc7c58ad1d7
Next block: 611e0774b4c4ff8b6597756c759ec24ed6ed22cd44669729047bed48190e8bcf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697649
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 62614991390bb157112811be8f7ee21c4d2c001950398bd45cae1018180c03b7
Median time: 1718697648
Difficulty: 4.656542373906925e-10
Confirmations: 794
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b56
Bits: 207fffff