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: 466
Hash: 0793b694688da67d57e7a59917bfd2a774bbcb368310a4041472408b49d29146
Previous block: 69687ba47cb4445eac7aec0f4e678a2552bcb4aff94b85c9528f01fcef1eba7e
Next block: 4876ceecbc7967b542ebed0dda011811a221cf7fcdc328bb52752ffd41ba5c7d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864221
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 146801e4f189e4941112975c273d3aef07db74efffbadf2b495b191608eb2de8
Median time: 1701864220
Difficulty: 4.656542373906925e-10
Confirmations: 1778
Chainwork: 00000000000000000000000000000000000000000000000000000000000003a6
Bits: 207fffff