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: 444
Hash: 6160eadfd8ffda431425d6a15ab6439da63ae6e0a12912ab484220660ed93e64
Previous block: 245161cc2654de8a98ca83064790f8968db77f01f17e7d0e57f919a5de57920f
Next block: 03480d5d633ff04fac7dca1d86953edb1844ecd6fa44f7a86f076281a966de4c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864217
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bc5b5ba0fd58b0c3e334117076b6f0b80be187bfa4585ea3060ec381f123fffb
Median time: 1701864217
Difficulty: 4.656542373906925e-10
Confirmations: 1800
Chainwork: 000000000000000000000000000000000000000000000000000000000000037a
Bits: 207fffff