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: 477
Hash: 1128a1154c3794b587df403d86c3e413a1a403fdde00df63976d55e99c542619
Previous block: 54df5ce6b6270db3f31ee234991c260c01f64d829d90de53712304a28121229c
Next block: 0c43ef2906f6f91ea0bfd9e70d5c4522eb6975368713862db338099ecbcc073c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864223
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: aa6731453d33aece1985e81ba0e72876e4b245ed38294cff2567d474974ddef5
Median time: 1701864222
Difficulty: 4.656542373906925e-10
Confirmations: 1767
Chainwork: 00000000000000000000000000000000000000000000000000000000000003bc
Bits: 207fffff