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: 198
Hash: 096cd756799aa42a42b8f0b44bc0422864e6898eb889e1f0c376fc35f4eab468
Previous block: 578d5ca0a9f4621e27c23c6fb569a497e1e432f257a5032bf65065918fdf174d
Next block: 38c39d1c0ddd0540d768beb9e332d49bb2ebf072ce07970e95445abb9e8b37c3
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597900
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 517466fc97011b41f16e73ee8619371f6ea9a56f2486d33f97b7eba94495f108
Median time: 1701597899
Difficulty: 4.656542373906925e-10
Confirmations: 2046
Chainwork: 000000000000000000000000000000000000000000000000000000000000018e
Bits: 207fffff