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: 372
Hash: 462f54d47accd1eaab4cf4d4c2ccedbd9a765668701bb184df2c58e6bb8b8644
Previous block: 4875e07a9dd6fbf90b3b8ec866f7af5b907ea416df5122b428c0c637094e5c79
Next block: 20100a53a77941d9a14b2fa5fcb5a8bec3cf095251836cc4d0c546a21667cb46
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597929
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: cb979807de440ee8d5d150fdf9f324c6a72386dd7b5de789d583daae971e885d
Median time: 1701597928
Difficulty: 4.656542373906925e-10
Confirmations: 1872
Chainwork: 00000000000000000000000000000000000000000000000000000000000002ea
Bits: 207fffff