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: 196
Hash: 41b6dec361192a4359f030b938217e3ec70062855f5aa43311a1a79c9330339e
Previous block: 7590a94ef0815fd60a9dd825540f553ab92a05c982cca16de9b9bb417578307f
Next block: 578d5ca0a9f4621e27c23c6fb569a497e1e432f257a5032bf65065918fdf174d
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597900
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: d75eb89931823ccfd9deb53c59a1a4856ff3cff7c3817ecd7f6adaa25183a704
Median time: 1701597899
Difficulty: 4.656542373906925e-10
Confirmations: 2048
Chainwork: 000000000000000000000000000000000000000000000000000000000000018a
Bits: 207fffff