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: 185
Hash: 29ae144576172c9560f89b0c437db98d5d44091e2c8d3bb3c5f80d91a191a37c
Previous block: 625e44c3c01e4ed049c0cf2575a3d27b2c1050cbdfdf947c14901b93fd19acbf
Next block: 2c4b2367da6f2bb90015aac1377448e8f6e0c3800e0edc64e77740d77118d2de
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597898
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 43a21520bcc38e89ce9684cf16d2fca351671f86f1a79ab9ffc95f06cad73b7c
Median time: 1701597897
Difficulty: 4.656542373906925e-10
Confirmations: 2059
Chainwork: 0000000000000000000000000000000000000000000000000000000000000174
Bits: 207fffff