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: 1864
Hash: 6a02070d2c6ed5eb8b5d8c7f129a9a855405fe6e2f901d5bb537287862fc2d5c
Previous block: 6e4fd40327e8a50141327967cadf4ca44425f7157cbc931e4bd56e3423fadaf5
Next block: 01d1fed6fac1a9576a304185df3e0a814c63eadbcc4d9cf6ee26dba2d043f51d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159234
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: b25f48312d2b26d8e4284ff46311fcff31dfd0287d90825c5156af296bbc0a94
Median time: 1719159233
Difficulty: 4.656542373906925e-10
Confirmations: 380
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e92
Bits: 207fffff