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: 2399
Hash: 4ec1df3aa3db5dcb73821b133b148c1e77156580e1b77ad4d971afedc44494ce
Previous block: 5fa8559333dee887ad8aa9344076a4fffc2051da76e8ce9dbec97fa34c76be0d
Next block: 13741cefcba41c35fff6c69e66c41ee9f5ad078e4ff9f4fa45f1534361c288bd
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847286
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 32fc3f0ce709013197ea63106b27f47cd15c7f5b0d824b700dff48379fa34ec9
Median time: 1743847286
Difficulty: 4.656542373906925e-10
Confirmations: 244
Chainwork: 00000000000000000000000000000000000000000000000000000000000012c0
Bits: 207fffff