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: 2045
Hash: 042f1de35379d3b694df275a70e7879bbd02e5024eab27b48523b77c953d95e1
Previous block: 2998ddcc2eb538338927a4888290c54f25e38fd6770c6bc339d3a070ba3033fb
Next block: 07535857b5d77c4c5864a0c7d6edc3d17d87d16a11db4e6bc9948bd13f41f44d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964777
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: d817572218ba111976665d66207ee74a0bf82c0ad9259d1357b7b08128279d80
Median time: 1728964777
Difficulty: 4.656542373906925e-10
Confirmations: 199
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ffc
Bits: 207fffff