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: 2111
Hash: 2c1d61c84554eb565edf7fe83477a92d6a64a919ce5c667fc72f0fc3932df386
Previous block: 1a10af1a68410f50e843c665143371d5ca79c002e09dea787217ab5b9dd74ef3
Next block: 35a72aa022baa9c941d3db432bbec25e3641392076fe95fde83d54c64255f4ba
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964788
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 153541593985788c46a9c38fb6e17ee3c29d352ea80334ecd10224c6ea02a35e
Median time: 1728964788
Difficulty: 4.656542373906925e-10
Confirmations: 133
Chainwork: 0000000000000000000000000000000000000000000000000000000000001080
Bits: 207fffff