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: 2115
Hash: 2041abb0967fe3f23b36b435d73a7b956b346e6ec9274a28b33c21ac88db8dfd
Previous block: 26f9547a3fff09e2bc34c709d3148ce5a089ac069e61496f114c12978a34127f
Next block: 744a656e0c5b3f858db9a0fd91273d70c04f5113833ed489d789b5acc75e6f64
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964789
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 67f54c60cfb9c112afc2fcea2c41c4d3069e84a45d8d49917e1f400dca22bdbd
Median time: 1728964788
Difficulty: 4.656542373906925e-10
Confirmations: 129
Chainwork: 0000000000000000000000000000000000000000000000000000000000001088
Bits: 207fffff