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: 1854
Hash: 4ba08dee2e4fe15a4f9b6d244a5e12e33a2484b34b9b306b972dad059d4769ed
Previous block: 4b2da751615ceb00bd6986f98f9069ba28d305a13efae2a15e2797248119e169
Next block: 0797aed359e9188ddf88abcbb23bb0e57d6f1dbf41007e9e5b5b84b1202cc47b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159232
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c957c6c556b56116868369ce25f2ee83b9601f568a1402e7d660768bd6891c1e
Median time: 1719159231
Difficulty: 4.656542373906925e-10
Confirmations: 390
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e7e
Bits: 207fffff