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: 1895
Hash: 59cb66998ce295786ad4caff1e8ff2bf249382fc2a41bbc4bf06bfdd97f49674
Previous block: 7860416084ca6aec1eea38bcaebe9db3df88ddd62f6e286f5bf2464f885b627f
Next block: 52cef971f2639871e34c7258bd08dfe0279ce6b1e3797fb95df6be09d2fc5aee
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159239
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 043392b8a9ba61089f940e0f16c0f6f8ebbe9d5f5eef0c2f3938d6cf0cef3b35
Median time: 1719159238
Difficulty: 4.656542373906925e-10
Confirmations: 349
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ed0
Bits: 207fffff