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: 1775
Hash: 7d9476ca3184d930945cabb7f7de688a488f19eba7b7cf1e9cb76159e4902e48
Previous block: 65d68d7221e5d6f7fb78a0a09eaf222a9e50ac719abd7e6b25b6dbefd4f66de9
Next block: 056996f8e1bf9a374f4bd2e67385dc6bdd4797bf0cf04e71976dfee011ffac0e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159219
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c5e202d99a7862b4ffdf85b6ba115d260e8b17e23baae2acf97f3156910143ee
Median time: 1719159218
Difficulty: 4.656542373906925e-10
Confirmations: 469
Chainwork: 0000000000000000000000000000000000000000000000000000000000000de0
Bits: 207fffff