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: 1776
Hash: 056996f8e1bf9a374f4bd2e67385dc6bdd4797bf0cf04e71976dfee011ffac0e
Previous block: 7d9476ca3184d930945cabb7f7de688a488f19eba7b7cf1e9cb76159e4902e48
Next block: 4d0c8cb29c78f0a8814af3df5232099a68c0d1d97a726dd40897d9d5a7af99a8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159219
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b5f08ae9aaf81f6b98a0e53b9d67b8be933713f161294e4300c47a678deacf04
Median time: 1719159218
Difficulty: 4.656542373906925e-10
Confirmations: 468
Chainwork: 0000000000000000000000000000000000000000000000000000000000000de2
Bits: 207fffff