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: 768
Hash: 56db6c236aab5826c1c7b42350a365bf1fce362b95a992926116d81b5269c3d9
Previous block: 797d12f708b3a7b46cb327f437cee320668e30762d11205fd76a8d9d754ff892
Next block: 65d16fa7991464b585e287bf24b30b7f565140479976023bc96e89875be65a5e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864271
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 919be530764b92a3fc17ab0897a7d1adc9ace495a9b316507acc93dfdd3874f6
Median time: 1701864271
Difficulty: 4.656542373906925e-10
Confirmations: 1476
Chainwork: 0000000000000000000000000000000000000000000000000000000000000602
Bits: 207fffff