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: 932
Hash: 7e75cac55ba42a176015d87c5e0294f3eec7ecde72261728e6f48058ea0bea9b
Previous block: 73a718a92b9990a3450d356bd443060d732509ee031e0d43679d0160117f41f4
Next block: 5b1b19d9c733babe0c4b8578b814a7499d3d49c10273453de0e3fde63ee6277e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857824
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f8e3a6f0d560c52966528bfe23bae45e08d23ccfb047b7d1adc55778562c817e
Median time: 1707857823
Difficulty: 4.656542373906925e-10
Confirmations: 1312
Chainwork: 000000000000000000000000000000000000000000000000000000000000074a
Bits: 207fffff