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: 1848
Hash: 376f1226de2a7701882f9084a808958258fa47fc2a4713d8824016b1f43bc4a2
Previous block: 4e94847f41fe2bdb77d963b322f127f16b5118045a323f6ca70d10cb97e802f7
Next block: 1bdd6f7b9a25a7f53e693a3f5364a00ce09b92996718c29c1f2f377d673bdc53
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159231
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: aacba73e19162c87f5244164b317beccaeed24c567461015697489829d8375b6
Median time: 1719159230
Difficulty: 4.656542373906925e-10
Confirmations: 396
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e72
Bits: 207fffff