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: 934
Hash: 0e3b5cbcd09a5b408a78892cc5ef5e50b0d992ba8c4c88002d5d4331f5d673bf
Previous block: 5b1b19d9c733babe0c4b8578b814a7499d3d49c10273453de0e3fde63ee6277e
Next block: 508e752121bccb3e60c06c13410e7bb048d2ead3c66c3016f4be25f5e1cbef56
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857824
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 616bde57c8d8362e94c6e6df797889504e2d5bf001bd86212156be62fa82763f
Median time: 1707857823
Difficulty: 4.656542373906925e-10
Confirmations: 1310
Chainwork: 000000000000000000000000000000000000000000000000000000000000074e
Bits: 207fffff