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: 386
Hash: 1e985fa064829786cc3121e558003d8c1bfde998b12ef81aeab94d4d4d1772fe
Previous block: 5c8b7d2267695b98e79472ad0dab3c3a73d841bd9c92587b7b313d84a5ef0fe9
Next block: 7353d4d619bcaf5a88f1c6c79e5caf80f2e9d92d4d9012a40b3681c951ad97fe
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597932
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: ad2bc8a9303322659cf058afe6c7604213433327d0558b2a2e0e200a12b94cef
Median time: 1701597931
Difficulty: 4.656542373906925e-10
Confirmations: 1858
Chainwork: 0000000000000000000000000000000000000000000000000000000000000306
Bits: 207fffff