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: 385
Hash: 5c8b7d2267695b98e79472ad0dab3c3a73d841bd9c92587b7b313d84a5ef0fe9
Previous block: 32b7555e9407a1502953c61824dbfd05b1f582444121c9cfd4e7816b057ea3bd
Next block: 1e985fa064829786cc3121e558003d8c1bfde998b12ef81aeab94d4d4d1772fe
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597931
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 6409fca0fa0757bc5bbeddfd3287f38052178bcd7b9db60ca3d476c429233013
Median time: 1701597931
Difficulty: 4.656542373906925e-10
Confirmations: 1859
Chainwork: 0000000000000000000000000000000000000000000000000000000000000304
Bits: 207fffff