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: 10
Hash: 09adb6bbecc44599a75858dc5410267dbc3058db86205f9c4ecbcf7c0b52def4
Previous block: 33bf5f350a3a9f0ed44bc314c1406ee6b9d4642222fe891a364363c2fe662765
Next block: 0d128abf4e783e30ef4f497750e63197dfe2f2233980630fa3884abf2be31d84
Weight: 864
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597869
Stripped size: 216
Size: 216
Nonce: 1
Merkle root: 42437d20ce58cbce0dffffae68cae2f7370f47026fa7665675b79c421c4c557d
Median time: 1701597868
Difficulty: 4.656542373906925e-10
Confirmations: 2234
Chainwork: 0000000000000000000000000000000000000000000000000000000000000016
Bits: 207fffff