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: 1
Hash: 05a6a908c71fb92ba99adb31eda2451422ce913f7365685163f8c1a1a268c7c0
Previous block: 0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206
Next block: 3602bb0b8fef195943f203846cc63fc09d9ef70a94918f9faa58ab59d2560f3b
Weight: 864
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597866
Stripped size: 216
Size: 216
Nonce: 0
Merkle root: 27f37e76d62d7f085bb3f8da8c6adc15b405b4601369ff9fdf848db7b024096c
Median time: 1701597866
Difficulty: 4.656542373906925e-10
Confirmations: 2243
Chainwork: 0000000000000000000000000000000000000000000000000000000000000004
Bits: 207fffff