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: 917
Hash: 7588a0a7b1268f0cecf58b8e8b081abebcfecb952677c06a2c097c9ea5709612
Previous block: 21e9ce665bd437063ed618cd3e0bd91283fdc1d056eec48cde10f3e408caa6f5
Next block: 6272143e0383771870c666cc14cdc6ac101425fad7c0c96e1c665c505500a604
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857821
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: edce0908f4281bcadc00df27a11b493f2dac7d27de45be7bca0a6260acf9adea
Median time: 1707857820
Difficulty: 4.656542373906925e-10
Confirmations: 1327
Chainwork: 000000000000000000000000000000000000000000000000000000000000072c
Bits: 207fffff