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: 23
Hash: 6c60adedf2e33cf5bfcff27164bd266db987972659c7e1d5c68caf6fb777f2a6
Previous block: 13a1b9e2d42ee5a48437eafd975aeb08d5822925e62aacb911d6723517cd12fe
Next block: 0d34ce1d2a0b3917b62db79d9dd91f71ef43b4f24fe50c713f171006d5acf7cc
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597871
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: cdadf711553a396c86aac205772bef7b6d14ea26f2b98d01a1b00cd10af20204
Median time: 1701597870
Difficulty: 4.656542373906925e-10
Confirmations: 2221
Chainwork: 0000000000000000000000000000000000000000000000000000000000000030
Bits: 207fffff