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: 1325
Hash: 35bc1c2e6167065595ce3ce607e03719b02874854335fe731cceef2e533f6672
Previous block: 08b25075378b05e94ec2d0f1ad33150a1b49ec798a335eee3449c3179bae03a2
Next block: 424e2ed19b2ac0ad22cad7926398063921b55a9c88522f89075811c90332a5f7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697628
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: a06c869a83a08145c64d1f8d869dce76a396d64a77906c89ac8da9e7c47c25bf
Median time: 1718697627
Difficulty: 4.656542373906925e-10
Confirmations: 919
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a5c
Bits: 207fffff