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: 784
Hash: 21081501323db2de78095accf593dde91dd79bc07844f7fc59abc4a23c4a5a7b
Previous block: 11d937c49878903d2b86ba3b5b5e99d279a1f484d05321034224d929a5e3b4aa
Next block: 231c87950e83bf5596dbc0bbd2d65e36b9ac7edd8492f163bcdaaaecf4928418
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864274
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b2cfb03a1a01df6a05790e43a4c10f57ac021383f75b419526a193f584846cca
Median time: 1701864273
Difficulty: 4.656542373906925e-10
Confirmations: 1460
Chainwork: 0000000000000000000000000000000000000000000000000000000000000622
Bits: 207fffff