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: 1340
Hash: 71f0e6f2282596d469211c2acaa57e011df37d60771b3274dd79ff72054a5c8d
Previous block: 6c00ab3b85e1008a454d825e8fb4f797e02dba5a2faa7351f6b2f57e2d5d0e19
Next block: 0bcb920a32f9aad572175930edb2a36f53c1d42e0049843be77c1d7b9ddba10b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697631
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 24d4e1f321e0cc36be34908f3c13200ece98a000a4258f34b188e99d71e4ce01
Median time: 1718697630
Difficulty: 4.656542373906925e-10
Confirmations: 904
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a7a
Bits: 207fffff