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: 740
Hash: 7074ae2406b789133b06cbaca107222d1bb9108e9987f4bb2930c4827834b2d4
Previous block: 3531a30c8cc000bde7503cfde410cdd8e038871989b4a405b1244f95b1008bd5
Next block: 6fbba9e867c5d25987072b68d555a8c33c2d743e95bf6e91761ee78710258cde
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864267
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 533960c215e8e39737b3efb3dbd85d01cf8e52c6b92c454eadb976f1c4e18a5f
Median time: 1701864266
Difficulty: 4.656542373906925e-10
Confirmations: 1504
Chainwork: 00000000000000000000000000000000000000000000000000000000000005ca
Bits: 207fffff