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: 1487
Hash: 79f1ceea0aef5ccbd168ed718a1b46704374ce78e210e704ceab4c9811317e6d
Previous block: 284717312385bef75737aca159a19d212fda010a0ec716ec65df6d672e9df227
Next block: 0f83a14082391cd8eb2b574b693342e9078525312bb55b93ad63ccae6320864e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697655
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b89183ba4061a1648ad36e81032cbb287247644a1233ead93ea7c9a71ead9636
Median time: 1718697654
Difficulty: 4.656542373906925e-10
Confirmations: 757
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ba0
Bits: 207fffff