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: 2431
Hash: 4949ce014493235f2d384d6ecb5568770d3a0b8542422cc08d3b5aa491c95806
Previous block: 57c2c092d3227f3f46a93772a5e1f9001baabfcca6f00573f6e11e1aea527fef
Next block: 1a096ff679cfd47083c168e1dddfb5172c074760bf6fb99bff88cbaada5138bf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847292
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: a79f53cd436e66a9d5eb944b488069f8d2e8802b5ae1343bf210ba3f37477dc6
Median time: 1743847291
Difficulty: 4.656542373906925e-10
Confirmations: 212
Chainwork: 0000000000000000000000000000000000000000000000000000000000001300
Bits: 207fffff