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: 1436
Hash: 2ffa9a962156f5743d3ec808d5093d831f94634c56f421926a602e57e8b93456
Previous block: 0236c942c11843654fedf9255c95535959f47df8e544b4b5e9f6522417952b5d
Next block: 21c81b7ac73aa2244437e7dd2b96db935abd780a9cfcfde26c8618a9d676737e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697647
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: bacd90b288775cd388c5f1177510ec90d5b48737a8937af02c55bd100abab41e
Median time: 1718697646
Difficulty: 4.656542373906925e-10
Confirmations: 808
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b3a
Bits: 207fffff