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: 2444
Hash: 47ae88ff51ce82298c2541b75032415a5e6fbf7e4a1c2b27c38c35032e8e6736
Previous block: 5f115c12797ffe89bbb143749a9abc1aff25cac994e7821401c7ef8df66b83a6
Next block: 6464a519b8c721e2e7df4a46910742484a92768f093890da76acb3f5b5ee6e60
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847294
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: ddf12753e747cc33c0c1e85cdf128b6828d9ab32a7105cbf4e41a152545b0aad
Median time: 1743847293
Difficulty: 4.656542373906925e-10
Confirmations: 199
Chainwork: 000000000000000000000000000000000000000000000000000000000000131a
Bits: 207fffff