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: 1187
Hash: 2b26047725cea46c885ab172ffb2f6462ea750ed0494056479ad65b23b4559ca
Previous block: 6a73405a87384e13816c90263ca93936669d9e3e9cdcfad497cb60cfb0f95026
Next block: 2479c6547a81ad137bd376dfe46f97f37814c769daf02bc4c799c48956cac4f1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857866
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 98dd0d22b104f9d64211927ff350bdb0dc4c30a726b50a30127ed1061b44303b
Median time: 1707857865
Difficulty: 4.656542373906925e-10
Confirmations: 1057
Chainwork: 0000000000000000000000000000000000000000000000000000000000000948
Bits: 207fffff