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: 968
Hash: 192519df204b1a943996a6dd1fd4c9551d34eb2e1c87bb92f56be8bdebe80a76
Previous block: 3d9b2efc1af1d94111b751925bb2a4491f4d0e1854b3f0807e5bc99098339af7
Next block: 63e7b2f0f83bcb26e1325a61ba540386883c12d6c242c7a9f93ded54530ae832
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857830
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 80aeb32878a27218e334641dd49e88fbd4f3ad29107fa2105c0989d4d76ca4a6
Median time: 1707857829
Difficulty: 4.656542373906925e-10
Confirmations: 1276
Chainwork: 0000000000000000000000000000000000000000000000000000000000000792
Bits: 207fffff