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: 2030
Hash: 4a5a59fd47f5f51dc360d7eb86670848783b3d37440efbd1b6635456a51b70b1
Previous block: 36ccb871bb89a8a6339831cbb33ad971568beba21a9713bd12ec744c539510b0
Next block: 3eb45098c9ae85cd2c87d3fb7b67aa77180d8ce9c6c1112eb0baa5dc16dc7ce0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964775
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 3b45ea048df25fbca5f67c0dab992fcdac0df5541cf3c390375651c56f1578ab
Median time: 1728964774
Difficulty: 4.656542373906925e-10
Confirmations: 214
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fde
Bits: 207fffff