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: 1633
Hash: 5a24a578ed7e5320f613127cf4e133936d14dc075eb16509cf7a5919a33cf521
Previous block: 4e90825744dd7874bc3c06f970a5cbd1b87dd3ca5e8f3e1681ce9c289fde5c40
Next block: 056b7e61f1aa9cac402b801e752b7681f2db7d10d1e26b5e1510dc30161f43ac
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159195
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6886677e759518a4601a32a1d65b596f21ec183680fe2ef33fa362b06a6c1fed
Median time: 1719159195
Difficulty: 4.656542373906925e-10
Confirmations: 611
Chainwork: 0000000000000000000000000000000000000000000000000000000000000cc4
Bits: 207fffff