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. mgqFp9Dhy

Height: 2193
Hash: 1e5533bef1de0722d9096f1719887704fb3669fd2278e30db30caa0a079eddff
Previous block: 5b8f3bb38ef723156c178b22dde6d36a61f25ef96fad7b6a5eec5d5142f2d3eb
Next block: 134518b5efa5991fe48b91329f7e30f9298735f7cae913384a93f7082251c250
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964802
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e87d1aabec9321d0f29d7a3b7c228765922a1b583e7d560ef8f9e81c09fafed8
Median time: 1728964801
Difficulty: 4.656542373906925e-10
Confirmations: 51
Chainwork: 0000000000000000000000000000000000000000000000000000000000001124
Bits: 207fffff