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: 2078
Hash: 3616aab787854bf6c8f209760d719c3c827583212ecb90eecb658af7a6aec255
Previous block: 508454c7b6d14146aab071a466051feea0c3381d8fbe69d0a89cc197326867ec
Next block: 66c4c2a2441414e5197fe2781d123ff71cd6b8aacdfe0adab8cb0ff7cb772d9d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964783
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 47b28e31da5aa4530a0dcfe8e90dea142e0e5d7d4fb18c53efa13c7b0524f5d0
Median time: 1728964782
Difficulty: 4.656542373906925e-10
Confirmations: 166
Chainwork: 000000000000000000000000000000000000000000000000000000000000103e
Bits: 207fffff