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: 1697
Hash: 4a6a048ec5ce6276d8faed422937432db8344343103d75c753c6e8edf214a6b6
Previous block: 71095ae6397544308db046dfe75de6b35c269fe85ca981b15e58c999a6fe4912
Next block: 5ad846cc17753a9ce232a622cc149e8f22ced10012f556aa5cf0bacd11c2ae75
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159206
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3d72f91c221d4b7e2f70feb03c94f2a4a540daba8691b578924c49045f14b2e2
Median time: 1719159205
Difficulty: 4.656542373906925e-10
Confirmations: 547
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d44
Bits: 207fffff