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: 2214
Hash: 53d7b754831fd244e4321a547777328456e3db9216a86bbb8721a0e522454d35
Previous block: 12f1d937d1b43c9679d344bb5f32f4ac9d49a509178dee3b85b2706ebf0dab14
Next block: 5d05b1c964f8f48091218f86103cec58033abdf959f73799e24caed5029f8618
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964806
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 2b0cca6c96271babb928e70ed232d61f9215055bba78bef74ca9b61eac65d33f
Median time: 1728964805
Difficulty: 4.656542373906925e-10
Confirmations: 30
Chainwork: 000000000000000000000000000000000000000000000000000000000000114e
Bits: 207fffff