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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mgqFp9Dhy

Height: 2204
Hash: 4f52ad1e5134930179528684b4886c01ea2b126ce3af1b7bae237d2b25913e50
Previous block: 7ac3d873ffd870df6f0a4f0c0fb898f0ec1f2d9c48bd7ab03b3f1ed3099a69d4
Next block: 2b530b5d07c68d64c820e0982c969c823a819b4528f9f470bb0d61444ef35d0b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964804
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 56c9061653ceed73602c525f270ce772bb6ac4bad076f647a106f3c74da0860f
Median time: 1728964803
Difficulty: 4.656542373906925e-10
Confirmations: 40
Chainwork: 000000000000000000000000000000000000000000000000000000000000113a
Bits: 207fffff