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. mxMfLjAez

Height: 1611
Hash: 5953b60b93bdd91b9ffb2ccf9f58e2709ad132b6470378690913712f7eab0eb9
Previous block: 2c568a888d59b271f7df2b4d3dd11e5dfe6c269ff81658a34c5ae5b14786c5ab
Next block: 7e7d73ef1fccc1e2233b029fdabb1009a70fcd42cb7e54d955adfd424397e6ea
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159192
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 2c38835b87c9ea3cc3f79d75d8b8d05079798926c11aa83a1679de9055747eae
Median time: 1718697675
Difficulty: 4.656542373906925e-10
Confirmations: 633
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c98
Bits: 207fffff