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: 2189
Hash: 6bb993e818e6f1283e092957bf13104b991ef96775c44b5dc40d73318d62ec71
Previous block: 686819fb835a683aef7ff4962c5a82ebb723a79f936c75f3060237955bd12c71
Next block: 4ad99c19ec85648911af0891473bb10d0de497dee23178acf5d1563ce28cb349
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964801
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5ea63998bf6fb818498431133a4797fcb5242cfd5c374b9bc4c7cd0680d8c277
Median time: 1728964801
Difficulty: 4.656542373906925e-10
Confirmations: 55
Chainwork: 000000000000000000000000000000000000000000000000000000000000111c
Bits: 207fffff