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: 204
Hash: 504863158c53cc6c8013555a0a2e18a56d4c8cd529d084fa46b8a34341370efd
Previous block: 61c67bdd99b616ab410e81d97d1221f009f5fa24fd006783b24a28d228f2b13c
Next block: 7ecbb877e492ce7b0adc5efcd5284d882a960e9586821912b6ec3f9649850453
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597901
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 3a4a743f79087161c0bc4a6c264e68ce703b2934c7a542e1d65f0d42bfdabd95
Median time: 1701597900
Difficulty: 4.656542373906925e-10
Confirmations: 2040
Chainwork: 000000000000000000000000000000000000000000000000000000000000019a
Bits: 207fffff