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: 206
Hash: 0402f32c6ab3eecd03e1b6a69526028bde7a65f1cd71fbee3d8b09c37ee950c5
Previous block: 7ecbb877e492ce7b0adc5efcd5284d882a960e9586821912b6ec3f9649850453
Next block: 7aa8b88c2da0e1bee95abd356b1eb2ac4483e40d16c8c7391c327c81ea3dd7a9
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597902
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 812e7592429136075e4814bf9b694afe8027e760759c35d483b4811d90a31d08
Median time: 1701597901
Difficulty: 4.656542373906925e-10
Confirmations: 2038
Chainwork: 000000000000000000000000000000000000000000000000000000000000019e
Bits: 207fffff