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: 194
Hash: 246bce2ad5cd075e473e014e8bf07782c7c526ca07bc2867f911298208d5fc73
Previous block: 62fb0083a03ec02205ecbca55f21b50ee9e1f8879eefc4ca76467db5cfc260d1
Next block: 7590a94ef0815fd60a9dd825540f553ab92a05c982cca16de9b9bb417578307f
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597900
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: a4c002f52b1f1688c50a667fab68482a9041e2b6c9704087a22c942fa3ca91e2
Median time: 1701597899
Difficulty: 4.656542373906925e-10
Confirmations: 2050
Chainwork: 0000000000000000000000000000000000000000000000000000000000000186
Bits: 207fffff