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: 184
Hash: 625e44c3c01e4ed049c0cf2575a3d27b2c1050cbdfdf947c14901b93fd19acbf
Previous block: 6db72b67b2eef821db2a4dad0e4a8e40d917314d027e1372c70d7ac503a9a487
Next block: 29ae144576172c9560f89b0c437db98d5d44091e2c8d3bb3c5f80d91a191a37c
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597898
Stripped size: 218
Size: 218
Nonce: 3
Merkle root: e7bdb0facd36f2604b1d1ff6fe1ba9fe142ef7537713c080a7c3627455f864e4
Median time: 1701597897
Difficulty: 4.656542373906925e-10
Confirmations: 2060
Chainwork: 0000000000000000000000000000000000000000000000000000000000000172
Bits: 207fffff