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: 341
Hash: 7779bdcc6f9fdfe273e93258d033fe2024fe892bccf260b5ab10bb78ed635818
Previous block: 7b40ce355d1c9d79eaede0b1dedc6c23944c7c8d05955e93dd30926ab14d00df
Next block: 7509b7e31454a6e8596b0b0464380cac557fc0b701faba4db7e30b6369027e1e
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597924
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 45b96e972f3c098dcf4d60aa708e38de493fc670ab8749886bec889ac21c2a97
Median time: 1701597923
Difficulty: 4.656542373906925e-10
Confirmations: 1903
Chainwork: 00000000000000000000000000000000000000000000000000000000000002ac
Bits: 207fffff