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: 2529
Hash: 7a91823a7f83d6a7c551a936058bdae86f4ddd1f0861e09bc792715b379edffc
Previous block: 5d02c75c14aae4946682cd6ac43181c9c7be65b006e86ce4d1044fea6700abbc
Next block: 2a576870576ea2abcaa3c892079893baa63b902706b19aaf8b1c031ea5488c84
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847308
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8bb1207eae49a22cb6db5f866385d4099cf57b12d346b47353f96576d4ce5335
Median time: 1743847307
Difficulty: 4.656542373906925e-10
Confirmations: 114
Chainwork: 00000000000000000000000000000000000000000000000000000000000013c4
Bits: 207fffff