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: 793
Hash: 49d69db9cc4180ff3b44bf9520d2bbf34d1efaf52fb748e3c828766d3e45d57a
Previous block: 1d87d59a0629b21077215a46bef7b92d1412cbc6f52bb8204c2d818fb7a78e0e
Next block: 2c6fd61af3cd4ef690805a31e0a973ee4377fd675e28cfa9faaa57a3b01fb800
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864276
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 2f82717f9957f3d9a70efce0c60edf3c48658a8cdb3c953ef8033e14727dc040
Median time: 1701864275
Difficulty: 4.656542373906925e-10
Confirmations: 1451
Chainwork: 0000000000000000000000000000000000000000000000000000000000000634
Bits: 207fffff