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: 792
Hash: 1d87d59a0629b21077215a46bef7b92d1412cbc6f52bb8204c2d818fb7a78e0e
Previous block: 1890926f4d77e0ffbdcf10893cc68867958b7fa4402de19953a5c835c8ce69ad
Next block: 49d69db9cc4180ff3b44bf9520d2bbf34d1efaf52fb748e3c828766d3e45d57a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864275
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 16d1b7960309597541fb29f5ebfeae9c78c5d63c675329dfdc282aa434fafe11
Median time: 1701864275
Difficulty: 4.656542373906925e-10
Confirmations: 1452
Chainwork: 0000000000000000000000000000000000000000000000000000000000000632
Bits: 207fffff