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: 2097
Hash: 53129d17d72e028d84aa52a354985ba160f204e4a77e8fe5368cf07105a1f63c
Previous block: 36ecee95f489bf08b331d73150721bb09b27d8c1246fe3650d51adc758265ac7
Next block: 306bc4a7d1f0052bfbacc4f5d89b300c8590b9f42373685e3e4a92c7b0fff9f5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964786
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 1833d2439a712b1927f5c280da78a276ef8e95baa1def7294c617bb4b2c28b1b
Median time: 1728964785
Difficulty: 4.656542373906925e-10
Confirmations: 147
Chainwork: 0000000000000000000000000000000000000000000000000000000000001064
Bits: 207fffff