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: 1680
Hash: 296bf96dcea198c9d2b6631a00d06a2f9dfc5d2e32b89c4a866e1b28097bbac1
Previous block: 48017de30b9f60b901733ff734f8739e7dc8cd34c90932936f1773c0a35df757
Next block: 4c4cb8d5eb2c5e7cdc9f90dcd9baf6777e1ad0be115256e45b7799f2d687433f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159203
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c05e60378abb1b321491a04e49a265957c1539966fab9682d37cb42aa0e775e7
Median time: 1719159202
Difficulty: 4.656542373906925e-10
Confirmations: 564
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d22
Bits: 207fffff