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: 85
Hash: 601bb6207f03f3395d5d2b16db740339f8cd0d12773193832ecf9b44e6715e2b
Previous block: 0bf8f165e3c402467a8b7a86e09d006eb020245de8f13abacf3bde1c01e0bdcf
Next block: 676ccfac183b80d400d19bc53233ba3489be1074570a30327a7102866b7ec9d2
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597881
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 4096f5248aa03d1c64bd714b89e73395cb0a8e1d40516d2ded2c30c8fea785db
Median time: 1701597881
Difficulty: 4.656542373906925e-10
Confirmations: 2159
Chainwork: 00000000000000000000000000000000000000000000000000000000000000ac
Bits: 207fffff