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: 2587
Hash: 090b1b3f4ec5eeb57a2e5471bd41da08d756886d66c6178e221624d833fb51e9
Previous block: 07f927e32c1bcf5df38d0976b3ab1d2cac5e3fbbb3325b99845c905baf2e56e3
Next block: 78b818b21b386bb7026bc63745cf6994e4129dc03b114faed05c9faa7d3c3397
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847318
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 47b370802a532533c821b1dd023f2ebbd91261b03b4fde60eb55ed1ec82d9699
Median time: 1743847317
Difficulty: 4.656542373906925e-10
Confirmations: 56
Chainwork: 0000000000000000000000000000000000000000000000000000000000001438
Bits: 207fffff