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: 1563
Hash: 081d1804938c8e9b6ce620b486bd65986e0d50e05043ed6e09ba1eae2be9184e
Previous block: 5b95af03b16875446382ad679be05b00221a0bbaea7c6ba4b8a4d53fe33f6af4
Next block: 5ba6b3e123fb6d0ccbc71ca208be61cb9f75137b02cc74ea4208d66845e7f515
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697668
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 22def7826a52c13a47b621b4e636c1fe30fd493fba8134a4ea6c31b857089fb1
Median time: 1718697667
Difficulty: 4.656542373906925e-10
Confirmations: 681
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c38
Bits: 207fffff