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: 1313
Hash: 743836f0ecc709f5930c5f1786d4e640ee9ab98d0982749a6c75e6c71b7284c4
Previous block: 523623302b2e05be2e43acbb538b52f853e58611e55caf85c1aabe0635cd5cc7
Next block: 4e49de296cb542e9ffaf59a096d6ddaa2bfd73d6f127801f31cd8563454308dc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697626
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ec91d2833f0927cc1d3dee5bc89daab27253bec56757b7fd5c26b9d6d3d1f4c8
Median time: 1718697625
Difficulty: 4.656542373906925e-10
Confirmations: 931
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a44
Bits: 207fffff