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: 1907
Hash: 0417d0689e6a93d9e9a2b11614450e87ecad195e50e7ed2f31d5947f9e843fe9
Previous block: 7ee9e1e7191609cd7b1ba2e0c4a313170d2963caa6ebded8b371dac65fbf049e
Next block: 50b64dfaa5441bf897d5ce4369eeb4305f01b19710bd4cf4705ac6e777da266c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159241
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 6eee6f82d34b61e9d666720257976564082f7bd9e601fc6c58767d83343e0424
Median time: 1719159240
Difficulty: 4.656542373906925e-10
Confirmations: 337
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ee8
Bits: 207fffff