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: 1385
Hash: 007a377574dd6df7cd38d8b22df5a596fac62b2f802f3e86cbcae2f4e3e64b23
Previous block: 07f727f6c65451500b3061ad1034d219fd91a07560caba4fb2bbf332e40b3f35
Next block: 651c08cb781067264754c3cdee3d27c4e2846b7e15c301debdcc1cb38da57553
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697638
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3be2832609f8a012f3a8071dc6089f836780573553484dea9f0815d314d578fb
Median time: 1718697637
Difficulty: 4.656542373906925e-10
Confirmations: 859
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ad4
Bits: 207fffff