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: 1338
Hash: 13cf611e7bacde33624bd6ec963709f5601f69453f63a40d5239d91fea9821b3
Previous block: 648322f5163a0d4d6ec5c77a0c9d2c2bc2084d750b5ba09d870c93031dd801bf
Next block: 6c00ab3b85e1008a454d825e8fb4f797e02dba5a2faa7351f6b2f57e2d5d0e19
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697630
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: eb29c3881e7dea62a4689b7e97a9595ee9e5a1b98fb1f8a1fa9093b7072607cb
Median time: 1718697630
Difficulty: 4.656542373906925e-10
Confirmations: 906
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a76
Bits: 207fffff