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: 702
Hash: 3979884f45473e50b1f44a3100bd4904f2d09c81b50212444020c98f2d21ac14
Previous block: 179b66d2a49af47f11f0f6f7b66c3b052a70856d577c914399c9765c7c93022b
Next block: 408f63b728d3a110cb262aabf4be52f53d20d98d4c79448c9e38808e45cc1449
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864260
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 98cc0b61a763c78d17c716a88daaa473f88d9753ec1fab4734717142aedd89c5
Median time: 1701864260
Difficulty: 4.656542373906925e-10
Confirmations: 1542
Chainwork: 000000000000000000000000000000000000000000000000000000000000057e
Bits: 207fffff