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: 161
Hash: 368b8afa089b0c27f4c6b6490fe149a9fa8386b93fd97bc64aaaaadfe2444c4b
Previous block: 466dc2b1448b1b410f138f7204fe57d1764e61d4d2c498e591b6cfdd87be5466
Next block: 46bd91c9d768f5d59283994bf782ee2c61d447c5690144e2dc97c4cdc9ba8f25
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597894
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: a03ad35401d30ba6b5ade0e9d4bc254c7d15805bc81214218cdf9e978df48e29
Median time: 1701597893
Difficulty: 4.656542373906925e-10
Confirmations: 2083
Chainwork: 0000000000000000000000000000000000000000000000000000000000000144
Bits: 207fffff