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: 2375
Hash: 25aee4b26561172d666d96b66c6db0bfa578fba0129f591d05eeec691168a193
Previous block: 5511376bcf714c19dfedac83b4f2ee2962863b9b688aaa35d99d78864f7fa217
Next block: 41da2941b31c8fa3888d9d09b8214a40a9d6bca865e337933adacb2b62315e8a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847282
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 037e2cce85bf7ab29acbffd3b8adfa761371f6f78afcc4f13818c64ec26c1f47
Median time: 1743847282
Difficulty: 4.656542373906925e-10
Confirmations: 268
Chainwork: 0000000000000000000000000000000000000000000000000000000000001290
Bits: 207fffff