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: 1120
Hash: 65e7a1d99721962b6f4defec1e94f8032ac88a1a072ac757780c84c05478d1fa
Previous block: 70a95be419bcfaa2c1a55c51cfa1c37e22cffba0d449b5d7482c79b12d3bffff
Next block: 375d1a806fedeb1003eac9e7e85dafdfa19ab1c9a9bc8819533a48524b35b44c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857855
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 19dcd87da49d6716e2b7d856ab3e4a905e6c290822a370fe23dc4b2d9d766c55
Median time: 1707857854
Difficulty: 4.656542373906925e-10
Confirmations: 1124
Chainwork: 00000000000000000000000000000000000000000000000000000000000008c2
Bits: 207fffff