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: 1534
Hash: 32ae9fcc5f9e9b57bf178da22c0998ee90e7f41059ea0fc7cd1212c83ede1af1
Previous block: 0a46c3a9a065d59fda05115f83517d62da918e03e8d0237c9f2fc9f517284a17
Next block: 314f8699bec87d70a6106994c6a874b71da6274f922112a05f14483050c68bc8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697663
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f58c097ae1b5bb60bae14fd2fbefc2763abb8d41ea5b19524384ad0d8b228e30
Median time: 1718697662
Difficulty: 4.656542373906925e-10
Confirmations: 710
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bfe
Bits: 207fffff