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.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 675
Hash: 7e0a46ea552a09f4a95f5c0e4f6a8b058b075e5960b5fdbb0a3ec9b829c3dafa
Previous block: 1399ce3b714ff5d63cc936d592c2a67ab19085a00d972145979a62ff7155f65e
Next block: 0085e43cd630149ed3092261182005e6d56e24da47edf4ee1e4405c3c20049ea
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864256
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 1deae45bdb268971b478bbe731ea869a08330b9360595a4cf7ae093120e8b87b
Median time: 1701864255
Difficulty: 4.656542373906925e-10
Confirmations: 1569
Chainwork: 0000000000000000000000000000000000000000000000000000000000000548
Bits: 207fffff