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: 6
Hash: 1438a652ec91940086a71057fe517b6040b97535d96556231f27d69b30ef74ae
Previous block: 180e81b81478b233ee9d7363d95889a24856d8572995e37d1b3f8f154fad381d
Next block: 440900e1dd1958dc25f1b36bf8c2640b0b22b3e057b489aeae1099d16eb0707d
Weight: 864
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597868
Stripped size: 216
Size: 216
Nonce: 5
Merkle root: 12f366bbd2c4ce105f0a9187b66a433e00c9ddb4a4ea8972de4b9e06d4aff1ab
Median time: 1701597867
Difficulty: 4.656542373906925e-10
Confirmations: 2238
Chainwork: 000000000000000000000000000000000000000000000000000000000000000e
Bits: 207fffff