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: 1660
Hash: 2e6c77549c39405b9f4a028af5ba50f407695cde10a739565577c4ce64c5afe4
Previous block: 6a1808b469947dda1fcd1ec799c7148a7056f2a9b69665cacd314eea57d028f2
Next block: 70b83d3d791b910ed6e10d2357df4599c1968c5b643d07e37f8afc7f72870be8
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159200
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 9624d81b8f4d4f53ff7136f5bc8acbc3d76a2fe80218e3d459749a9e1000dd4b
Median time: 1719159199
Difficulty: 4.656542373906925e-10
Confirmations: 584
Chainwork: 0000000000000000000000000000000000000000000000000000000000000cfa
Bits: 207fffff