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: 1757
Hash: 3b3dd28ac66babd27d685d4684c41f7a4992246574f76cd9cd9afca4c9662a77
Previous block: 30823ec40a3902d68d32dd0f6e042265962822e175f93dda181de8f16dcfe603
Next block: 5b8ce90b0615bb98f1b81a8e900c55900eb18cad552b778a2682980bd4f2f3df
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159216
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8a1946b11f40dc17717194106d555ae3f5814ed48386ff4968dd74763ed39dd2
Median time: 1719159215
Difficulty: 4.656542373906925e-10
Confirmations: 487
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dbc
Bits: 207fffff