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: 1382
Hash: 24473f5759526b45f9f79765739aeb43621fb541bfc3e8d381b61fa0a268e4ce
Previous block: 2011611bb12a79607693486e77b96365b6dcb1bbac739f3abc1190fb60a0b6b4
Next block: 12eb4b8ddeb61023ebb02b0d783db2139d079671650f4426dfad49208cd2f3db
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697638
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 95cefcfd433bd5b5426fffd1cd000c581868986d08f5813c0360ba04ee5467b1
Median time: 1718697637
Difficulty: 4.656542373906925e-10
Confirmations: 862
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ace
Bits: 207fffff