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: 2584
Hash: 3375d221ea80c819c012b4ce00695be5cfaeb8f7f007366be4590b1e34aa393f
Previous block: 1f3985c476463858645958b86abaf15b06d1928a36f1571d70694c41a6ae7e71
Next block: 145c40b975d2127a512933b7813db6e6464c26df0666c83f553146f0ac3a782c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847317
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ff919c4e36fecaa55a787206d2d26d3a4a146299399d8c5f8179136c208152af
Median time: 1743847316
Difficulty: 4.656542373906925e-10
Confirmations: 59
Chainwork: 0000000000000000000000000000000000000000000000000000000000001432
Bits: 207fffff