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: 1284
Hash: 21ec81d78e32d2fd3f9def467403dea8526489801921a4c8b828f8f80fa7ae0f
Previous block: 434c9a16c4798477450a39e7ca5b79429dd2d5acfc45c01bf93a3336340eed04
Next block: 40f219d304128a8666d3dc2798f5a1cffb4420244e93ed30b7c1392e48a6ffef
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697621
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3b9190a7ce12fe41de1efce92f09c54f74dc52687a2fe60f886d2d9532be4694
Median time: 1718697621
Difficulty: 4.656542373906925e-10
Confirmations: 960
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a0a
Bits: 207fffff