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: 2448
Hash: 2a8e5e7e73d7cd3aa9d821758c30c00fcce2fc931aeced175355cdd514fc3a81
Previous block: 3862ef5378fa3808e586adeed97e8c7d54eb0edca12491a28944c160e31f0b73
Next block: 389b7f77ccd67ba743bba73b6b278e476202f85dcea2184d2afbb2ea77a50c86
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847295
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 55620eddaec34bd5bdc964c78a31fa12f690c690d7d69c4086cc974a3c82eab8
Median time: 1743847294
Difficulty: 4.656542373906925e-10
Confirmations: 195
Chainwork: 0000000000000000000000000000000000000000000000000000000000001322
Bits: 207fffff