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: 2072
Hash: 2d8e06d3ebceee06460b27d79a7c4b48ff217b87ca3fec2305e987e1be3d38a7
Previous block: 5f1a95453b7d52c613ae486d5a42eb9ca8aff9a26afb051c7dba13c8df924e22
Next block: 58dcdbc024e00ecbe011bb4edef92a42b8ceccf3bd279c6e742ae79bf297f5b4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964782
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 171d8ed9136d5ea3344b9c839afaad53198d655b02d04bbf866f3da9918bc95b
Median time: 1728964781
Difficulty: 4.656542373906925e-10
Confirmations: 172
Chainwork: 0000000000000000000000000000000000000000000000000000000000001032
Bits: 207fffff