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: 1329
Hash: 67da2eb3a07c832cce424529b82090403f48a154c008d7390947d448152c87c3
Previous block: 627cfe28f7435bf9b0da366d1a98682cba112b4bab66de43a0c59aa4f37d07c1
Next block: 78dda38965380711ecc7e1913dc541e80b3855896cf9ca142cc4f97ee78b055a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697629
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 88a15f64d5c369b415d46535acd9c5a79427a7fa12383fc7b8390ba4baf80a9f
Median time: 1718697628
Difficulty: 4.656542373906925e-10
Confirmations: 915
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a64
Bits: 207fffff