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: 2056
Hash: 3e2acc39a953e7f3fe955077e18f6ee4378bced207ce8f56acfa884294d52fa0
Previous block: 4e5e3178d255a7285b27879d0c861b2eadbb6e817cc29177fa6483bc5e107d96
Next block: 6b6451935d77010f389e95d05ddae2873bcef5a31b26ee05ac19c28f60742e43
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964779
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6807d0476599d02f8bd10fdbed6d999832437c79caf0fb06ed8986e9d2f23b45
Median time: 1728964778
Difficulty: 4.656542373906925e-10
Confirmations: 188
Chainwork: 0000000000000000000000000000000000000000000000000000000000001012
Bits: 207fffff