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: 2629
Hash: 4e63f6ee1ceadeb3014e63369fc44a283c121505c8c10cb08c29911bfced8c73
Previous block: 026c325ac2c9f7865fc1089922794d3ec1bd7e9a1e03aa322b567b9240792549
Next block: 437c6b7d45cd5f51c75f03337f40d5ee4c9be16a23c7487dad702c462e1ddb4a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847325
Stripped size: 218
Size: 254
Nonce: 6
Merkle root: 76063ac1469a187e5efb1bd1f81780ac5c29ad12ec6ba66370eb5db580bc6198
Median time: 1743847324
Difficulty: 4.656542373906925e-10
Confirmations: 14
Chainwork: 000000000000000000000000000000000000000000000000000000000000148c
Bits: 207fffff