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: 2489
Hash: 73f948f7392900d93c797e3ec1fd514a8b224bcf59d26adfe9f6ee9653864fd5
Previous block: 28bcd75f3a88d3b7de757123c2e03519169104d1ce6e3b0ff7c7e5b9ea4fb2ec
Next block: 54793d07df080a6700dc015d8098cf31c6de329e2152bd91fcd1359baa9c0932
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847301
Stripped size: 218
Size: 254
Nonce: 11
Merkle root: 4623262581fe8e2ad2e7fcc04239de307858874041d186c1eb4bea4325aab9f8
Median time: 1743847301
Difficulty: 4.656542373906925e-10
Confirmations: 154
Chainwork: 0000000000000000000000000000000000000000000000000000000000001374
Bits: 207fffff