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: 2488
Hash: 28bcd75f3a88d3b7de757123c2e03519169104d1ce6e3b0ff7c7e5b9ea4fb2ec
Previous block: 40553d836d17e639d9a82ea5afb1ce530addda37e0c47acb45266fb3d45e2f95
Next block: 73f948f7392900d93c797e3ec1fd514a8b224bcf59d26adfe9f6ee9653864fd5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847301
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: e2518213c16fb61285373c587d62f9ef2ff0ee073eb35c2bf4a422d043c98773
Median time: 1743847300
Difficulty: 4.656542373906925e-10
Confirmations: 155
Chainwork: 0000000000000000000000000000000000000000000000000000000000001372
Bits: 207fffff