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: 2307
Hash: 6be399df769c12f782c71ce88b51b9c8872a55372652d558ff885cce02b22262
Previous block: 4afb4013186b8a43f0c2a9c2cd9f3ef979d75473d9b5ea274a8cdc441033426a
Next block: 28717eb1416af71ae139cb3757635540b4cbaec8cf6e969f25ef26e17e8fd2ab
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847271
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 48bb4e4b16f782de2ec1c241efded59891b6bac825ff35cbdeb178fe84ac41a8
Median time: 1743847270
Difficulty: 4.656542373906925e-10
Confirmations: 336
Chainwork: 0000000000000000000000000000000000000000000000000000000000001208
Bits: 207fffff