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: 864
Hash: 7683c5784d3cb7c7d3e590c0698188b66f244156f4031cd4fd604f8bc9d570e7
Previous block: 65c086960875df50a75cb57cf684e0fc023834050d7ef15f9b67fcfe881fc785
Next block: 5515fceaa21339870eeaea6f9f7aa89c7e52d5f2c1aaaef236dfc95504735f8c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857812
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 377ca24b0b3e983271f4c6258e42255bd061df940e2b0fc70af48e91f5e1e511
Median time: 1707857812
Difficulty: 4.656542373906925e-10
Confirmations: 1380
Chainwork: 00000000000000000000000000000000000000000000000000000000000006c2
Bits: 207fffff