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: 536
Hash: 63f11d175ae45f65ebed6aa5187a54226729b14fbdb8ee70ed342c6b3babc7de
Previous block: 6d87be82b74a36734631e834431ea31cc850a1d93b170d9a85ee02e1bc6ee63b
Next block: 0c01f0411dd1f0d7e6c2ec766bf2bf921924ffc9ae2b8b7b53973f3abde85b4b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864233
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: bc8779ee2a53fe4153bbc8dfb6264918d0bb48385f3fffc43b3e961516a58023
Median time: 1701864232
Difficulty: 4.656542373906925e-10
Confirmations: 1708
Chainwork: 0000000000000000000000000000000000000000000000000000000000000432
Bits: 207fffff