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: 1692
Hash: 1ea8414ca5bfb8bf9a92c0665bc6630b863b8b495ac4ed2389430bfb7d4f21a8
Previous block: 4b653ea8ed9335386bf85ddfb4ec0ec9634e3ec7de692559f9fd7cfceb30cbda
Next block: 74177601c6d222b3ff5b50d994328feffd75bfe79dded06eb68273a4d5e0541c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159205
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 0febc25176ac7e64dcfe52c393690957287ccd2bba8143cfa4cd3dcd5701f1d0
Median time: 1719159204
Difficulty: 4.656542373906925e-10
Confirmations: 552
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d3a
Bits: 207fffff