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: 1019
Hash: 2082072edf69f1873f93458459388efd72b67f6293252fa7d69ce4bc9f1c182b
Previous block: 541b651d40b7929f2ce92632882a9a9a5a3e37b2b106cde8fa4468b77e004f61
Next block: 634a8c2df1d949168be336b9b3570753561188d0d8accb0b6f38a06e0b59ab9d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857838
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 51a1b67819a39bf06c95fdb27b1cbb9f0842546b4f287ee19e08c06225153956
Median time: 1707857837
Difficulty: 4.656542373906925e-10
Confirmations: 1225
Chainwork: 00000000000000000000000000000000000000000000000000000000000007f8
Bits: 207fffff