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: 1013
Hash: 52a648833dc792d69e913a7151dbd735537b91f3a185acea00b3efffd5b120c3
Previous block: 73f9806f5ceffb4ea1931d863286f57f4216461db057e242c723c2ee9d71c092
Next block: 10a92bd1e56808e5811fb43792fe9437deaf94b532ff83aeed02c0b04e63248f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857837
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: e60315a8a972b9ad0c5880ca30ee62244ea2de42e31a9d3dfc1225424f7fb853
Median time: 1707857836
Difficulty: 4.656542373906925e-10
Confirmations: 1231
Chainwork: 00000000000000000000000000000000000000000000000000000000000007ec
Bits: 207fffff