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: 945
Hash: 4144c2dd3f1b67333b1d3f0bfe40aefad252c7f05392133375bed97a3b0eaa8f
Previous block: 48d4d613c414369cc7e71effbb85827b9cfdd0f88b51228343b439ef3c650a76
Next block: 7e795ec0c3baeae5790d6118d123c9ae7eb61d5d2961668d269fe204b04d88b1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857826
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d1e9909014a972802e064db6c492fca9b51137a12d1b833a0c6443f7465d62c1
Median time: 1707857825
Difficulty: 4.656542373906925e-10
Confirmations: 1299
Chainwork: 0000000000000000000000000000000000000000000000000000000000000764
Bits: 207fffff