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: 915
Hash: 10f1bd4604060f60eeaa8d4360c0f38fe8116f976f84223a56e360b12feefb4b
Previous block: 1ee0270233dd1ad0c7843992a4f58d4cd87e5d19713f6c61110b1599a0f5a835
Next block: 21e9ce665bd437063ed618cd3e0bd91283fdc1d056eec48cde10f3e408caa6f5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857821
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 6cca6530a8035a441c6025957d2de2bda14c4e992ba88f188efecfa9ec2a09bc
Median time: 1707857820
Difficulty: 4.656542373906925e-10
Confirmations: 1329
Chainwork: 0000000000000000000000000000000000000000000000000000000000000728
Bits: 207fffff