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: 1986
Hash: 4a955534eb14479710f6ce5f84089206730817dc6c73b2abe2bafab27cf11205
Previous block: 6d2e25b852e4fb3de507198c47e790178c5404b5f0eaf7f3850370e3c7c9917a
Next block: 345d5a847caffca43740f96d7d20ed118f41ca708e8745f24bddaed0dd7b78c3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159254
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3b9375ff6f81cc1fc20479a01ce6ce339d05e22ed6d493d5eadd812d149b5c54
Median time: 1719159253
Difficulty: 4.656542373906925e-10
Confirmations: 258
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f86
Bits: 207fffff