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: 2547
Hash: 7f2dcc4960aa6f9ef752c8604f67c459aeed5385d54ed0929c37c8bf12f89b12
Previous block: 0f1c6d88e8f1a65fdcbf122d46740c10765c72ad0cb506b1ed3457f1b98c4e60
Next block: 633f23a198489c177a83ec2cac5766114d5bf600e4354a6952a5a243a5d291f1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847311
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 461533f54d440a2584ce2591101b80dbd57f78ec051ca0ad7626a2c83e256854
Median time: 1743847310
Difficulty: 4.656542373906925e-10
Confirmations: 96
Chainwork: 00000000000000000000000000000000000000000000000000000000000013e8
Bits: 207fffff