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: 2602
Hash: 756ecb8a7bcd20ef45692b5e6fdf3ff2a94256248556581d252bc86b7d46b024
Previous block: 023e70b4be18ddaf91d8c9fd1adcfe78a15f33f88a66ef55de8d93e499428f3e
Next block: 47b38f15cf6bdee95e16972b0e71c2ad4b2abff6958d1cbd62c152cbaff7fd17
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847320
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 3163476ee86b99f2b52c6adb87041f5d8cc80988ecaf069e5cd441364b29b545
Median time: 1743847319
Difficulty: 4.656542373906925e-10
Confirmations: 41
Chainwork: 0000000000000000000000000000000000000000000000000000000000001456
Bits: 207fffff