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: 1213
Hash: 42e62ab354076172e1dc1e07712f41c6c6fe59722d5c029382f28c893f94fe02
Previous block: 67c2d5f31198b811ec0a9a6f258d06107b1b9807ba211b74289153fdd429d053
Next block: 2819381aaa71ccce91dab552821d6ee42366638a3ba9941ca16abb6c515b83ee
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697610
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5a8d960c9aabf63c986b75439ab74143d859214fe102d2bc21e2d5c40a357f38
Median time: 1718697609
Difficulty: 4.656542373906925e-10
Confirmations: 1031
Chainwork: 000000000000000000000000000000000000000000000000000000000000097c
Bits: 207fffff