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: 1283
Hash: 434c9a16c4798477450a39e7ca5b79429dd2d5acfc45c01bf93a3336340eed04
Previous block: 41d8a09aa1ab92417559ec3c05e91f2c8aac7c82f23906131286c404cd91f3bc
Next block: 21ec81d78e32d2fd3f9def467403dea8526489801921a4c8b828f8f80fa7ae0f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697621
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6df17b0c9e756452952a2ba0f48ae0e8868a3c13429a403b8f785195aeb7e4f5
Median time: 1718697620
Difficulty: 4.656542373906925e-10
Confirmations: 961
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a08
Bits: 207fffff