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: 406
Hash: 7e7275c79dcad370868e9eb1a3f1bfb41b00403799ebb1c0cf64e884357aa0ac
Previous block: 3dcf31a8b33c0c448dc326ab8d5b6ff138d4a2654bf07616655403393ae67126
Next block: 1083fe6b181a8134214f0065d2516fdbdfae6b4a12cb4b6bff2442b62b843ec2
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701864211
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 12310eee123b7d6a56f6586f7666d8858c4d6a29364171b3359d4157f19a2d15
Median time: 1701597934
Difficulty: 4.656542373906925e-10
Confirmations: 1838
Chainwork: 000000000000000000000000000000000000000000000000000000000000032e
Bits: 207fffff