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: 97
Hash: 536883e66f0e4bbd75248511426cb7503f1a77b7a485471e138fa23942d986ae
Previous block: 27a72198fc61c76a33a0b0d697b84f8a3b70e47e2efc97e8ec4ac5a03410432a
Next block: 3ed4d63b5b07177d5a17b0586788c2faa5b407c00db5569c9cd072e8819fc130
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597883
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 28f1d27acadd0574e7afc6c69fd9ce30a05e76f1c38e575a87db3550d58a64de
Median time: 1701597883
Difficulty: 4.656542373906925e-10
Confirmations: 2147
Chainwork: 00000000000000000000000000000000000000000000000000000000000000c4
Bits: 207fffff