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: 534
Hash: 7d3519d0692f97a59d2316c3e3cea13cc30e786ab709bb206b04b1e309b37d61
Previous block: 62de2fff15563198e2226e8d31302c6c5ac97c6dd4651e9ab6d5b754061b8279
Next block: 6d87be82b74a36734631e834431ea31cc850a1d93b170d9a85ee02e1bc6ee63b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864232
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 88c3254d5a58d70e0b7f7ac8c9f42b61c31f74629b55d50c32ad29a6ba8c7cd6
Median time: 1701864232
Difficulty: 4.656542373906925e-10
Confirmations: 1710
Chainwork: 000000000000000000000000000000000000000000000000000000000000042e
Bits: 207fffff