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: 981
Hash: 69f699cce0660b0db9a35990ab2be42b4f3f361d0417ee88e1e83ab58f9a1faa
Previous block: 3bedff17b0360702123cc21bab89d680acb34bb5c113f3218c7c920fe39ff5b8
Next block: 354a4e57696da9f8994ae07c8cc5ac4d34f55be1e992c14a2572479778edde0d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857832
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: c5f9016c28f969626a137c2262f48bc80bf39182907355b2cb587202a33a03c7
Median time: 1707857831
Difficulty: 4.656542373906925e-10
Confirmations: 1263
Chainwork: 00000000000000000000000000000000000000000000000000000000000007ac
Bits: 207fffff