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: 35
Hash: 4c84d96ffe9dc4c117d09d5df23afd5d5a9202c1a2b871b98c2ec126cd913721
Previous block: 0f31dd8832c36fb086c89211b0b4d0b92136fa746becf71edce5047b006f03b4
Next block: 66718ec59a466458d17eb44cf15c26227bc07388e123ea0d8654cb41c94ec9ce
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597873
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 62c42f41aa3cf571b6b0a4507087738686ede2d9a40594b4394d33c3142f8ec1
Median time: 1701597872
Difficulty: 4.656542373906925e-10
Confirmations: 2209
Chainwork: 0000000000000000000000000000000000000000000000000000000000000048
Bits: 207fffff