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: 2308
Hash: 28717eb1416af71ae139cb3757635540b4cbaec8cf6e969f25ef26e17e8fd2ab
Previous block: 6be399df769c12f782c71ce88b51b9c8872a55372652d558ff885cce02b22262
Next block: 60bbada8155fe570098b0a7e4dc883804f453fcd242e421fc1c2a6334955ce1f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847271
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 3c74e0950a06be6603f6372b14b28819af90d0983ecc6f60ef07a8b45569e605
Median time: 1743847270
Difficulty: 4.656542373906925e-10
Confirmations: 335
Chainwork: 000000000000000000000000000000000000000000000000000000000000120a
Bits: 207fffff