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. mupBAc74k

Height: 2222
Hash: 5f68f413d70bd046f3240ec5974f8cf18b83a24e1b93058e277a5474613ebf25
Previous block: 653f0690ef7b6226bfb3dffe21226002f64be467dcbbe8a91b2be4442264fe24
Next block: 182176dfd54dfca3e033216bbeab13268a0f7ed6176d0b932f61f85a2295e4e1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480980
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 0da39f8647517d0c48aeadae366ac50421ffdc75c592caab46ac9344f6f38c04
Median time: 1719480979
Difficulty: 4.656542373906925e-10
Confirmations: 70
Chainwork: 000000000000000000000000000000000000000000000000000000000000115e
Bits: 207fffff