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: 1980
Hash: 0cdc8a8ea9bb8b3edc8953404e31b5d73a001d2f68ec444bc5a20e40508c47a9
Previous block: 211c8b05a5178f4a0ed27cd48dd2396cd7c324cf078328a84b6b42ffd5ebced7
Next block: 70cb8c54e8902b4d645ebf0f182293be1a090eb69814702f45bf27c54199726a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159253
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 38c13be3eafa913d8727f1fda1a679a5633c39d0df911cc586dca4ff5518ec40
Median time: 1719159252
Difficulty: 4.656542373906925e-10
Confirmations: 264
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f7a
Bits: 207fffff