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: 2580
Hash: 45c02694a2ffa774c964f399ec2388b042bfe4daffc60deaf50bf0da40753c4d
Previous block: 44a2e545c1dcbc049ab5300b80d449b9e46dc94f3e64adbc67667ea49331b624
Next block: 1f8c292dc6876ec64e9eeb6aa03ea2a3430530b473ee6838543f7c7eb8cd37bb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847317
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8798257d74c3804bcd8296872af6872609779d836a4cc9e775baae0dc562a801
Median time: 1743847316
Difficulty: 4.656542373906925e-10
Confirmations: 63
Chainwork: 000000000000000000000000000000000000000000000000000000000000142a
Bits: 207fffff