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: 2530
Hash: 2a576870576ea2abcaa3c892079893baa63b902706b19aaf8b1c031ea5488c84
Previous block: 7a91823a7f83d6a7c551a936058bdae86f4ddd1f0861e09bc792715b379edffc
Next block: 6a1d0d1af8d2003231b1c34535c5a1aee0843e326acd6ae579b100ef710afd26
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847308
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 36798b18ba9eb6cfd1b40313a96c5c0b5a1df690fb6a012912a1692a66e207af
Median time: 1743847307
Difficulty: 4.656542373906925e-10
Confirmations: 113
Chainwork: 00000000000000000000000000000000000000000000000000000000000013c6
Bits: 207fffff