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: 1250
Hash: 622dbe025de077349e13f1dbbadc28dbe6c2402d10af52e7e5b765c40a6b715f
Previous block: 4ac94984ec35ecb218a6f89919e8afe3b8e54b173623faa4f11aa46ce086251c
Next block: 230ee58a80acc3c8f4f0a3d8d5b400640710b90f6bb22601a1a36971fab2a3db
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697616
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9c320ccae4e6bb6b3841473ec2d51b26abfd30ec469aae1df54e32719d5f96a7
Median time: 1718697615
Difficulty: 4.656542373906925e-10
Confirmations: 994
Chainwork: 00000000000000000000000000000000000000000000000000000000000009c6
Bits: 207fffff