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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2311
Hash: 6e3686ca46e2e87cdd617f30dbee89c3228bf61796f7d1ea2eff8cc70f442d4a
Previous block: 3c737308be68b979baf4ebb147d04512d9f67b656515de3123859ed9db608ebe
Next block: 6e2d61d032af9e88d56a0135c99337999165d10b64a13a14691fdd935596180d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847272
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d7ac5b7ee057b5fd7ec227fdd0c51998f8a868158f9d01ed7c2e6761c125e58b
Median time: 1743847271
Difficulty: 4.656542373906925e-10
Confirmations: 332
Chainwork: 0000000000000000000000000000000000000000000000000000000000001210
Bits: 207fffff