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: 1499
Hash: 1909d5430ada4f4afdc463943b1c8b1cdbd8a9dde56020aa6ef58688c1bcb0a7
Previous block: 0487e8a5b9425a4a28daf0aa381ec89c5558b5057cf6f619c24ed343c62c04ab
Next block: 5077c26aacf358fd1e1b3fd745def50234da269e00f7e5880ac725cf6d8d4ea4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697657
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: a50600fc098cce64ed27d98207711e3c46f7faa69f4475cc5717ddaef2436866
Median time: 1718697656
Difficulty: 4.656542373906925e-10
Confirmations: 745
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bb8
Bits: 207fffff