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: 2325
Hash: 0cf1c7394c0689a62f05a79a5571a1d38b9003dad8992f32f580d0f6a7324b4c
Previous block: 3abaf0a66789a16e1fb9f420cea7574ea849289ac0f956cf60d80b431bdf72ed
Next block: 53d7df73e12ce466763a3b66b7c98fe835e937d32bb0f0b9c6d4f61a83426b63
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847274
Stripped size: 218
Size: 254
Nonce: 7
Merkle root: 50221a2724fc4d0d2512ee2dc102f67fe6e62f27710ad71f00a6db312911e78c
Median time: 1743847273
Difficulty: 4.656542373906925e-10
Confirmations: 318
Chainwork: 000000000000000000000000000000000000000000000000000000000000122c
Bits: 207fffff