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: 2476
Hash: 2d08868a118656b93c08c7948d34a352c77aad55c4962f1d262ab95b17ed1c0d
Previous block: 707ec5e22a051ffb64e13f8312f8ab2a1a528d7056411f5ea5e3fd4877509f4d
Next block: 5193268f6ad4ac2ede00e8a5ab81901d8353a7e3a3bfd585d2cee090454bf5b4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847299
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: dcd0739284e533768cd12ba6bd614ddd1fc7d8fce2644eac2dacb48db01be114
Median time: 1743847298
Difficulty: 4.656542373906925e-10
Confirmations: 167
Chainwork: 000000000000000000000000000000000000000000000000000000000000135a
Bits: 207fffff