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

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

Height: 1594
Hash: 29609ed184d172baa055ee119b3cb1e9d0dad4eb305fa3cc5462d6590208bd6d
Previous block: 0905c99ba86dc8d5855b86133812fb59ede6da3d585b645d2efe8a14509967ee
Next block: 1cb50b952702889b7938e57864a0ed65a624e07d2fe5048a7343a00c0839d997
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932135
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: daa20d7193ed678f8003c22ba45b7cf6e1b58a0be29c01448750ad74c317beac
Median time: 1708932134
Difficulty: 4.656542373906925e-10
Confirmations: 15
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c76
Bits: 207fffff