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: 1586
Hash: 7578e621bf93cdde0f0108b61cb1bca3a34b33ffbf76b30beaffb2aef3e3b697
Previous block: 11b615b14206ccf30802d087e628c1e20ab2b88ba25160d9e259c7c4450bd25d
Next block: 607c605844567fcc66925418b68f94048b9dead13f984a8748f53bf94056ea05
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932134
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3f4b3ceddb2cfdaa3b1be4fa947975dda94a8bbc5be15e769404ba8be30f5d07
Median time: 1708932133
Difficulty: 4.656542373906925e-10
Confirmations: 23
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c66
Bits: 207fffff