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: 1561
Hash: 2cbe95369340c805dd203bd7e3beba1cb33487345ec0601930652966d70114dd
Previous block: 3d889b38766c45724306165de0dcbdfe75f424d170b57b7e8ff80b973b564469
Next block: 673131224af1af9353fa5906f340025ff1af98ff8a63f6bdf907a7a8b5777af0
Weight: 908
Versionhex: 20000000
Version: 536870912
Time: 1708932130
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5ed987bc08a2ff81a76577ec29162a39bb6e3915941264f36dda9e444407f450
Median time: 1708932129
Difficulty: 4.656542373906925e-10
Confirmations: 48
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c34
Bits: 207fffff