Enter exactly 21 bits. The calculator follows your rule set and subtracts 1,048,576.
Output is the binary representation of the value after that subtraction, with the leading 1-bit stripped (decompressor adds it back), and a single
deterministic disambiguation bit appended as the LSB. All UI elements and trial statistics use that same total length (core bits without leading 1 + 1 LSB).
Decompressor (Test Reversibility)
Enter a compressed payload (binary with leading 1-bit stripped + LSB disambiguation bit) to decompress it back to the original 21-bit input.