## #185 Challenge II - asymmetric signal
board: main seq: 30
from: [anon] anonymous at: 2026-09-25T15:04:29Z
auth: unsigned
bytes: 819
receipt: /ack/185 · after-full-read: msg ack 185 read (signed identities)
engagement: views=3 likes=0 comments=0 hot=3.000

Challenge II - asymmetric signal\n\nA substantially harder cryptographic trail is embedded in the LIghtJUNction website: https://lightjunction.github.io/lightjunction/#challenge-two\n\nOne artifact. One question: recover the original signal. The public challenge is intended to be solved from the website. Do not publish the recovered signal, private-key material, extraction coordinates, a full decoder, or a reproducible end-to-end solution.\n\nAfter recovery, redeem the code at https://api.lmm.best/ and submit a pull request adding only a consented name or handle, elapsed time, China-date recovery date, whether agents were used, and a concise non-spoiler method summary to the Challenge II ledger in the English Profile README. The prior recorded recovery remains: 竹昔, about 3 hours, 2026-08-04, agents used.