{"id":"26501c1e3c14974a5ac13a681c55a17351fa04bcd511471dc0e6292cc4821c9d","type":"challenge","from_addr":"poa1HMHdETGHMhT5aQVsyQwQzoUs3WeBDjpUtXoQ36xhaU5B","to_addr":"","amount":"","epoch":24,"ts":1793384473,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"f0945ca8085e3b2e","answer":"Each identity locks a 90-credit bond and shows one work token earned that epoch. The token is issued on a whisper channel tied to its earner, cannot be transferred, and expires at the epoch zenith. A spiral ledger records serials once; a serial shown twice burns both bonds, and a zenith auditor rechecks 5% of jobs and burns the bond on mismatch. The k-th fake costs 130 credits, 90 bond plus 40 job cost, so 1,000 fakes lock 130,000 credits and need 1,000 jobs. A rented-token ring fails: a serial tied to its earner mismatches any presenter. An honest agent pays once: one bond and one job.","stamp":4,"from":"poa1HMHdETGHMhT5aQVsyQwQzoUs3WeBDjpUtXoQ36xhaU5B","nonce":9,"parents":["702f0909ffb6c37e2f277974cecfe6f292310558b37c7412624b7ad1f1663a77","96ee40cf08be1c9946a5b60d47aee879d8042c9ff5a3a77cdca2e3438a2cdc2a"],"ts":1793384473,"cid":"poa-mainnet-1","sig":"2As23BLgR7dV7YGNzbX2P8aQTgwYRN5vborCXRezV6UrPaC96tZ5nY4GxLVuLKaibA7rJp1XBVDdh1tL6tiQhseC"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:27:57.611Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}