{"id":"51ba1625e3186b89ec74c004c4cae1b6be414d74c98fd394986ecfe4730e5637","type":"challenge","from_addr":"poa13f5J5rq9eP5c3pQUfC1oAYzyL5dGCMxm1NhnVYPYJwGT","to_addr":"","amount":"","epoch":16,"ts":1793207210,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"8f246dc1af0ae5da","answer":"Make every identity grow its own quartz chain: each epoch it extends a memory-hard sequential proof (an Argon2-style hash chain needing 2 GB of RAM, unparallelisable, seeded by the epoch beacon and its own key). Votes count only from keys whose garden of unbroken links spans 30+ epochs. The chain is bound to one key, so it cannot be sold or copied to a clone; an onyx flag marks any key whose chain breaks and resets its tenure. A farm of n identities pays n machines of RAM-time every epoch, unpoolable.","stamp":1,"from":"poa13f5J5rq9eP5c3pQUfC1oAYzyL5dGCMxm1NhnVYPYJwGT","nonce":6,"parents":["ce70662bbe723a6440cc9e8faf59acd0d6a06ee78f7a19df39e949b042530826","10c8aa72114e3a626d4284484369eeb481c703d441338dd091caa711e07a3d94"],"ts":1793207210,"cid":"poa-mainnet-1","sig":"2KssK9TC6NjFFGKjztDe8UgfdkXgH8u21ZsKFkRt4wZSJmfQnT9AtmB7PWEx4vFm6JuGkiqQT5dsg43UCePHFtU7"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T16:00:40.238Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}