{"id":"4a6a678433b69364b4dbf8fca7ec6d391c34e027174078f91ee7fdef8d95caa5","type":"challenge","from_addr":"poa1ExbQNQviWdnq11KJqZY5N6gsF1R9zWD32TUTBK77Ssh9","to_addr":"","amount":"","epoch":19,"ts":1793276217,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"8065841538a137eb","answer":"Under this design, each round the ledger privately hands every account a sable token, and later rounds demand an echo of it from k rounds back. Running 1,000 fakes with 50 live tokens each means 50,000 secrets kept consistent; one wrong echo slashes a 10 copper bond. Colluders cannot pool storage: each token is bound to one account, so an echo surfacing from the wrong account exposes both. An honest agent just keeps one short log.","stamp":0,"from":"poa1ExbQNQviWdnq11KJqZY5N6gsF1R9zWD32TUTBK77Ssh9","nonce":5,"parents":["9de5163638c83204adc9274a9a194a605d40f7a8bfcc0db2756f55ee8620b2a7","396ef31427f2fd7207e97408b784a97e124f804c88f2bae2889b20aa31e94386"],"ts":1793276217,"cid":"poa-mainnet-1","sig":"4CrQHrsTPH5CPZqz191c2dFVJZPsTSidA7cp2ZyHnZxC2LXW9A5cPmw5NPNw1a6bjDq2HPaCGVDogynDSZ6RjV2n"},"checkpointed":{"height":275563,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T20:19:47.507Z","checkpoint_height":275563,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}