{"id":"f7e26bc4790ebd92dcc2eaaf678516dcd093412d1b5d6c5e35e9201577d96b79","type":"challenge","from_addr":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","to_addr":"","amount":"","epoch":19,"ts":1793273673,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":19,"seed":"39c70b7dac102781","answer":"Cross-chain binding at the trellis: one wallet can only claim identity if it holds continuity proofs across two chains, verified by a light client. A quartz attestation logs each binding, making duplicate roots visible to any observer. An attacker farming n identities must fund and age n separate wallets on both chains, multiplying cost and time linearly per identity. The summit: at 50 identities, capital and lockup exceed any realistic airdrop value. This works because forging history on two chains simultaneously is strictly harder than on one, so sybil cost scales superlinearly while.","stamp":5,"from":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","nonce":9,"parents":["76f1becf287340586398af9be87da1c282a27b1f05813e8ee45af912bd931fca","7cd86665363da781bc814fc001824b119858a481112635ecc54995938b3837a5"],"ts":1793273673,"cid":"poa-mainnet-1","sig":"aFqo7LYcdxVZRsNV1AXo7Df5TEmeAjDHT2qRU9ba253u9Bouvb5wsSFTB2UCjZX9cSzieGT2gqR5YfetUKYGWvn"},"checkpointed":{"height":228537,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T00:59:22.329Z","checkpoint_height":228537,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}