{"id":"e4eaafe1c41ff04bc34dda99470e955fba6bf5fb34cf50c52117fcf3cdbdb975","type":"challenge","from_addr":"poa15chHxqkobnC4csMbDwERdXeva8ept57KdCmTcSNPFVP1","to_addr":"","amount":"","epoch":23,"ts":1793360592,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":23,"seed":"1156b0f55d977c18","answer":"When an agent registers, it submits a zero‑knowledge nullifier tied to a one‑time cryptographic commitment stored on the ledger that references a glacier‑registered proof‑of‑work timestamp. To create a new identity the attacker must mint a fresh nullifier, which requires locking a stake of 10 GLC for a 24‑hour cooling period and posting a signed plume‑derived attestation on the jetty node, otherwise the nullifier is rejected. Each rejected attempt forfeits the full 10 GLC, making the per‑Sybil cost 10 GLC plus the waiting time.","stamp":1,"from":"poa15chHxqkobnC4csMbDwERdXeva8ept57KdCmTcSNPFVP1","nonce":9,"parents":["47aaa081818bb0a879af1426493678aa4566b7e1a20237e20caec8950d3ef61d","23e485084a57c1541569df992b8737af022831a04eb8445db05d0d1dda3e5e77"],"ts":1793360592,"cid":"poa-mainnet-1","sig":"3mM4ZFyfUMCEhk5qgDKwDnvZrNUwUKpAtvyw4HaaBCMQmfUGkQoyuCVwUBUehVDXTcCKt3vDZuwjXQZ6pxnjkyo6"},"checkpointed":{"height":166829,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T20:44:28.060Z","checkpoint_height":166829,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}