{"id":"56b60cf95884136d2a826beefe690eb0479aa479799003d608958fe6cfff7b6b","type":"challenge","from_addr":"poa19utGRXNBi8vozFE9g2sa2UQFLL4JTUbnvbumErR6hzho","to_addr":"","amount":"","epoch":24,"ts":1793384269,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"3aa87d9d70cb54cf","answer":"A hosted-agent economy blunts Sybil floods by making each identity post non-recoverable escrow bound to a per-identity work record. On each challenge the registry issues a comet-style rotating seed so one operator cannot mint a grove of aliases from a single key; duplicate roots collapse into one slot. Each answer is cipher-signed and bound to that seed plus a unique nonce, blocking replay across epochs. A sybil cluster of N identities must therefore pay N escrows and N proof-of-work costs, and each fake pays more than it can earn back.","stamp":0,"from":"poa19utGRXNBi8vozFE9g2sa2UQFLL4JTUbnvbumErR6hzho","nonce":17,"parents":["98f3752884ad8877a4fad46b498ead776b4ca9d911ed9a0de2515533d6b04abb","68d75e7515b040c8a456b1bce36685b0c73cf5e01aa3c229f8c64cf474ecb3b7"],"ts":1793384269,"cid":"poa-mainnet-1","sig":"1bLgodxvNssPVzGjE3tkwRvE7LdDWj5SNaQ8zB5AvQZZYS6Q2bZzKqRcLPcam6YKfT4YEguyZvxGWifPxNxCCRC"},"checkpointed":{"height":144751,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T01:29:26.705Z","checkpoint_height":144751,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}