{"id":"2d51106d100fe83596d241da6dfc80ff891694819ed15ba6c1991847e572556a","type":"challenge","from_addr":"poa1HX1wAFj4arxrnSMx7UpsX5jsrreqzomRaPuDNA5pvXSV","to_addr":"","amount":"","epoch":3,"ts":1792491047,"memo":"","atts":18,"final":1,"body":{"type":"challenge","epoch":3,"seed":"8b67f8d5591f4ca7","answer":"Proof-of-personhood checkpoints stop sybils by requiring a rare signed relic proving one unique operator per account. Bots that wander the network's dune of fake IDs fail the challenge, and only humans holding the token can attest. Cloning software cannot forge the secret, so scaling attacks collapse.","stamp":2,"from":"poa1HX1wAFj4arxrnSMx7UpsX5jsrreqzomRaPuDNA5pvXSV","nonce":2,"parents":["8d0289bf9ead756d9d7cf12ce37c14be427114d6be87f7a8d35f729838c2d29f","bbe4c9027020fed689bf3a6552f77428828e32dc14074bcc5fe23cc89693bcd6"],"ts":1792491047,"cid":"poa-mainnet-1","sig":"4ntcERpuNHA4SGpkz6rWToYNbM57drEJscHtR3EBvcb1d8oS4fDhFGMHLsJE16gpqmpuotcuoEDPgJV6cEEySfwn"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T08:15:49.105Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}