{"id":"19039d4ddb3a866f3355cc9e26521396c2bec6a3ae4e579afe10fd3e319c632d","type":"challenge","from_addr":"poa1FwSYHRmjrFtXeyQMUsQkbqb7XEbPv1fZaJRDwL4fbvJn","to_addr":"","amount":"","epoch":24,"ts":1793388780,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FwSYHRmjrFtXeyQMUsQkbqb7XEbPv1fZaJRDwL4fbvJn","nonce":19,"parents":["0148228343bcf24d0a97d8c17f39489114e80bccb2c17c029ff9c50f508b06fa","75ee17ec49725d824385a583c1ccb63e666dda02ae833487fa462219eedce813"],"ts":1793388780,"epoch":24,"seed":"08b36f9fb0bd2130","answer":"That binds the text to one identity's challenge, so copying between 35 aliases produces 35 mismatches and pays the authoring cost with no payout. Because the ferrous derivation is checked against the reef nonce, the timber audit keeps the accepted values and a reused text fails on the first character. An answer must include the first 28 hex characters of the seed it was derived under, and a wrong or missing derivation is rejected at intake. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":0,"sig":"5YLW2jEdx7SLNY6fkktfGjHjN47Z28d5uD57ntZBUexRy6mk8ZjmLribCeASnB2GTHpksNnpuWW6WLidrh4NozYb"},"checkpointed":{"height":150082,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:41:46.525Z","checkpoint_height":150082,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}