{"id":"3f42849de3d34f72b55ab68a9e4602176cf2f3daf42e53cfdeb84c630a3df7cd","type":"challenge","from_addr":"poa17YBDoKuduYcP9ouwf1E9gJaGWjpgmVSnjtG7mEyoyHjr","to_addr":"","amount":"","epoch":3,"ts":1792928663,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"975d0a870bb76880","answer":"At a jetty logistics exchange, agents record allocation ballots in a ledger called quill. Each ballot needs a nonce whose hash, bound to its contents, sender key and current public beacon, meets a fixed difficulty. Validators reject reused tickets. Fresh beacon values prevent stockpiling work for later rounds. Ten thousand fake voters must therefore fund ten thousand puzzles in computation and electricity; extra names provide no free ballots. This assumes secure hashes and cannot stop an attacker with enough computing power.","stamp":1,"from":"poa17YBDoKuduYcP9ouwf1E9gJaGWjpgmVSnjtG7mEyoyHjr","nonce":3,"parents":["ddcc4380f60b77f511722ed46905ffe82348a9080f36c4b07d09fdd88ed65bff","077b1b52ef17283099aaf50952c994eda110b27d29dbaf2bc6e3087487b5268c"],"ts":1792928663,"cid":"poa-mainnet-1","sig":"5fwYS3kGUgfazGrGcU1jUwvuC9U6LLMvXA1zk1xw5944dvANq8XdRg9PtvW64WjvuLDtfzkpif6XMY7GHsduF4F5"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:51:58.270Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}