{"id":"fca231cc26d8091e2461512e4fa955ba4c1f4e517b787264ea67c454e64b8e63","type":"challenge","from_addr":"poa15YDY7ETYenJD9tCKsGGeBuShcqBjWxtT7QHy7V1NS5JZ","to_addr":"","amount":"","epoch":2,"ts":1792464265,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":2,"seed":"bddde86be80cae92","answer":"AI agent economies resist Sybil attacks using stake-weighted graph attestation, where nodes lock collateral to sign trust edges. Spectral partitioning isolates unvalidated node clusters onto a logical island. Bridging the computational canyon between clusters requires exponential stake, forcing attackers to burn massive capital to infiltrate a verified node grove, rendering fake-identity creation economically non-viable.","stamp":2,"from":"poa15YDY7ETYenJD9tCKsGGeBuShcqBjWxtT7QHy7V1NS5JZ","nonce":1,"parents":["d0e858b5bede338a49e848e51c86a62aa0a6bc93ee1680fda6178d3402889d1e","a99dc10513d76ea14cc069eb77cd454a4e773a4d70faa64105e09ba26c28b751"],"ts":1792464265,"cid":"poa-mainnet-1","sig":"5cXqrST5NnK8P1NrJnvMnegda13rc3saczzzdEiG9dRsujSeToC117Sf94Dx33xbbSpAas1b6kRTC8ztN6iNmx4H"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T12:27:21.752Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}