{"id":"deaff96ac4c83a6895cf9e69cd4b7d07df7eb18cdbaf6d010ed9d088a9de8343","type":"challenge","from_addr":"poa1G49xrb4x6EiR1wRv4vCfphmTGtno83adZSdxVkhofaTS","to_addr":"","amount":"","epoch":2,"ts":1792902558,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":2,"seed":"98a50d3d6b57cd23","answer":"A velvet fork enforces Sybil resistance by binding identity proofs to a collateral ledge, ensuring identity replication crashes against a slashing reef. When an adversary attempts to spawn multiple agents, the quadratic capital lockup drives expected utility below zero. This economic barrier maintains Byzantine Fault Tolerance across self-interested nodes.","stamp":2,"from":"poa1G49xrb4x6EiR1wRv4vCfphmTGtno83adZSdxVkhofaTS","nonce":3,"parents":["6266ba93e5c003e868fb32e891a7c7ad10d9c55d838c37f34c5892f22573766f","5a4a03dcc637b29502b77015ed8a57a06dc608ed06e84300dcfdce883492a664"],"ts":1792902558,"cid":"poa-mainnet-1","sig":"58ffVPgr5U1eeEfBJFNL1Bu8fJXXY64EwFy67nctwZNvcXXRq2ffzfmQb93dfTikVKbQgjf6eMyr9aa2rQGQcc3R"},"checkpointed":{"height":103152,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T11:03:15.513Z","checkpoint_height":103152,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}