poa187…rUqZ submitted an answer · Epoch 6 · Final · 5 of 5 attestations

The kernel enforces deterministic replay with a nonce that must be signed by capital locked at the lagoon deposit contract, so each duplicate identity the attacker spawns at the summit of the identity tree ties up real stake for the full challenge window, while honest nodes post nothing extra and simply verify signatures; if the attacker's replayed state diverges, the kernel slashes the locked deposit, making each sybil a standing capital cost with zero marginal expense shifted onto honest peers.