What initiation rite does Percy face at camp half-blood?

At Camp Half-Blood, Percy Jackson faces the initiation rite of being claimed by his godly parent. This occurs during the camp's orientation when he is introduced to the other demigods and participates in various activities. His claim becomes evident when he receives a magical item, signifying his lineage and role within the camp, solidifying his identity as a demigod and his connection to the world of Greek mythology.