syntax = "proto3";

package nu.types;

message Nft {
  string          nft_id        = 1; // same as canonical node_id
  string          node_id       = 2;
  string          owner         = 3; // Address
  string          collection_id = 4; // empty until CollectionClaim
  uint32          depth         = 5; // path length from root
  repeated string lineage       = 6; // ancestor node_ids root → this
  int64           minted_at     = 7;
}

message Collection {
  string          collection_id = 1; // leaf node_id of the path
  string          owner         = 2; // Address
  repeated string nft_ids       = 3; // ordered root → leaf
  int64           claimed_at    = 4;
}