{
  "schema": "feldra-full-fma4-comparison-v1",
  "date": "2026-11-10",
  "publication_status": "bounded_physical_pair_and_targeted_final_netlist_acceptance_passed",
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    "contexts_per_lane": 4,
    "host_sram": false,
    "clock_ns": 50,
    "io_budget_ns": 10,
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    "voltage_V": 1.2,
    "temperature_C": 25,
    "corner": "typical",
    "die_um": [
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    "requested_core_um": [
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    "place_density": 0.35,
    "layout_runs_per_variant": 1
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        "definitions_source": "https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/Metrics.tcl#L115-L145"
      },
      "supply_checks": {
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        "VSS_continuity_passed": true,
        "scope": "check_power_grid connectivity, no loaded IR-drop or electromigration signoff"
      },
      "route_gates": {
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        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
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      "minimum_period_ns": 27.2,
      "sta_fmax_MHz": 36.77,
      "internal_sta_fmax_MHz": 59.27,
      "maximum_postrepair_signal_fanout": 8,
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      "hold_slack_ns": 0.167334989,
      "electrical_checks": {
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        "max_capacitance_violation_count": 0,
        "max_fanout_violation_count": 0,
        "setup_endpoint_violation_count": 0,
        "hold_endpoint_violation_count": 0,
        "raw_finish_drv_metrics": {
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          "finish__timing__drv__max_cap": 0,
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          "finish__timing__drv__hold_violation_count": 0
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        "counts_clean": true,
        "definitions_source": "https://github.com/The-OpenROAD-Project/OpenROAD/blob/master/src/Metrics.tcl#L115-L145"
      },
      "supply_checks": {
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        "VSS_continuity_passed": true,
        "scope": "check_power_grid connectivity, no loaded IR-drop or electromigration signoff"
      },
      "route_gates": {
        "detailedroute__route__drc_errors": 0,
        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
      },
      "timing_usable": false,
      "meets_50ns_setup_hold": null
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  ],
  "original_comparison_sha256": "e7f8a615eb9358de1bd86b7ebc9297eadf81e31cb952b497f0ac82ea3c9dc66d",
  "same_frozen_sources_and_conditions": true,
  "same_actual_abc_mapping_conditions": true,
  "original_strict_paired_timing": false,
  "final_acceptance": {
    "status": "targeted_final_netlist_replay_passed",
    "original_receipt_sha256": "891b0367f7ab898bd359dd60e350ba1f39209cb14eba3e9c1e5c5aaee06af247",
    "zero_delay": true,
    "sdf_annotated": false
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  "energy_advantage_proven": false,
  "physical_signoff": false,
  "scope": "Four-lane fused BF16 multiply plus FP32 accumulation and local contexts. No host SRAM or full-model benchmark.",
  "final_summary_source_sha256": "8f57192d026acc5c96b224916428abef788b25d1056fa7240c7e7c6a17bc7660"
}