{
  "dataset_id": "D1",
  "title": "Open-source EDA handoff evidence",
  "schema_version": "1.0",
  "compiled_at_utc": "2026-10-25T02:45:12.780866+00:00",
  "checked_local_date": "2026-10-24",
  "timezone": "America/Denver",
  "license": "CC-BY-4.0",
  "license_scope": "Original compilation and observations only. Upstream documentation, software, HDL, patents and other rights remain separate.",
  "attribution": "Open-source EDA handoff evidence — original compilation, 2026-10-24",
  "comparison_attributes": [
    "primary_stage",
    "input_languages",
    "input_representation",
    "interchange_output",
    "execution_model",
    "testbench_interface",
    "formal_support",
    "assertion_support",
    "coverage_output",
    "waveform_output",
    "dependency_chain",
    "configuration_source",
    "project_manifest",
    "exit_status_artifacts",
    "debug_artifacts",
    "platform_support",
    "version_pin_method",
    "licence_family",
    "integration_caveat",
    "supported_standard_scope"
  ],
  "row_count": 20,
  "observation_scope": "Primary documentation and pinned repository inspection; no tool, core, simulation, synthesis, implementation or licence-compliance test was executed for this dataset.",
  "unknown_policy": "A null cell means not verified in the inspected source set, not absent from the project. A documented file is not proof that its flow passes.",
  "notes": [
    "The original 20-tool roster replaces Edalize with ngspice to include explicit analog simulation; FuseSoC remains the build-orchestration record.",
    "Nineteen repository snapshots are commit-pinned. ngspice uses current official SourceForge documentation; its stale GitHub mirror was rejected as current-version evidence.",
    "Inputs/outputs/formats are documented capabilities, not tested cross-tool compatibility. D3 separately reports actual installed-simulator observations.",
    "GPL/dual/custom licence labels preserve source scope and ambiguity. No licence text or software distribution is included.",
    "Collection stages and format filters are discovery aids, not supported end-to-end flow certifications."
  ],
  "rows": [
    {
      "record_id": "T01",
      "item_name": "Yosys",
      "repository_url": "https://github.com/YosysHQ/yosys",
      "pinned_commit": "5053d0e266d9e5f895211e39e6ee3a94cbba408a",
      "source_version": "Repository snapshot 5053d0e266d9e5f895211e39e6ee3a94cbba408a",
      "field_evidence": {
        "primary_stage": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_languages": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_representation": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "interchange_output": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "execution_model": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "testbench_interface": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "formal_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "assertion_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "coverage_output": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "waveform_output": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "dependency_chain": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "configuration_source": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "project_manifest": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "exit_status_artifacts": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "debug_artifacts": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "platform_support": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "version_pin_method": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "licence_family": {
          "status": "documented",
          "source_ids": [
            "T01-license"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/COPYING",
              "path": "COPYING"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "integration_caveat": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "supported_standard_scope": {
          "status": "documented",
          "source_ids": [
            "T01-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        }
      },
      "primary_stage": "RTL synthesis",
      "input_languages": "Verilog and synthesizable SystemVerilog subset",
      "input_representation": "HDL sources, synthesis script and cell-library inputs",
      "interchange_output": "Synthesized Verilog netlist in documented example",
      "execution_model": "Pass-based command-line synthesis flow",
      "testbench_interface": null,
      "formal_support": null,
      "assertion_support": null,
      "coverage_output": null,
      "waveform_output": null,
      "dependency_chain": "C++ build plus ABC and library dependencies",
      "configuration_source": "Yosys commands and synthesis scripts",
      "project_manifest": null,
      "exit_status_artifacts": "Command log; exact exit-code contract not verified",
      "debug_artifacts": "Interactive help and synthesis diagnostics",
      "platform_support": "Linux build documented; other platforms linked",
      "version_pin_method": "Pinned repository commit; not claimed latest release",
      "licence_family": "ISC core; ABC and libraries have separate licences",
      "integration_caveat": "Language support is a synthesizable subset; a successful downstream handoff was not tested",
      "supported_standard_scope": "Verilog-2005; synthesizable SystemVerilog 2017/2023 subset",
      "filter_values": {
        "stage": [
          "Synthesis"
        ],
        "language": [
          "Verilog",
          "SystemVerilog"
        ],
        "format": [
          "Verilog netlist",
          "Liberty"
        ],
        "licence": [
          "ISC; dependencies separate"
        ]
      },
      "licence_sources": [
        {
          "url": "https://github.com/YosysHQ/yosys/blob/5053d0e266d9e5f895211e39e6ee3a94cbba408a/COPYING",
          "path": "COPYING"
        }
      ],
      "checked_date": "2026-10-24",
      "execution_status": "Not executed for D1"
    },
    {
      "record_id": "T02",
      "item_name": "Verilator",
      "repository_url": "https://github.com/verilator/verilator",
      "pinned_commit": "1838b6ed035c507bbfffa8d0006ead9dbf836cff",
      "source_version": "Repository snapshot 1838b6ed035c507bbfffa8d0006ead9dbf836cff",
      "field_evidence": {
        "primary_stage": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_languages": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_representation": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "interchange_output": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "execution_model": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "testbench_interface": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "formal_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "assertion_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "coverage_output": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "waveform_output": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "dependency_chain": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "configuration_source": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "project_manifest": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "exit_status_artifacts": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "debug_artifacts": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "platform_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "version_pin_method": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "licence_family": {
          "status": "documented",
          "source_ids": [
            "T02-readme",
            "T02-license"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            },
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/LICENSE",
              "path": "LICENSE"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "integration_caveat": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "supported_standard_scope": {
          "status": "documented",
          "source_ids": [
            "T02-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
              "path": "README.rst"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        }
      },
      "primary_stage": "RTL simulation and lint",
      "input_languages": "Verilog/SystemVerilog",
      "input_representation": "HDL design plus optional C++/SystemC wrapper",
      "interchange_output": "C++/header models, SystemC and JSON",
      "execution_model": "Compiled simulation model or generated --binary executable",
      "testbench_interface": "C++/SystemC wrapper or supported HDL testbench",
      "formal_support": null,
      "assertion_support": null,
      "coverage_output": "Coverage-analysis instrumentation documented",
      "waveform_output": null,
      "dependency_chain": "C++ toolchain and generated model build",
      "configuration_source": "Command-line flags and wrapper configuration",
      "project_manifest": null,
      "exit_status_artifacts": null,
      "debug_artifacts": "Compile/lint diagnostics; model artifacts",
      "platform_support": null,
      "version_pin_method": "Pinned repository commit; not claimed latest release",
      "licence_family": "LGPL-3.0-only OR Artistic-2.0 project declaration",
      "integration_caveat": "README explicitly limits equivalence with full commercial simulators; SDF/mixed-signal support is not implied",
      "supported_standard_scope": "Verilog/SystemVerilog feature scope is configuration/version dependent",
      "filter_values": {
        "stage": [
          "Simulation"
        ],
        "language": [
          "Verilog",
          "SystemVerilog"
        ],
        "format": [
          "C++",
          "SystemC",
          "JSON"
        ],
        "licence": [
          "LGPL-3.0-only OR Artistic-2.0"
        ]
      },
      "licence_sources": [
        {
          "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/README.rst",
          "path": "README.rst"
        },
        {
          "url": "https://github.com/verilator/verilator/blob/1838b6ed035c507bbfffa8d0006ead9dbf836cff/LICENSE",
          "path": "LICENSE"
        }
      ],
      "checked_date": "2026-10-24",
      "execution_status": "Not executed for D1"
    },
    {
      "record_id": "T03",
      "item_name": "cocotb",
      "repository_url": "https://github.com/cocotb/cocotb",
      "pinned_commit": "259bc580bec8cc8a8423a7cce8637eca7c98114a",
      "source_version": "Repository snapshot 259bc580bec8cc8a8423a7cce8637eca7c98114a",
      "field_evidence": {
        "primary_stage": {
          "status": "documented",
          "source_ids": [
            "T03-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/cocotb/cocotb/blob/259bc580bec8cc8a8423a7cce8637eca7c98114a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_languages": {
          "status": "documented",
          "source_ids": [
            "T03-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/cocotb/cocotb/blob/259bc580bec8cc8a8423a7cce8637eca7c98114a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "input_representation": {
          "status": "documented",
          "source_ids": [
            "T03-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/cocotb/cocotb/blob/259bc580bec8cc8a8423a7cce8637eca7c98114a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "interchange_output": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "execution_model": {
          "status": "documented",
          "source_ids": [
            "T03-readme"
          ],
          "locators": [
            {
              "url": "https://github.com/cocotb/cocotb/blob/259bc580bec8cc8a8423a7cce8637eca7c98114a/README.md",
              "path": "README.md"
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "testbench_interface": {
          "status": "documented",
          "source_ids": [
            "T03-simulators"
          ],
          "locators": [
            {
              "url": "https://docs.cocotb.org/en/stable/simulator_support.html",
              "path": null
            }
          ],
          "note": "Documentation observation; no execution or interoperability test."
        },
        "formal_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "assertion_support": {
          "status": "unknown",
          "source_ids": [],
          "locators": [],
          "note": "Not verified in selected documentation; not an absence claim."
        },
        "coverage_output": {
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