{
  "$schema": "https://decentralised.art/collections/manifest.schema.json",
  "schema_version": "dcn-collection-manifest.v1",
  "collection": {
    "id": "core-collection.v1.draft",
    "name": "DCN Core Collection v1 (Draft)",
    "kind": "core",
    "status": "draft",
    "maintainer": "hypermusic-ai",
    "generated_at_utc": "2026-04-16T00:00:00Z"
  },
  "network": {
    "chain_name": "DCN Chain (prototype)",
    "chain_api_base_url": "https://api.decentralised.art/chain"
  },
  "publication_policy": {
    "solidity_version": ">=0.8.2 <0.9.0",
    "requires_source_publication": true,
    "requires_hash_verification": true,
    "naming_policy": "deployable names must use domain_operation_vN (Solidity-safe); canonical_id keeps domain.operation.vN",
    "snippet_contract_policy": "sol_src is exact Solidity function body injected by dcn-server wrapper; do not include pragma/import/contract/entrypoint declarations in sol_src",
    "test_name_policy": "experiments must use unique test_* names; core canonical ids are reserved for curated publication"
  },
  "items": {
    "transformations": [
      {
        "canonical_id": "util.identity.v1",
        "name": "util_identity_v1",
        "version": 1,
        "category": "utility",
        "args_count": 0,
        "sol_src": "return x;",
        "notes": "Pass-through primitive.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "e60029d4b20bd40867b918f40e470635464455a841c81596ab84ef66abdb064d"
        },
        "snippet_contract": {
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          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.add.v1",
        "name": "math_add_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "return x + args[0];",
        "notes": "Addition primitive.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "1aaaffb88cd2d09c3f99e2b0536d83c978d0165be430149c5b9777fe7bd39e29"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.subtract.v1",
        "name": "math_subtract_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "return x - args[0];",
        "notes": "Subtraction primitive (reverts on uint32 underflow).",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "52d540d91d0b882c3b18b2a1e35dfd32f39906ea26f509356a41f22ce5f922db"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.multiply.v1",
        "name": "math_multiply_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "return x * args[0];",
        "notes": "Multiplication primitive.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "f64b431f76f4c8f5a051a7552df544af922fe42d1ab8ea5c71af56a5ea6d368a"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.divide.v1",
        "name": "math_divide_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "require(args[0] != 0, \"division by zero\");\nreturn x / args[0];",
        "notes": "Integer division.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "3eb5dd69e38af27bd03cc616c52329d409a98c868a7a8040682da42e383b4fcf"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.modulo.v1",
        "name": "math_modulo_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "require(args[0] != 0, \"modulo by zero\");\nreturn x % args[0];",
        "notes": "Modulo primitive.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "4cc4e402342910b07d20700f9ec4d32818c3e956fb1317208defc0b0d9670ff7"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.power.v1",
        "name": "math_power_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "uint32 result = 1;\nfor (uint32 i = 0; i < args[0]; i++) {\n    result = result * x;\n}\nreturn result;",
        "notes": "Exponentiation by repeated multiplication.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "bf2e0121f971bf82fc2c22e5d22f7aed7238c0f418686926fa8d07c0ebb6add8"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.min.v1",
        "name": "math_min_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "return x < args[0] ? x : args[0];",
        "notes": "Minimum of x and arg0.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "7868eaa606f4bb73afca01f71252d4482480ffbc2a0bf34f9f494842a93fe159"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.max.v1",
        "name": "math_max_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "return x > args[0] ? x : args[0];",
        "notes": "Maximum of x and arg0.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "896618a39f6b5af5358a8517a5ef9380e77616d147208a0bbe8e8314bc817067"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
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            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.clamp.v1",
        "name": "math_clamp_v1",
        "version": 1,
        "category": "math",
        "args_count": 2,
        "sol_src": "require(args[0] <= args[1], \"invalid clamp bounds\");\nif (x < args[0]) return args[0];\nif (x > args[1]) return args[1];\nreturn x;",
        "notes": "Clamp x to [min,max].",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "d28a71773988cf2d2108016f3448db7475c6e7e9af13b2c17ab9fa42fe03a096"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      },
      {
        "canonical_id": "math.quantize_step.v1",
        "name": "math_quantize_step_v1",
        "version": 1,
        "category": "math",
        "args_count": 1,
        "sol_src": "require(args[0] != 0, \"step is zero\");\nreturn (x / args[0]) * args[0];",
        "notes": "Floor quantization to nearest lower step.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "1dd872f8fd1fc38c51ce96c4f3c19c65321f39f8010e57070c8c71e812369369"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "run",
          "x_parameter_type": "uint32",
          "args_type": "uint32[] calldata",
          "return_type": "uint32",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function run("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/transformation.cpp",
          "symbol": "constructTransformationSolidityCode"
        }
      }
    ],
    "conditions": [
      {
        "canonical_id": "logic.always_true.v1",
        "name": "logic_always_true_v1",
        "version": 1,
        "category": "logic",
        "args_count": 0,
        "sol_src": "return true;",
        "notes": "Unconditional allow.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "10e0fa08a73f0cd151617165a96e7df8c8d14ecfc63d6f1f343559f16198939f"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "check",
          "args_type": "int32[] calldata",
          "return_type": "bool",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function check("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/condition.cpp",
          "symbol": "constructConditionSolidityCode"
        }
      },
      {
        "canonical_id": "logic.equals.v1",
        "name": "logic_equals_v1",
        "version": 1,
        "category": "logic",
        "args_count": 2,
        "sol_src": "return args[0] == args[1];",
        "notes": "Equality check.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "cfe880681d96495cc230124919ac29983b4ca68aa6b19693b5f56e391e0d253f"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "check",
          "args_type": "int32[] calldata",
          "return_type": "bool",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function check("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/condition.cpp",
          "symbol": "constructConditionSolidityCode"
        }
      },
      {
        "canonical_id": "logic.greater_than.v1",
        "name": "logic_greater_than_v1",
        "version": 1,
        "category": "logic",
        "args_count": 2,
        "sol_src": "return args[0] > args[1];",
        "notes": "Strict greater-than check.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "7a41bf2113a48f9b035cbf23f5c1dd73a32c68afe9627a67f82240def76dbec7"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "check",
          "args_type": "int32[] calldata",
          "return_type": "bool",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function check("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/condition.cpp",
          "symbol": "constructConditionSolidityCode"
        }
      },
      {
        "canonical_id": "logic.less_than.v1",
        "name": "logic_less_than_v1",
        "version": 1,
        "category": "logic",
        "args_count": 2,
        "sol_src": "return args[0] < args[1];",
        "notes": "Strict less-than check.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "22867a465de5ae337e2d3c4a1bb68673142492631e55546ecde76060570cc455"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "check",
          "args_type": "int32[] calldata",
          "return_type": "bool",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function check("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/condition.cpp",
          "symbol": "constructConditionSolidityCode"
        }
      },
      {
        "canonical_id": "logic.between_inclusive.v1",
        "name": "logic_between_inclusive_v1",
        "version": 1,
        "category": "logic",
        "args_count": 3,
        "sol_src": "return args[0] >= args[1] && args[0] <= args[2];",
        "notes": "Inclusive interval check.",
        "deterministic": true,
        "deployment": {
          "deployed": false,
          "owner": null,
          "address": null,
          "published_name": null,
          "deployment_block": null
        },
        "hashes": {
          "sol_src_sha256": "d7d8d7068fba03a7511dbc6de87716fb66415e70d51047d24e3eeae980d19db9"
        },
        "snippet_contract": {
          "kind": "function_body",
          "language": "solidity",
          "entrypoint": "check",
          "args_type": "int32[] calldata",
          "return_type": "bool",
          "arg_index_inference": "highest args[i] + 1",
          "forbidden_constructs": [
            "pragma ",
            "import ",
            "contract ",
            "function check("
          ]
        },
        "backend_reference": {
          "repository": "dcn-server",
          "path": "src/pt/src/condition.cpp",
          "symbol": "constructConditionSolidityCode"
        }
      }
    ],
    "connectors": [
      {
        "canonical_id": "template.midi.scalar_endpoints.v1",
        "name": "midi_scalar_endpoints_template",
        "version": 1,
        "format_hash": null,
        "notes": "Placeholder template targeting scalars pitch,time,duration|durationv2,velocity. Connector publication phase is tracked separately from transformation/condition source curation."
      }
    ]
  }
}