OpenChainGraph Suite · CONTRACT A3 · arch #5

CBAM Precursor Emissions Roll-Up

Precursor embedded-emissions aggregation incl. the 2028 scrap rule (ART-72) -> consignment embedded-emissions calculation (ART-69) -> Merkle integrity over the supplier data set (cry-04). Lets a complex-goods producer supply verifiable embedded emissions to its importer; pre-positions the downstream-180 scope extension.

OpenChainGraph · 3 Steps cryptographic mandate Hash-Anchored §4 chain_depth:3 Client-Side · Zero PII
Chain Topology — CBAM Precursor-Emissions Aggregator → CBAM Embedded-Emissions Calculator → Merkle Batch Verifier
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 3 Steps
1 ROOT · D0 node
CBAM Precursor-Emissions Aggregator art-72-cbam-precursor-emissions-aggregator
cumulative precursor SEE (H1) feeds the emissions calculator
MCP Call · aggregate_cbam_precursor_emissions
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "aggregate_cbam_precursor_emissions",
    "arguments": {}
  },
  "id": 1
}
2 D2 node
CBAM Embedded-Emissions Calculator art-69-cbam-embedded-emissions-calculator
consignment embedded emissions (H2) feed the verifier
MCP Call · calculate_cbam_embedded_emissions
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "calculate_cbam_embedded_emissions",
    "arguments": {}
  },
  "id": 1
}
3 TERMINAL · D3 node
Merkle Batch Verifier cry-04-merkle-batch-verifier
Exports composite precursor artifact with Merkle-root execution_hash (H3) -- final stage
MCP Call · verify_merkle_batch
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "verify_merkle_batch",
    "arguments": {}
  },
  "id": 1
}
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition — no new hash is minted. Available after hash computation.