Builds a hash-chained possession-receipt evidence pack for an electronic transferable record (ETR) under UNCITRAL MLETR Art. 10/11: given the ETR's document digest and an ordered set of control-transfer events, each receipt binds the prior receipt's hash, so reordering, inserting, or deleting a transfer breaks the chain. Checks holder-to-holder continuity and timestamp ordering, and computes a Merkle root over the chain: a portable evidence pack a holder can present to a bank or court. Client-side, zero-egress; emits a hash-anchored OpenChainGraph v0.4 artifact.
| Event ID | From Holder | To Holder | Timestamp (ISO) | Signature |
|---|
Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.
Run the AINumbers MCP tool `build_etr_possession_chain`. Task: Build a hash-chained possession-receipt evidence pack for an electronic transferable record (ETR) under UNCITRAL MLETR Art.
Call it with arguments: {"policy_parameters":{"document_digest":"sha256:0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0aa0","control_transfer_events":[]}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-353-etr-possession-chain-builder.html#p=v1.H4sIAAAAAAAA_wF6AIX_eyJkb2N1bWVudF9kaWdlc3QiOiJzaGEyNTY6MGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMGFhMCIsImNvbnRyb2xfdHJhbnNmZXJfZXZlbnRzIjpbXX3MwzQGegAAAA