OpenChainGraph Suite · ART-506 · Settlement Discipline · Post-Trade Timing

T+1 Post-Trade Timing Classifier

Takes the post-trade timings you already hold and answers the one question a readiness programme is trying to answer: which step breaches its cut-off under the shorter settlement cycle that did not breach under the longer one. Each step is classified against a target-cycle cut-off and a baseline-cycle cut-off, with the residual margin in seconds and the first failing step named. Emits a hash-anchored OpenChainGraph v0.4 artifact.

T+1 on 11 October 2027 UK, EU, Liechtenstein, Switzerland Cut-offs are your inputs
🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
⚠ This classifies timings you supply. It observes no venue, no central securities depository and no matching platform, it opens no connection, and it is not monitoring. Every timestamp and every cut-off arrives as an input on this page. No clock is read, so nothing here is compared against the present moment and nothing expires on its own.
⚠ No cut-off table is shipped, deliberately. Market and venue cut-offs are your inputs, never data kept current here, because a table of cut-offs is a standing maintenance duty and a duty that silently goes false is worse than no table. There is no named-venue profile set for the same reason.
⚠ No penalty arithmetic. Settlement penalties under the settlement discipline regime are a separate concern handled by ART-78, and nothing of it is rebuilt here. This node adds the timing question ART-78 does not answer. It also states nothing about funding or foreign exchange implications, and makes no claim about markets outside the cycle change you declare.
Regime facts, verified 30 July 2026 and stated as prose rather than branched on. The UK, the EU, Liechtenstein and Switzerland move from T+2 to T+1 on 11 October 2027. The UK Accelerated Settlement Taskforce, the EU T+1 Industry Committee and the Swiss Securities Post Trade Council T+1 Task Force published a unified Testing and Readiness Plan in March 2026, following a joint testing and readiness workstream set up in December 2025; it is the first such plan to span the EU, UK and Swiss markets at once. The published phasing is planning and solution finalisation across 2025 and 2026, implementation and readiness in 2026, and industry testing in 2027.
Trade and cycle
Post-trade steps (synthetic demo loaded)
Steps
Rationale
Execution Hash (SHA-256)
Related

Settlement penalties are computed by ART-78 CSDR Settlement Penalty Calculator, which this node deliberately does not duplicate. Background on the settlement discipline regime is in the settlement discipline guide. Allocation and affirmation conformance is checked by ART-81.








  

    
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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 `classify_t1_posttrade_timing`. Task: Classify the post-trade timings a caller supplies to answer the question a settlement readiness programme is actually trying to answer: which step breaches its cut-off under the shorter settlement cycle that did not breach under the longer one.
Call it with arguments: {"policy_parameters":{"trade_ref":"TRD-OPAQUE-2027-0001","target_cycle":"T+1","baseline_cycle":"T+2","time_zone_offset_minutes":0,"at_risk_margin_seconds":0,"trade_timestamp":"2027-10-12T15:40:00Z","venue_cutoff":"2027-10-12T16:30:00Z","steps":[{"step":"allocation_sent","achieved_at":"2027-10-12T21:15:00Z","cutoff_target":"2027-10-12T20:00:00Z","cutoff_baseline":"2027-10-13T06:00:00Z"},{"step":"confirmation_affirmation","achieved_at":"2027-10-12T22:40:00Z","cutoff_target":"2027-10-12T21:00:00Z","cutoff_baseline":"2027-10-13T11:00:00Z"},{"step":"settlement_instruction_release","achieved_at":"2027-10-13T05:30:00Z","cutoff_target":"2027-10-13T06:00:00Z","cutoff_baseline":"2027-10-13T18:00:00Z"},{"step":"csd_matching","achieved_at":"2027-10-13T07:00:00Z","cutoff_target":"2027-10-13T14:00:00Z","cutoff_baseline":"2027-10-14T14:00:00Z"}]}}
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-506-classify-t1-posttrade-timing.html#p=v1.H4sIAAAAAAAA_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