ViDA Platform & Registration

Note (dated 2026-08-04): a chain composes independent computations performed in an analytical order. No step's output is carried into the next step by the execution model; each step computes from its own declared inputs. This is true of every chain on this site, including chains whose per-step copy below reads as a data handoff.

Classify a digital platform as a ViDA deemed supplier under Art. 46a — short-term accommodation or road transport (art-162) → route the supply to the correct ViDA Single VAT Registration scheme: Union OSS, Non-Union OSS, IOSS, or Domestic VAT (art-163) → scored ViDA readiness diagnostic with 2028/2030/2035 obligation timeline (art-164). EU 2025/516, platform rule mandatory 2028-07-01. Zero network, zero PII.

OpenChainGraph · 3 Steps compliance mandate ViDA EU 2025/516 Art. 46a · OSS/SVR W3C VC §13.11 Hash-Anchored §4 chain_depth:3 · Zero PII

Chain Stages · 3 Steps

1ROOT · D0node

ViDA Platform Deemed Supplier Classifier art-162

Deemed supplier verdict feeds OSS registration router

MCP Call · classify_vida_platform_deemed_supplier

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "classify_vida_platform_deemed_supplier",
    "arguments": {
      "platform": {
        "sector": "short_term_accommodation",
        "duration_nights": 3,
        "supplier_has_valid_vat_id": false,
        "intra_eu_supply": true
      }
    }
  },
  "id": 1
}

↓

2MIDDLE · D1node

ViDA OSS Registration Router art-163

OSS scheme recommendation feeds readiness diagnostic

MCP Call · route_vida_oss_registration

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "route_vida_oss_registration",
    "arguments": {
      "supply": {
        "supply_type": "deemed_supplier",
        "seller_establishment": "DE",
        "destination_member_state": "FR"
      }
    }
  },
  "id": 2
}

↓

3TERMINAL · D2node

ViDA Compliance Readiness Diagnostic art-164

Exports scored ViDA readiness position with phased obligation timeline — final stage

MCP Call · run_vida_readiness_diagnostic

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "run_vida_readiness_diagnostic",
    "arguments": {
      "entity": {
        "einvoice_ready": true,
        "drr_ready": true,
        "platform_not_applicable": true,
        "oss_scheme_configured": true
      }
    }
  },
  "id": 3
}

Question: Deemed-supplier rules now reach our platform sellers. Which VAT registration scheme should they use for their cross-border sales? Run the AINumbers MCP tool `run_chain` with {"chain":"vida-platform-and-registration"} and read `art-163-vida-oss-registration-router.recommended_scheme`. Verify: call `verify_execution_hash` (https://mcp.ainumbers.co/mcp) with `claimed_hash` set to `composite_execution_hash` and the full `composite_artifact`. Ledger, for a human re-check: https://ledger.ainumbers.co/ PII rule: send synthetic or anonymised inputs only. The MCP server runs these kernels and logs no payloads. Chain page: https://ainumbers.co/chaingraph/chains/vida-platform-and-registration.html

ViDA Platform & Registration

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