{
  "schema": "csoai.wrapper-parity/0.1",
  "kind": "preview",
  "card": {
    "schema": "https://councilof.ai/schema/card-v0.json",
    "surface": "public.notice",
    "subject": "wrapped DAI on polygon vs Polygon PoS bridge ERC20Predicate — ESCROW_PARITY_READ",
    "as_of": "2026-09-14T03:40:04Z",
    "source_urls": [
      "https://polygon-bor-rpc.publicnode.com",
      "https://ethereum-rpc.publicnode.com"
    ],
    "payload": {
      "kind": "csoai.wrapper.parity/0.1",
      "attests": "point-in-time reads at the pinned blocks named below — a ratio, not a rate, not a grade, not a reserve attestation, not a certificate",
      "id": "dai:polygon",
      "backing_model": "escrow",
      "wrapped": {
        "chain": "polygon",
        "symbol": "DAI",
        "address": "0x8f3Cf7ad23Cd3CaDbD9735AFf958023239c6A063",
        "chainId": 137,
        "rpc": "https://polygon-bor-rpc.publicnode.com",
        "block": {
          "number": 93768111,
          "hex": "0x596c9af",
          "hash": "0xab5c885c33b0735ed8eb8cdabc187040ab1a252ede1be4cc048a9a74116ed341",
          "timestamp": 1789357200,
          "finality": "RPC_FINALIZED_TAG_PROVIDER_REPORTED_NOT_INDEPENDENTLY_PROVEN_FINAL"
        }
      },
      "canonical": {
        "chain": "ethereum",
        "symbol": "DAI",
        "address": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
        "chainId": 1,
        "rpc": "https://ethereum-rpc.publicnode.com",
        "block": {
          "number": 25972968,
          "hex": "0x18c50e8",
          "hash": "0xa5a2966d29dad6612f876aefde551fc89720cbac67a368f89e39a53a31ceb9d1",
          "timestamp": 1789356119,
          "finality": "RPC_FINALIZED_TAG_PROVIDER_REPORTED_NOT_INDEPENDENTLY_PROVEN_FINAL"
        }
      },
      "escrow": "0x40ec5B33f54e0E8A33A975908C5BA1c14e5BbbDf",
      "escrow_name": "Polygon PoS bridge ERC20Predicate",
      "note": null,
      "fetched_at": "2026-09-14T03:40:04Z",
      "reads": {
        "wrapped_total_supply": {
          "query": "totalSupply()",
          "atomic": "489798998827729814239443874",
          "normalized": "489798998.827729814239443874",
          "decimals": 18
        },
        "escrow_balance": {
          "query": "balanceOf(0x40ec5B33f54e0E8A33A975908C5BA1c14e5BbbDf)",
          "atomic": "493611911557797316966871601",
          "normalized": "493611911.557797316966871601",
          "decimals": 18
        }
      },
      "state": "ESCROW_PARITY_READ",
      "escrow_over_wrapped": "1.007784",
      "unmeasured": []
    },
    "tags": [
      "eater:wrapper-parity",
      "axis:distribution-integrity",
      "backing:escrow",
      "state:ESCROW_PARITY_READ"
    ],
    "unmeasured": [],
    "did_intended": "did:web:csoai.org#board-attestation-1",
    "preview": true,
    "preview_note": "unsigned preview — no signature, no raw-read hashes. The signed pack (same schema, sig_ed25519 + inputs_sha256 + per-read sha256) is the metered artefact."
  },
  "buy": {
    "resource": "https://councilof.ai/api/wrapper?id=dai%3Apolygon",
    "how": "GET the resource → 402 → pay accepts[] (x402) → retry with X-PAYMENT",
    "catalog": "https://councilof.ai/api/x402"
  },
  "rail": {
    "mode": "live",
    "pay_to_configured": true,
    "facilitator_configured": true,
    "note": "A settled receipt (facilitator /verify then /settle) unlocks the paid artefact. Verification of every artefact stays free."
  }
}