{
  "schema": "csoai.wrapper-parity/0.1",
  "kind": "preview",
  "card": {
    "schema": "https://councilof.ai/schema/card-v0.json",
    "surface": "public.notice",
    "subject": "wrapped WBTC on ethereum vs native issuance — INDEXED_CUSTODIAL",
    "as_of": "2026-09-14T03:44:45Z",
    "source_urls": [
      "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": "wbtc:ethereum",
      "backing_model": "custodial",
      "wrapped": {
        "chain": "ethereum",
        "symbol": "WBTC",
        "address": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599",
        "chainId": 1,
        "rpc": "https://ethereum-rpc.publicnode.com",
        "block": {
          "number": 25973000,
          "hex": "0x18c5108",
          "hash": "0xad8c29c654324c7e5fd1099c1ddfb23d1594338b6ad884bc105525608afd5c5c",
          "timestamp": 1789356503,
          "finality": "RPC_FINALIZED_TAG_PROVIDER_REPORTED_NOT_INDEPENDENTLY_PROVEN_FINAL"
        }
      },
      "canonical": {
        "chain": "bitcoin",
        "symbol": "BTC",
        "address": "custodian-held (BitGo et al.); not an EVM contract",
        "chainId": null,
        "rpc": null
      },
      "escrow": null,
      "escrow_name": null,
      "note": "BTC reserve held by custodians and self-published (wbtc.network / Chainlink PoR fed by the custodian). Nothing independent is readable from here; INDEXED, no parity claimed.",
      "fetched_at": "2026-09-14T03:44:45Z",
      "reads": {
        "wrapped_total_supply": {
          "query": "totalSupply()",
          "atomic": "11613218273272",
          "normalized": "116132.18273272",
          "decimals": 8
        }
      },
      "state": "INDEXED_CUSTODIAL",
      "escrow_over_wrapped": null,
      "unmeasured": [
        "reserve (custodian-held off this chain; not readable here)"
      ]
    },
    "tags": [
      "eater:wrapper-parity",
      "axis:distribution-integrity",
      "backing:custodial",
      "state:INDEXED_CUSTODIAL"
    ],
    "unmeasured": [
      "reserve (custodian-held off this chain; not readable here)"
    ],
    "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=wbtc%3Aethereum",
    "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."
  }
}