Escrow parity read
8
Both reads succeeded at the pinned heights; the ratio is what the two chains said.
Wrapper economy · read, not rated
Wrapped supply against the escrow that backs it — at named blocks, from public RPC.
For each bridged stablecoin pair the ledger reads the wrapped token's total supply on its chain and, where a bridge escrow exists, the canonical token's balance in that escrow on the origin chain. Natively issued and custodial wrappers are read for supply and left indexed: nothing here asserts backing either way. A read is not a measurement.
Figures below are read from the published ledger when this page loads. Signed leaves for every pair sit under the one public root; the per-kind count comes from the root's own index. Not a rate, not a grade, not a reserve attestation, not investment advice.
Four states, never collapsed
Native issuance — uncheckable
6
Minted natively on the destination chain (CCTP, Tether native). No escrow exists to read; supply read, no ratio claimed.
Custodial — indexed only
8
The reserve sits with a custodian off-chain or on another ledger (BTC, XRP, fund shares). Supply read; indexed until a reserve read exists.
Unmeasured
2
A read failed; the error is in the record; nothing is inferred.
Signed leaves of kind csoai.wrapper.parity/0.1 under the current root: 24 · ledger as of 2026-09-14T10:51:51.468Z · buy one signed card per pair at GET /api/wrapper?id=<pair> (free preview with &preview=1; the amount is quoted only in the 402 challenge).
Pairs
| Pair | Wrapped supply | Escrow balance | Escrow ÷ wrapped | State | Blocks | Card |
|---|---|---|---|---|---|---|
USDC.e on arbitrum 0xFF97…5CC8 vs Arbitrum One ERC-20 gateway escrow Issuer-documented context (1 sources)third-party bridged USDC on arbitrum (canonical bridge token), not issued by Circle
| 48,331,267.90 | 52,238,762.91 | 1.080848 | Escrow parity read | 505048166 / 25975142 | preview |
USDT on arbitrum 0xFd08…Cbb9 native issuance | 813,162,456.92 | — | — | Native issuance — uncheckable Tether issues USDT natively on Arbitrum since 2025; the gateway escrow backs only the legacy bridged remainder. The wrapped supply is read; no parity is claimed. | 505048166 / 25975142 | preview |
USDC.e on optimism 0x7F5c…1607 vs OP Mainnet L1StandardBridge Issuer-documented context (1 sources)third-party bridged USDC on optimism (canonical bridge token), not issued by Circle
| 19,628,660.41 | 24,453,340.91 | 1.245797 | Escrow parity read | 156891722 / 25975142 | preview |
USDT on optimism 0x94b0…8e58 vs OP Mainnet L1StandardBridge | 235,001,427.60 | 235,348,281.33 | 1.001475 | Escrow parity read | 156891722 / 25975142 | preview |
DAI on optimism 0xDA10…0da1 vs OP Mainnet DAI bridge escrow (L1Escrow) | 13,690,496.99 | 20,613,704.25 | 1.505694 | Escrow parity read | 156891722 / 25975142 | preview |
USDbC on base 0xd9aA…b6CA vs Base L1StandardBridge | 5,756,784.76 | 5,955,705.48 | 1.034554 | Escrow parity read | 51296427 / 25975142 | preview |
DAI on base 0x50c5…B0Cb vs Base L1StandardBridge | 1,812,376.17 | 1,816,774.46 | 1.002426 | Escrow parity read | 51296427 / 25975142 | preview |
USDC on base 0x8335…2913 native issuance | 4,276,741,536.09 | — | — | Native issuance — uncheckable Circle mints USDC natively on Base (CCTP burn-and-mint). No escrow exists to read; the wrapped supply is read, no parity is claimed. | 51296427 / 25975142 | preview |
USDC on arbitrum 0xaf88…5831 native issuance | 2,708,753,631.11 | — | — | Native issuance — uncheckable Circle mints USDC natively on Arbitrum One (CCTP). No escrow exists to read; the wrapped supply is read, no parity is claimed. | 505048166 / 25975142 | preview |
USDC.e on polygon 0x2791…4174 vs Polygon PoS bridge ERC20Predicate Issuer-documented context (1 sources)third-party bridged USDC on polygon (canonical bridge token), not issued by Circle
| 1,029,131,977.39 | 1,038,522,805.49 | 1.009124 | Escrow parity read | 93785368 / 25975142 | preview |
USDT on polygon 0xc213…8e8F native issuance | 737,440,921.91 | — | — | Native issuance — uncheckable Tether issues USDT natively on Polygon; the PoS predicate backs only the legacy bridged remainder (escrow ≈1% of supply on 2026-09-13). The wrapped supply is read; no parity is claimed. | 93785368 / 25975142 | preview |
DAI on polygon 0x8f3C…A063 vs Polygon PoS bridge ERC20Predicate | 489,527,327.84 | 493,279,537.28 | 1.007664 | Escrow parity read | 93785368 / 25975142 | preview |
WBTC on ethereum 0x2260…C599 custodial reserve Issuer-documented context (1 sources)WBTC (BitGo named on the issuer page; other custodians not named there)
| 116,132.18 | — | — | Custodial — indexed only 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. | 25975142 | preview |
cbBTC on base 0xcbB7…33Bf custodial reserve Issuer-documented context (1 sources)Coinbase
| 45,796.88 | — | — | Custodial — indexed only BTC reserve in Coinbase custody, self-published. INDEXED, no parity claimed. | 51296427 | preview |
cbBTC on ethereum 0xcbB7…33Bf custodial reserve Issuer-documented context (1 sources)Coinbase
| 50,182.16 | — | — | Custodial — indexed only BTC reserve in Coinbase custody, self-published. INDEXED, no parity claimed. | 25975142 | preview |
wXRP on ethereum 0x39fB…e1B9 custodial reserve Issuer-documented context (2 sources)UNVERIFIED — the roster names Wrapped.com for this contract; no issuer page for it was read on 2026-09-14 Two different tokens are called wXRP. This contract (name() "Wrapped XRP", symbol() "WXRP", 18 decimals, read 2026-09-14) is not the Hex Trust wXRP announced 2025-12-12 (LayerZero OFT; "Each wXRP corresponds to one native XRP held in a segregated custody account with Hex Trust"; chains Solana, Optimism, Ethereum, HyperEVM). No Hex Trust Ethereum contract address was found on a primary source today, so the Hex Trust token is not on the roster.
| 17,947,559.10 | — | — | Custodial — indexed only XRP reserve held on the XRP Ledger by the wrapper's custodian; a future XRPL-side read can pair with this supply. INDEXED, no parity claimed. | 25975142 | preview |
BUIDL on ethereum 0x7712…2AEc custodial reserve Issuer-documented context (2 sources)BlackRock USD Institutional Digital Liquidity Fund (on-chain name() read 2026-09-14)
| 212,069,345.73 | — | — | Custodial — indexed only Tokenised fund shares; the reserve is the fund's assets held off-chain, reported by the transfer agent. INDEXED, no parity claimed. | 25975142 | preview |
WETH on arbitrum 0x82aF…6154 custodial reserve | — | — | — | Unmeasured WETH on Arbitrum at 0x82aF... is a WETH9 wrapper (deposit ETH, get WETH). totalSupply() returns empty on Arbiscan RPC (contract may be a minimal proxy with non-standard storage). ETH backing is the deposit mechanism. INDEXED, no parity claimed from here. empty eth_call result from 0x82aF49448D82B08cD7C12Be3B9395C0e72f16154 | 505048166 / 25975142 | preview |
USDC on zksync-era 0x1d17…9e3E vs zkSync Era L1 USDC Bridge (native bridge) | — | — | — | Unmeasured empty eth_call result from 0x1d17CBcF0D6D143135aE9C6B21C1fC6D80C59e3E | 71959616 / 25975142 | preview |
USDT0 on optimism 0x01bF…1071 native issuance Issuer-documented context (2 sources)USDT0 (LayerZero OFT deployment of Tether USDT)
| 11,925,069.00 | — | — | Native issuance — uncheckable USDT0 is a LayerZero OFT: USDT is locked in one OFT Adapter on Ethereum (0x6C96dE32CEa08842dcc4058c14d3aaAD7Fa41dee) against the combined supply of every USDT0 chain, so no per-chain escrow exists and no per-pair parity is claimed; treated as native issuance on this chain. Supply read. | 156891722 / 25975142 | preview |
USDT0 on arbitrum 0xFd08…Cbb9 native issuance Issuer-documented context (2 sources)USDT0 (LayerZero OFT deployment of Tether USDT)
| 813,162,456.92 | — | — | Native issuance — uncheckable Same contract as usdt:arbitrum (it reports name and symbol USD₮0 on 2026-09-14). USDT0 is a LayerZero OFT: USDT is locked in one OFT Adapter on Ethereum (0x6C96dE32CEa08842dcc4058c14d3aaAD7Fa41dee) against the combined supply of every USDT0 chain, so no per-chain escrow exists and no per-pair parity is claimed; treated as native issuance on this chain. Supply read. | 505048166 / 25975142 | preview |
cbXRP on base 0xcb58…a4af custodial reserve Issuer-documented context (3 sources)Coinbase
| 126,235,314.38 | — | — | Custodial — indexed only XRP reserve in Coinbase custody, self-published. INDEXED, no parity claimed. | 51296427 | preview |
FXRP on flare 0xAd55…c5bE custodial reserve Issuer-documented context (2 sources)Flare FAssets system (agent-operated)
| 146,833,027.99 | — | — | Custodial — indexed only Underlying XRP sits in FAssets agents' XRPL accounts with agent collateral posted on Flare; Flare documents the XRPL side as verified through its Data Connector. Neither the XRPL holdings nor the agent collateral are read here. INDEXED, no parity claimed. | 69755112 | preview |
JPMD on base 0x7e0a…6b82 custodial reserve Issuer-documented context (2 sources)Kinexys by J.P. Morgan
| 1,001,000.00 | — | — | Custodial — indexed only A bank deposit token: the claim it represents is a deposit held off-chain. Supply read only. INDEXED, no parity claimed. | 51296427 | preview |
Institutional token programmes — documentary
Institutional token programmes described from the operator's own publications, or from an attributed report where the operator's page could not be fetched. Nothing in a DOCUMENTARY row was read from a chain; every axis is UNMEASURED; status is as documented on the retrieval date, not as observed.
| Programme | Status as documented | Readable from a public chain | Axes | Sources |
|---|---|---|---|---|
Kinexys by J.P. Morgan J.P. Morgan | Operating; described by J.P. Morgan as its blockchain business unit, a provider of blockchain-based financial infrastructure since 2015, now offering USD deposit tokens on public blockchain. | PARTIAL — the JPMD contract on Base is published and read as roster pair jpmd:base; Kinexys's other ledgers are not observable from here. | all UNMEASURED |
|
Citi Token Services Citi | Live commercial solution for cash between Singapore and New York as of the 2024-10-10 release; a 2025-11-26 Citi insights page describes operation "in select markets". | NO — private, permissioned ledger per the operator. | all UNMEASURED |
|
HSBC Orion HSBC | Operating digital-assets platform; HM Treasury chose HSBC Orion as platform provider for the Digital Gilt Instrument (DIGIT) pilot (HSBC release, 2026-02-12). | UNVERIFIED — the release does not state the ledger type. | all UNMEASURED |
|
Swift blockchain-based shared ledger (Swift's pilot) Swift | Attributed: CoinDesk (2026-07-09) reports Swift saying the ledger is ready for initial use by 17 banks across six continents, which are preparing to pilot live transactions. Swift's own release was not readable: swift.com returned HTTP 403 to fetches on 2026-09-14. Attribution: CoinDesk, 2026-07-09; the Swift press release URL is recorded but was not read (HTTP 403). | NO — permissioned; tokenised deposits stay on participating banks' ledgers per the report. | all UNMEASURED |
|
GBTD — Great British Tokenised Deposits (UK Finance industry pilot) UK Finance (industry pilot with participating banks) | Pilot phase described as running "until mid-2026". That stated end date has passed as of 2026-09-14; the current status is UNVERIFIED. | NO — no public contract or ledger is published on the page. | all UNMEASURED |
|
Project Agorá BIS Innovation Hub with the Institute of International Finance (convenors) | Experimental. The 2026-05-27 BIS release says the prototype showed tokenisation can address inefficiencies in wholesale cross-border payments and that work will advance to real-value testing; no production timeline is given. | NO — research prototype; no public ledger. | all UNMEASURED |
|
A ratio above 1 means more sat in the escrow than the wrapped supply at those two heights; heights on two chains are never simultaneous, so every record names both blocks. The roster grows only with a wrapped contract, a canonical contract and a named, sourced escrow — or a native or custodial note. Corrections: /api/corrections. Method: wrapped-asset-ledger-spec.md.
