--- title: "Asset Registry" description: "Every listed pool leg: token address, decimals, the feed its mark is signed under, and the ERC-20 quirks an integrator has to handle." audience: tech type: reference status: live lang: en updated: "2026-08-29" publish: true --- # Asset Registry This page is the per-asset record behind every listed pool leg: the deployed token address, its decimals, the NXR feed the mark is signed under, and the ERC-20 quirks an integrator has to handle. Assets are grouped by the core they sit in: a core holds legs alike enough to share a curve and correlated enough that their inventory nets against each other rather than accumulating on one side ([Pool Composition](/docs/2-3-pool-composition#why-several-cores-rather-than-one)). The faucet twins that exist only to mint the hub asset are listed separately. Open it when you need to know what a symbol on the app actually is, or which feed id a given mark is bound to. | Chain | chainId | Registry status | |---|---|---| | Arc Testnet | `5042002` | Live. Rosters, feed ids and decimals below track its deployment manifests | Rosters are per chain; MITCH feed ids are not (§1). Deployed addresses per chain: see §7. --- ## 1. Feed routes - **NXR feed `-USDC · MITCH `**: the MITCH instrument id NX Rates signs the feed under. That id is the record key on the signed push path - it is what the signature binds, identical on every chain. NXR aggregates the source venues and signs the resulting mark itself ([Oracle Price-Push Security](/docs/3-6-oracle-price-push-security)). - **CEX-agg ``**: NXR multi-exchange aggregate on the named symbol vs USDC. Feed names are not denominations: USDS and PYUSD sign USDT-basis instruments, and the fiat and equity legs sign X-USD, so those marks carry a small USD/USDC basis that scales one-for-one with a USDC depeg. --- ## 2. Stable core (5) | Asset | Address | Dec | NXR feed | Notes | |-------|---------|-----|----------|-------| | USDC | `0x3600000000000000000000000000000000000000` | 6 | USDC-USD · MITCH 452687840255410176 | Official Circle testnet token on Arc; base of every pool | | USDT | `0x878e27566Ab9E32534e306C26388dFcE82D0AB46` | 6 | USDT-USDC · MITCH 451698500104617984 | No bool returns; approve-race guard (approve to 0 first) | | USDS | `0x66dbe40c8dc03f2C9e7A187F253e8889A03640c8` | 18 | USDS-USDC · MITCH 448399965221289984 | | | USD1 | `0x0326748d09eD77D8C15fbf04d6277aE4CAF033f3` | 18 | USD1-USDC · MITCH 442022797780189184 | | | PYUSD | `0xeE12a7072779a4ab85f2DD2a1E163DbF164291f9` | 6 | PYUSD-USDC · MITCH 445981039640182784 | | --- ## 3. Crypto core (7) Volatile legs of the crypto pool; USDC and USDT above serve as its stable legs. | Asset | Address | Dec | NXR feed | Notes | |-------|---------|-----|----------|-------| | WETH | `0x89A9cD1dd6DE3ab7152EF9c7C5496c2946334D0D` | 18 | WETH-USDC · MITCH 438724262896861184 | CEX-agg ETH | | WBTC | `0xF36eEe851bf3e76E464609a717bAE4a239A8cC7b` | 8 | WBTC-USDC · MITCH 453457718709059584 | CEX-agg BTC | | CBBTC | `0xbAA18E707E7b7fE9d1c0e4CeA61603035cb30C55` | 8 | CBBTC-USDC · MITCH 436635190804086784 | Own feed id, same BTC mark as WBTC | | BNB | `0x49C710167A4b486F20f9437485D865D653806310` | 18 | BNB-USDC · MITCH 434436167548534784 | CEX-agg BNB; pre-standard ERC-20 (2017), throws instead of returning false; mainnet addr metadata only | | XAUT | `0x432A3248e91d8B6fd41A487dE8886E0B44Fb7a6D` | 6 | XAUT-USDC · MITCH 454557230336835584 | CEX-agg XAUT | | PAXG | `0x96f953bAC2FF3829B4a526cacd858A5a22327E03` | 18 | PAXG-USDC · MITCH 454447279174057984 | | | EURC | `0x89B50855Aa3bE2F677cD6303Cec089B5F319D72a` | 6 | EURC-USDC · MITCH 439219043129360384 | Official Circle testnet token on Arc; an FX cross, not a metal/crypto commodity; sits in both the crypto and FX cores | --- ## 4. FX core (4 fiat legs; USDC and EURC above are its other two members) Non-USD fiat stablecoins. Each marks against its own currency, not a $1 peg, and each carries an independent breaker feed on `refOracle`. All are 18-decimal mocks with no mainnet counterpart. | Asset | Address | Currency | Dec | NXR feed | Notes | |-------|---------|----------|-----|----------|-------| | QCAD | `0x626eb915d4a4136F7c00352A54378d3A322488da` | CAD | 18 | QCAD-USDC · MITCH 456096546615721984 | Ref-oracle bound | | AUDF | `0x35c625c07ed4a9123ab863f6e8722c9210c808A3` | AUD | 18 | AUDF-USDC · MITCH 456206497778499584 | Ref-oracle bound | | JPYC | `0xA1fe5aDcB5f5DD1c21d372D18E7dF7fa5bfbc09e` | JPY | 18 | JPYC-USDC · MITCH 456426400104054784 | Ref-oracle bound | | KRW1 | `0xee7D69C52c2F183A0389374E82ca841c5a463573` | KRW | 18 | KRW1-USDC · MITCH 456536351266832384 | Ref-oracle bound | JPYC and KRW1 mark far from parity, which is why the FX pool sizes every leg from the real ceremony mark rather than defaulting to a peg. --- ## 5. Equities (10 listed legs) Tokenised stock mocks, no mainnet counterpart. Listed on the stocks-pool roster, bound on the oracle, and funded ([Pool Composition](/docs/2-3-pool-composition)). | Asset | Address | Dec | NXR feed | Notes | |-------|---------|-----|----------|-------| | INTC | `0xd7A6216738Eba05C0ee47ff478e307bE5A94Dc95` | 18 | INTC-USDC · MITCH 7687117506347008 | | | AMD | `0x3e04aa20170944d29681a475Bb3dd0a1Bb421cCb` | 18 | AMD-USDC · MITCH 166457972359168 | | | NVDA | `0xA4816856b8144ad1bb5a555A9Afa8B0f4B9FC8D0` | 18 | NVDA-USDC · MITCH 11205554715230208 | | | ASML | `0x56520a1D0F047e748AA042975D95B6B3CD203a4d` | 18 | ASML-USDC · MITCH 1134028204802048 | | | SPCX | `0xf782226BB4B4C6F57F24D17a34c5C041482b4bE2` | 18 | SPCX-USDC · MITCH 14102767854419968 | | | AVGO | `0x0458D9Fc5bd31b5Af3018Be9CfE91ecF4ABf9a7e` | 18 | AVGO-USDC · MITCH 1947666809356288 | | | TSLA | `0xBA76ce34AC2c65813ee2c11F34Ad1523fE43CBac` | 18 | TSLA-USDC · MITCH 15075835645001728 | | | MSFT | `0x83E43A65ce9E5aE1872a2363eD74D67C5A30fdb5` | 18 | MSFT-USDC · MITCH 10007087040954368 | | | ORCL | `0x56F81D0831b9352e023266b72F38b4657baA32E8` | 18 | ORCL-USDC · MITCH 11425457040785408 | | | META | `0x2767f2e94a7cF7935d59DdD7A5A30138369846e2` | 18 | META-USDC · MITCH 9930121227010048 | | The ten names were picked by measured tick activity on the venue feed, not by general popularity. Re-measure before changing the roster. --- ## 6. Faucet twins Two extra mocks exist so the faucet can mint the hub asset: **USDC.b** (listed on all four pools) and **EURC.b** (FX and crypto pools). Both are 18-decimal mocks; the official Circle tokens behind them are 6-decimal and not faucet-mintable. The `.b` suffix appears in the ERC-20 name and symbol only - display metadata, not a different asset. They own no feed, by design: a feed nothing pushes fails closed at ttl. Instead each rides a feed the keeper already services - USDC.b off `USDT-USDC`, EURC.b off `EURC-USDC` - so USDC.b carries a small permanent basis against native USDC (~7 bp measured 2026-08-20). That is a shared-feed artifact, not a depeg. Authoritative membership is the per-pool receipt records in the deployment manifests. --- ## 7. See also - [Pool Composition](/docs/2-3-pool-composition): which assets sit in which pool, shared BTC/ETH feed mapping - [Oracles](/docs/3-4-oracles): per-push guard table and feed struct - [Contract Addresses](/docs/2-1-contract-addresses): deployed mock addresses per chain