Chrom°

Liquid value,
on chain.

Chrom° is the metal-backed liquidity layer for the open web. Continuous pricing. Sovereign settlement. A reserve you can audit at second-level resolution, in any of 24 currencies.

// I. The protocol

Three properties of a liquid reserve.

Most stable assets are pegs maintained by trust. Chrom° is built around something simpler: collateral you can look at, settlement you can verify, and a price that moves continuously — to the millimetre.

i.

Continuous pricing

The Chrom° oracle quotes a new bid-ask spread every 240 ms — sourced from 14 venues and one cold reserve. There is no "1.00" line. There is the spread, and there is the proof that produced it.

ii.

Sovereign settle

Settlement is final at L1 in 0.42 s median, with deterministic finality at 1.4 s. We do not borrow finality from an L2 that borrows finality from a wallet that borrows finality from a Twitter thread.

iii.

Reserve, visible

Each Chrom° unit is backed 1:1 by a basket of refined platinum-group metals, held in 4 audited vaults across 3 jurisdictions. The address of each vault is on chain. Cameras are on chain. The custodian's name is on chain.

// II. Mercury upgrade

Mercury — a better mirror for liquidity.

The 0.4 release rewrites the AMM in a single function. Liquidity providers earn the spread, traders pay the spread, and everything that is not the spread is — by design — somebody else's problem.

Routing across 14 venues is now solved in closed form. Settlement is non-custodial, MEV-resistant, and deterministic across reorgs of up to 6 blocks. The math is in §3 of the paper. The code is in /core/mercury.

EngineMercury v0.4
Median settle0.42 s
Reserve$4.21B · 1:1 PGM
AuditorsTrail of Bits · Veridise
LicenseBUSL-1.1 · open Aug '26
// III. The book, today

As of this morning.

$4.21BReserve · 1:1 backed
$284M24h volume · across 14 venues
0.42sMedian settlement (L1)
0Bad debts since inception

The slow part of finance shouldn't be finance.

Chrom° is in open beta. Custody is permissioned for now. Read the paper, run the testnet, and tell us where we're still wrong.

Open the app
// Protocol

How Chrom° keeps its word.

The protocol is small on purpose. One oracle, one AMM, one settlement contract. Everything else is either provable or somebody else's job.

i.

Continuous pricing

The Chrom° oracle quotes a new bid-ask spread every 240 ms.

ii.

Sovereign settle

Settlement is final at L1 in 0.42 s median.

iii.

Reserve, visible

Each Chrom° unit is backed 1:1 by a basket of refined platinum-group metals.

// Mercury

Mercury — a better mirror for liquidity.

The 0.4 release rewrites the AMM in a single function.

Routing across 14 venues is now solved in closed form.

EngineMercury v0.4
Median settle0.42 s
AuditorsTrail of Bits · Veridise
LicenseBUSL-1.1 · open Aug '26
// Reserves

Four vaults. One book.

Every Chrom° unit in circulation is backed 1:1 by refined platinum-group metals, held in bonded custody across three jurisdictions. Every gram is enumerated on chain.

Zürich I

CH-ZRH-001
CustodianMKS PAMP
Holdings1,140 kg PGM
Attestation0x8f21…c3b2
Live · verified 12s ago

Singapore II

SG-SIN-002
CustodianSilver Bullion Ltd.
Holdings980 kg PGM
Attestation0x1c7a…9e04
Live · verified 8s ago

London III

UK-LON-003
CustodianLoomis International
Holdings1,220 kg PGM
Attestation0xa4e0…7f11
Live · verified 14s ago

Toronto IV

CA-YYZ-004
CustodianBrink's Vault Services
Holdings870 kg PGM
Attestation0x63b8…d2ff
Live · verified 6s ago
$4.21BReserve · 1:1 backed
4,210kg PGM total
3Jurisdictions
240msAttestation cadence
// Mercury v0.4

One function. Every venue.

Mercury folds routing, pricing, and settlement into a single closed-form solver. Read the diagram; the whole engine fits on a napkin.

Mercury
14 venues · 1 solver · 240 ms epochs
i

Closed-form routing

No search, no heuristics — the optimal path across 14 venues is a matrix inversion. Sub-millisecond, deterministic.

ii

MEV-resistant

Commit-reveal ordering with 240 ms epochs. Sequencer cannot see the trade until it is already priced.

iii

Non-custodial

Funds never leave the settlement contract. Providers post collateral; solvers post bonds; users hold receipts.

iv

Deterministic reorg

Trades settle identically across L1 reorgs up to 6 blocks deep. No probabilistic finality theatre.

// Contact

Say hello. Or don't.

We answer every serious message. Also press, integrations, and reports of things that are broken.

Reach us directly

For partnerships, custody enquiries, and press. We read what you send.

Regions
Zürich · Singapore · Lagos

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