Keystone Registry

Compliance records for regulated tokens, on every major chain

Keep the official holder record, enforce transfer restrictions with each chain's own controls, and prove reserves for tokenized securities and payment stablecoins on XRPL, Ethereum, Base, and Solana.

Built to the SEC's proposed transfer agent framework (proposed September 1, 2026) and for the GENIUS Act's reserve and AML requirements (effective January 18, 2027). The SEC proposal is not final; of the GENIUS Act's implementing rules, only the OCC's (October 21, 2026) is final, for the issuers it supervises; the AML and sanctions rules are proposed.

Demo USD, all deploymentsFinalized
HolderChainWalletBalanceStatus
Demo Capital LLCBase0x4f…a91c420,000.00
Demo Payments Inc.Solana7Hq…pX2310,500.00
Demo Treasury Co.XRPLrDe…H3k2180,000.00
Demo Trading Ltd.Ethereum0x9b…02de64,000.00Frozen
Unlinked walletSolanaFz2…k8W25,500.00No owner
Circulating4 chains1,000,000.00Balanced
Reserves cover 102.4%audit head 9f3a…c21e, anchored

One engine, a rule pack for each regime

The holder record, restrictions, and audit trail work the same on every chain. Each regime adds its own rules and reports on top.

Tokenized securities

Holder record
Reads every position at a finalized height, links each wallet to a verified holder, and reconciles against the chain's supply.
Maps to: Position records with digital wallet addresses; a blockchain as the master securityholder file
Restriction engine
Checks every transfer against legends, lockups, identity, accreditation, jurisdiction, and holder limits, then prepares the chain's own enforcement transaction for you to sign.
Maps to: Proposed Rule 17ad-31: restrictive legends and preventing unregistered transfers
Examiner export and reports
Readable files tied to an exact block, plus tokenized-issue report drafts with the sponsorship category filled in.
Maps to: Records produced promptly in readable form; expanded Form TA-2 reporting

Payment stablecoins

Supply across chains
Adds up circulating supply on every chain the coin is deployed on, excluding unissued treasury balances.
Maps to: One-to-one backing of every outstanding token
Reserve coverage
Checks each reserve report against the eligible asset list and maturity limits, and alerts the moment eligible reserves fall short.
Maps to: Eligible reserve assets under the GENIUS Act
Monthly disclosure
Drafts the reserve composition disclosure with a breakdown by asset type and by chain, ready for your approval.
Maps to: Monthly public reserve disclosures
Screening and freezes
Screens holder wallets and turns a sanctions hit or a court order into a blocked address and a prepared freeze transaction.
Maps to: AML and sanctions programs; complying with lawful orders

Works with the controls each chain already has

Reading holders works the same everywhere. Enforcement uses what each chain provides, and the console shows exactly what can be enforced for each token.

Supported chains, holder records, and enforcement
ChainHolder recordEnforcement
XRPLLive positions and past ledgersNative authorization, lock, and clawback
Ethereum and BaseIndexed from finalized blocksERC-3643 identity, freeze, and forced transfer, or your token's own controls
SolanaToken-2022 accounts at finalized commitmentDefault-frozen accounts, freeze authority, permanent delegate
StellarNextNative authorization and clawback

How it works

  1. Connect your tokens

    Register each deployment by chain and address. We read finalized state, never a cached guess.

  2. Build the record

    Holders prove wallet ownership by signature. Unlinked wallets are flagged, not hidden.

  3. Check and enforce

    The engine returns every violation at once and prepares the chain transaction you sign in your own custody.

  4. Hand over the file

    Examiners and auditors get readable exports and an audit chain they can verify themselves.

Built for the people who keep the record

Transfer agents and issuers

License the software and keep your registration. Take on tokenized issues on any supported chain without building blockchain infrastructure.

  • White-label console and API
  • Read-only, time-limited examiner accounts
  • Holder identity stays off chain

Stablecoin issuers

See supply and reserves for every chain in one place, months before the GENIUS Act takes effect.

  • Coverage alerts the moment reserves fall short
  • Monthly disclosure drafts by asset type and chain
  • Screening and freeze workflows on every chain

Design partners shape the roadmap and get founding pricing.

Where the rules stand

We track both rulemakings and will update the product to the final rules. Nothing here is legal advice. Last reviewed .

  1. GENIUS Act signed into law, setting a federal framework for payment stablecoins. Congress.gov,

  2. Treasury, OCC, FDIC, NCUA, and FinCEN/OFAC have proposed implementing rules. FinCEN, FinCEN,

  3. SEC proposes transfer agent modernization, including blockchain records and tokenized securities. SEC,

  4. The OCC adopts its final GENIUS Act rule for the issuers it supervises, effective January 18, 2027. The other agencies' rules are proposed, not final. OCC,

Read the plain-English explainers

We never hold your keys or your customers' money

The platform prepares transactions. You sign them in your own custody.

No custody

No customer private keys, no investor funds. Signing happens in your HSM or wallet.

Personal data off chain

Holder identity is encrypted in our database. Only hashes reach a ledger.

Independent review

SOC 2 audit planned before general availability, with a penetration test before launch.

How we protect records and personal data

See it on your token

We'll walk through testnet tokens end to end: a holder record, a blocked transfer, a prepared freeze, a reserve coverage check, and chain verification.

For example, Base and Solana.

This opens an email to our team at sales@keystoneprotocol.io.