Held by the bank.
Aurum is a qualified custodian under the SEC Custody Rule (Advisers Act §206(4)-2). Client assets sit on the bank's balance sheet as bailment liabilities, not as Aurum's own property.
Security & Compliance
Bank-grade security.
Bank-grade security.
Crypto-native posture.
Aurum operates under three layers of oversight: the Wyoming Division of Banking, an annual SOC 2 Type II audit by Ernst & Young, and a public monthly cryptographic attestation of client reserves.
Verifiable, monthly.
Each month Aurum publishes a Merkle-tree attestation linking on-chain reserves to client liabilities. Anyone can verify inclusion of their own balance in the tree.
$250M in coverage.
Custody and crime coverage syndicated through Lloyd's of London. Covers cold-storage compromise, MPC key extraction, and insider collusion up to the policy limit, per occurrence.
The full posture
Every control, on one page.
SPDI
Wyoming Special Purpose Depository Institution charter
Aurum Reserve, Inc. operates under a Wyoming SPDI charter granted by the Wyoming Division of Banking under W.S. §13-12-101 et seq. Supervised by state examiners on an 18-month cycle. The SPDI framework requires 100% reserve backing of all deposits — full-reserve banking, not fractional.
Cold
98% cold storage
The minimum 2% hot operating float is set by the bank's Risk Committee based on five-day rolling outflow at the 99th percentile. Everything else lives in air-gapped, geographically segregated cold storage. No machine on the public internet ever holds a complete key.
MPC
3-of-5 threshold signing
Aurum uses a 3-of-5 GG20 threshold signing scheme operated across five Tier-3 data centers in Wyoming, Virginia, Texas, Singapore, and Switzerland. Key shares are generated in HSMs that have never been online and rotate every 18 months under dual-officer ceremony.
PoR
Monthly proof-of-reserves
A Merkle-tree commitment of all client balances is published on the first business day of each month, alongside signed attestations of the on-chain reserve addresses. Each client can verify inclusion of their own balance under their account hash using the open-source verifier.
SOC
SOC 2 Type II — annual
Audited annually by Ernst & Young LLP under the Trust Services Criteria (Security, Availability, Processing Integrity, Confidentiality). Report available to clients under NDA. Examined controls include 187 distinct policies.
KYC
KYC, AML, and sanctions
Tier-1 KYC at account opening: government ID, address proof, source-of-funds for balances over $250K. All transactions screened against OFAC, EU, and UK sanctions lists in real time via a Chainalysis KYT subscription. Suspicious activity reported to FinCEN under our MSB and SPDI BSA program.
Ins
$250M crime & custody insurance
Syndicated through Marsh JLT at Lloyd's of London. Coverage includes physical loss of HSMs, MPC key extraction by external attackers, insider collusion exceeding the bank's own threshold quorum, and on-chain theft of hot operating float. Loss event triggers a 72-hour disclosure to clients.
2FA
Hardware-key 2FA & allow-listing
Mandatory FIDO2 / WebAuthn for every account — no SMS codes, no authenticator apps. Outbound on-chain transactions require a destination on the account's allow-list, with a 24-hour cooling period for new entries.
Sgr
Segregation under §13-12-103
Under Wyoming Statute §13-12-103, client digital assets held in custody are the property of the client, not the bank, and are not subject to creditor claims against Aurum Reserve, Inc. in the event of insolvency or receivership.
Pen
Annual penetration testing
Independent red-team engagement annually with NCC Group; a second cycle with Trail of Bits for the smart contract layer and MPC software. Critical findings remediated under a 30-day SLA tracked in the SOC 2 evidence pack.
Operating record
Five years of operation. Zero loss events.
5yrs
In production
0
Loss events
$250M
Insurance coverage
98%
Assets in cold storage
Attestation history
Open the verifier
Twelve months. Every commitment.
| Period | Published | Reserves (USD eq.) | Liabilities | Ratio | Merkle root |
|---|---|---|---|---|---|
| May 2026 | 02 Jun 2026 | $4,214,810,221 | $4,202,488,517 | 1.0029 | 0xa3c2…b8e1 |
| Apr 2026 | 01 May 2026 | $4,088,217,440 | $4,074,901,233 | 1.0033 | 0x7f41…02ce |
| Mar 2026 | 01 Apr 2026 | $3,902,118,005 | $3,887,224,118 | 1.0038 | 0x12b9…44a0 |
| Feb 2026 | 03 Mar 2026 | $3,711,420,802 | $3,697,090,514 | 1.0039 | 0x9da2…1f57 |
| Jan 2026 | 02 Feb 2026 | $3,540,802,217 | $3,526,108,329 | 1.0042 | 0x44ec…7b08 |
| Dec 2025 | 02 Jan 2026 | $3,402,118,907 | $3,389,710,225 | 1.0037 | 0xb1aa…cc32 |
| Nov 2025 | 02 Dec 2025 | $3,210,408,011 | $3,198,142,901 | 1.0038 | 0x5510…91d4 |
| Oct 2025 | 03 Nov 2025 | $3,084,217,210 | $3,072,408,901 | 1.0038 | 0xe2f1…40bc |
Reserves include both on-chain and off-chain (cash) holdings. Liabilities are end-of-month client balances. Ratio is reserves / liabilities; the bank targets ≥ 1.0025 at all times.
Aurum Reserve is a Wyoming Special Purpose Depository Institution. Deposits and digital-asset balances held by Aurum Reserve are not insured by the Federal Deposit Insurance Corporation (FDIC) or the National Credit Union Administration (NCUA). Under Wyoming Statute §13-12-103, client digital assets held in custody are the property of the client and are not part of the bank's estate in the event of resolution.
The $250M crime and custody insurance program covers Aurum's institutional liability and is not a guarantee of client recovery in all loss scenarios. Coverage is per-occurrence, not per-client, and is subject to the policy's terms, exclusions, and limits.
Past attestations are not a guarantee of future reserve coverage. Aurum Reserve provides reasonable but not absolute assurance of continuous solvency and reserves the right to suspend on-chain withdrawals under extraordinary circumstances as defined in our Account Disclosures.