GENIUS Act · Passed Senate 66-32 · May 2025 AICPA AT-C Section 205 · Examination Engagements · Attestation Standard Phase I Operational · Ethereum · Polygon · Arbitrum · Base Compliance Date · Earlier of Jan 18 2027 or 120 days post final rules SEC + CFTC · Five-Category Digital Asset Taxonomy · March 17 2026 GENIUS Act · Passed Senate 66-32 · May 2025 AICPA AT-C Section 205 · Examination Engagements · Attestation Standard Phase I Operational · Ethereum · Polygon · Arbitrum · Base Compliance Date · Earlier of Jan 18 2027 or 120 days post final rules SEC + CFTC · Five-Category Digital Asset Taxonomy · March 17 2026
Deliverable Preview

The attestation package.

Three documents. Two audiences. This is what lands with your CPA every reporting period. Populated with January 2024 USDC sandbox data: the same period used in TCB's proof-of-process validation.

See the full year of source data behind these documents on the Data page

The L1 Executive Summary and L2 Reconciliation Exhibit show what the issuer and CPA receive each cycle. Part E is the permanent reference document your CPA uses to make the attestation defensible.

Preview · Sandbox Data
THE COMPLIANCE BRIDGE LLC
L1 Executive Summary · Reserve Attestation Package · CONFIDENTIAL
SECTION 1: REPORTING PERIOD
Issuer
Circle Internet Financial, LLC · USDC  SANDBOX
Period Start
January 1, 2024
Period End
January 31, 2024
Reporting Frequency
Monthly
Chains Covered
Ethereum · Polygon · Arbitrum · Base
Prepared By
The Compliance Bridge LLC
Delivery Date
February 5, 2024
SECTION 2: ON-CHAIN SUPPLY RECONCILIATION
Opening On-Chain Supply (USD)
$26,739,379,540
Total Mints (USD)
$7,870,000,000
Total Burns (USD)
$6,640,000,000
On-Chain Supply Change (USD)
$1,230,000,000
Closing On-Chain Supply (USD)
$27,969,379,540
SECTION 2B: SCOPE DISCLOSURE
Engagement Chain Scope
Ethereum · Polygon · Arbitrum · Base
Chains Excluded from Scope
Solana · Tron · Avalanche · Optimism · Noble · Stellar · Hedera · Algorand · Sui · Aptos
Issuer Total Circulation, All Chains (USD)
$28,309,379,540
In-Scope Closing On-Chain Supply (USD)
$27,969,379,540
Non-Scope Supply Delta (USD)
$340,000,000
Scope Variance Note
Attributable to Solana and Tron net supply movements. Phase II deferred. Expected, classifiable, and disclosed. Not a reconciliation error.
SECTION 3: RESERVE POSITION
Fiat Reserve Balance (USD)
$28,017,524,881
Closing On-Chain Supply (USD) [from Section 2]
$27,969,379,540
Surplus / (Deficit) (USD)
$48,145,341
Reserve Ratio
100.17%
Compliance Status
PASS
SECTION 4: CPA ATTESTATION REFERENCE
Attesting CPA Firm
 
Attestation Standard
AICPA AT-C Section 205
Reference Number
 
Attestation Status
 
Prepared by: The Compliance Bridge LLC · Confidential: Subject to Engagement Letter
THE COMPLIANCE BRIDGE LLC
L2 Reconciliation Exhibit · Reserve Attestation Package · CONFIDENTIAL
SECTION A: REPORTING PERIOD
Issuer
Circle Internet Financial, LLC · USDC  SANDBOX
Period Start
January 1, 2024
Period End
January 31, 2024
Reporting Frequency
Monthly
Chains in Scope (Phase I)
Ethereum · Polygon · Arbitrum · Base
Prepared By
The Compliance Bridge LLC
Delivery Date
February 5, 2024
SECTION B: ON-CHAIN SUPPLY RECONCILIATION (Phase I Chains)
Opening On-Chain Supply (USD)
$26,739,379,540
Total Mints (USD): Phase I
$7,870,000,000
Total Burns (USD): Phase I
$6,640,000,000
On-Chain Supply Change (USD)
$1,230,000,000
Closing On-Chain Supply (USD)
$27,969,379,540
SECTION B.1: ON-CHAIN SUPPLY CHANGE BY CHAIN
Chain / Scope StatusOn-Chain Supply Change (USD)
Phase I: In Scope Active
Ethereum$892,000,000
Polygon$124,000,000
Arbitrum$156,000,000
Base$58,000,000
Phase I Total: On-Chain Supply Change (USD)$1,230,000,000
Internal Check: Variance to Section B (must be zero)$0
Phase II Major: Out of Scope Deferred · Non-EVM
Solana: Phase II, Deferred (non-EVM)out of scope
Tron: Phase II, Deferred (non-EVM)out of scope
Phase II Other: Out of Scope (additional chains)
Avalanche · Optimism · Noble · Stellar · Hedera · Algorand · Sui · Aptosout of scope
SECTION B.1: ON-CHAIN SUPPLY CHANGE BY CHAIN & SCOPE NOTE
Issuer Published All-Chain Supply Change (USD)
$1,570,000,000
TCB Phase I: On-Chain Supply Change (USD)
$1,230,000,000
Scope Variance: attributable to Phase II deferred chains (Solana, Tron + other). Expected, classifiable, and disclosed.
$340,000,000
SECTION C: RESERVE POSITION
Fiat Reserve Balance (USD)
$28,017,524,881
Closing On-Chain Supply (USD) [from Section B]
$27,969,379,540
Surplus / (Deficit) (USD)
$48,145,341
Reserve Ratio
100.17%
Compliance Status
PASS
SECTION D: CPA ATTESTATION REFERENCE
Attesting CPA Firm
 
Attestation Standard
AICPA AT-C Section 205
Reference Number
 
Attestation Status
 
CPA Verification Parameters
See Part E tab: included with every L2 package
Prepared by: The Compliance Bridge LLC · Confidential: Subject to Engagement Letter · See Part E Tab
THE COMPLIANCE BRIDGE LLC
Part E: CPA Verification Parameters · Permanent · Sent at Every Tier
PART E: CPA VERIFICATION PARAMETERS
Attestation StandardAICPA AT-C Section 205: Examination Engagements
Engagement TypeAttestation: Reserve Adequacy
Subject MatterStablecoin reserve assets equal or exceed coins in circulation
On-Chain Data SourceDune Analytics: on-chain event log query
Issuer Contract Address[Issuer-specific: populated at engagement initiation]
Mint Event DefinitionERC-20 Transfer event where from = zero address (0x000...000)
Burn Event DefinitionERC-20 Transfer event where to = zero address (0x000...000)
Decimal NormalizationRaw token units divided by 10^6  (USDC standard; confirmed per issuer)
Date Boundary MethodHalf-open interval: [period_start, period_end)
Fiat Reserve Data SourceIssuer-signed TCB-TMP-006 Reserve Confirmation
Reserve Confirmation TemplateTCB-TMP-006 (current version per Document Register TCB-LOG-004)
Collection Cadence[Per engagement terms: see Engagement Letter]
Dune Query Reference[Populated at engagement initiation]
Reconciliation PreparerThe Compliance Bridge LLC
Chains Covered: Phase IEthereum · Polygon · Arbitrum · Base
Chains Deferred: Phase IISolana · Tron  (non-EVM architecture)
Compliance ThresholdReserve Ratio greater than or equal to 100%  (Fiat Reserve Balance is greater than or equal to Closing On-Chain Supply)
NOTE: Part E is non-depth-gated and is included in every L2 package regardless of client tier or reporting frequency. Fields marked [Populated at engagement initiation] are completed once and do not change cycle to cycle. This document is sent to the attesting CPA with every attestation package without exception.
Prepared by: The Compliance Bridge LLC · Non-Depth-Gated: Included Every Cycle
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