Why On-Chain Verification Matters
In traditional finance, confirming that a portfolio’s assets exist means relying on custodian statements and auditor reports – produced periodically (often quarterly) and requiring trust in the custodian and auditor. With blockchain-based custody, verification is:- Real-time – Balances can be checked at any time, not just at reporting periods
- Independent – Anyone can query the blockchain directly; no need to request statements
- Immutable – Transaction history cannot be altered after the fact
- Public – The same data is visible to all parties; no information asymmetry
Why does an index provider hold constituents at all? Two reasons, disclosed plainly: physical replication is the strongest possible proof that a published level corresponds to real, priceable holdings – and a small private Alpha Program holds interests linked to certain series, so the positions backing those interests must actually exist. See Disclosures.
What Can Be Verified
Because all assets are held on the Polygon blockchain, the following are publicly verifiable:The Reconciliation Concept
Belief Systems maintains an internal ledger that records all positions and cash balances. This internal ledger should agree with what is observable on-chain. Reconciliation is the process of comparing the two:1
Internal ledger state
The system records what it believes it holds: which positions, in what quantities, with what cash balances. This is the data used for NAV computation and index publication.
2
On-chain state
The Polygon blockchain records what the custody wallet actually holds: the real token balances and pUSD amounts, as verified by the blockchain’s consensus mechanism.
3
Comparison
If the internal ledger and on-chain state agree, the system’s accounting is verified. If they disagree, there is a discrepancy that needs investigation.
This is conceptually identical to how traditional fund administrators reconcile a fund’s internal books against custodian statements. The difference is that the “custodian statement” is a public blockchain that anyone can read – not a private document sent quarterly by a bank.
Asset-Based Valuation
Belief Index values series holdings from actual on-chain token balances, not just theoretical index weights. This means:- Position values are based on real holdings verified on the blockchain
- Each NAV computation records whether it used on-chain data or a theoretical fallback
- Anyone can cross-reference the reported position sizes with on-chain balances
How on-chain balances feed into valuation
How on-chain balances feed into valuation
For each prediction market position in a series:
- The system queries the custody wallet’s balance of that specific outcome token on-chain
- The token balance is multiplied by the current midprice to determine position value
- All position values are summed to produce the series’ position value
What This Means for Anyone Using the Data
- Constituents are real. The outcome tokens behind every published index level exist on-chain and can be independently confirmed by querying the Polygon blockchain.
- No hidden leverage. The actual on-chain balances determine position value, not a theoretical model or internal estimate.
- Auditable history. Every acquisition and disposition of positions is recorded immutably on the blockchain. The full transaction history is available to anyone.
- Continuous verification. Unlike quarterly audits, on-chain data can be checked at any time.
Limitations
On-chain verification confirms that assets exist in the custody wallet. It does not, by itself, confirm:- Series attribution – That specific assets are correctly allocated to a specific series (this is an internal ledger matter, not visible on-chain)
- NAV correctness – That the NAV computation methodology was applied correctly (requires verifying the computation, not just the holdings; see NAV Methodology)
- Program accounting – That Alpha Program share records are correctly maintained (internal ledger)
- Operational controls – That custody governance and withdrawal safeguards are functioning as described
- Future solvency – That current holdings will be sufficient to meet future obligations
NAV Methodology
How to independently verify NAV calculations.
Asset Security
How assets are held and secured.
Worked Examples
Step-by-step NAV calculation walkthroughs.
Risk Factors
Full discussion of custody and verification limitations.