
Key takeaways
- Block launches proof-of-reserves for its 8,883 BTC corporate treasury in Las Vegas.
- Block says Cash App and Square customer holdings are also visible through the reserve proof.
- Proof-of-reserves pressure is rising as Bitcoin firms compete on verification, not promises.
Block Shows The Coins
Block used Bitcoin 2026 to launch proof-of-reserves for its corporate treasury and customer-facing Bitcoin products, according to the company's announcement post and follow-up coverage from Cointelegraph. The feature covers Block's 8,883 BTC corporate treasury and displays reserves for Cash App and Square customer holdings.
Cointelegraph reported that the Jack Dorsey-led company wants users to verify holdings through on-chain signatures instead of trusting a static balance-sheet claim. The company framed the point directly. People should not have to trust that their bitcoin is there. They should be able to verify it.
Block said reserves are actively controlled, not merely historically observed.
That distinction is the point. A screenshot or quarterly line item says what a company claimed at a point in time. An on-chain verification process asks whether the entity can prove control of the coins it says it holds.
More Than A Treasury Flex
The corporate treasury number alone is large enough to matter. Cointelegraph put Block's 8,883 BTC at roughly $681.4 million at launch prices and said it ranked as the 14th-largest corporate Bitcoin holding. Other reports on the first-quarter reserve disclosure put total covered holdings at 28,355 BTC when customer balances are included.
Block also announced surrounding Bitcoin product updates. Cointelegraph reported a touchscreen Bitkey hardware wallet, automatic Bitcoin conversion for certain Cash App payments, 5% Bitcoin cash back rewards at Square merchants, and higher withdrawal limits of $10,000 per day and $25,000 per week. That makes the proof-of-reserves launch part of a broader attempt to make Bitcoin more usable inside Block's payments ecosystem.
The important part is not that Block is perfect. Proof-of-reserves does not prove every liability question, operational risk or custody assumption. It can be designed well or badly. But it does move the baseline from trust-us marketing toward public verification, which is exactly the direction Bitcoin companies should be pulled.
That pressure will not stop with Block. River, exchanges and corporate treasury firms have already used reserve transparency as a trust signal, and customers now have a simple question for any Bitcoin business that holds coins on their behalf. If the asset settles on a public chain, why should the balance remain a private story?
The Industry Standard Is Moving
Proof-of-reserves has been discussed for more than a decade, then gained urgency after FTX collapsed in 2022. Exchanges adopted versions of it because customers had learned, painfully, that regulated branding and celebrity boards did not equal solvency.
Corporate Bitcoin treasuries now face a similar pressure. If a company claims Bitcoin gives it monetary credibility, users and shareholders will increasingly ask why the coins cannot be verified. Strategy executive chairman Michael Saylor argued in 2025 that publishing reserve data creates security risks, according to Cointelegraph's recap. That argument deserves to be weighed. It also gets weaker when competitors show that verification can be turned into a product feature rather than a liability.
Why It Matters
Bitcoin's financial ecosystem can become meaningfully different from the traditional one only if firms voluntarily adopt better practices. The legacy system runs on audits, permissioned disclosures and institutional reputation. Bitcoin gives companies a harder option: prove the reserve, or ask users to trust you anyway. Block just made the second option look worse.



































































