Quantum Alliance bitcoin count is 6.04 million

Key Takeaways

The launch	Nine blockchain organizations formed the Quantum Alliance to define and test claims of post-quantum readiness. A member post dates the launch Thursday, Oct. 15. The GlobeNewswire release is dated Friday, Oct. 16.
The coins	The release counts 6.04 million bitcoin, 30.2% of supply, as quantum-exposed at rest. CoinDesk reported 6.4 million, including about 1.1 million it tied to Satoshi Nakamoto. The release does not mention Satoshi.
The timeline	A model by two alliance contributors points to March 2028 as an early window. The release says no machine that exists now can break these signatures.
The split	Bryn Bennett told CoinDesk that nobody knows the date. In those interviews, he and Richard Carback disagreed on freezing vulnerable coins. The launch release does not propose a freeze.

Nine blockchain organizations launched the Quantum Alliance, a group writing shared tests for post-quantum security claims, in a GlobeNewswire release dated Friday, Oct. 16, 2026. The Quantum Alliance bitcoin figure in that release is 6.04 million coins, 30.2% of supply, described as quantum-exposed at rest. CoinDesk, covering the same effort that day, reported 6.4 million.

What the Quantum Alliance bitcoin release says

The release, datelined Lisbon, Portugal, says executives and founders from nine organizations started an open standards body. It will define what post-quantum readiness means for networks, wallets, and infrastructure, and how to test a claim of quantum resistance.

The nine are Quantus, American Fortress, Intmax, Keystone, the Midnight Foundation, Postquant Labs, Abelian, The Vault, and Hacken. Postquant Labs lists two co-founders, Colton Dillion and Dr. Richard T. Carback III.

Most major blockchains secure accounts with elliptic-curve signatures, the release says. After an address signs, and for some address types from creation, the public key stays on a public ledger. A large enough quantum computer using Shor's algorithm, a method that can reverse certain public keys, could derive the private key and take the funds. The same signatures also protect stablecoin minting keys, governance contracts, bridges, and oracle feeds.

The release says almost all of a market it puts at roughly $2.9 trillion still uses those signatures. It counts 6.04 million bitcoin, 30.2% of supply, as quantum-exposed at rest, and it says no existing machine can take the coins that way.

CoinDesk's Friday, Oct. 16 report gives the alliance estimate as 6.4 million bitcoin, or the same 30.2%, including 1.1 million attributed to Satoshi Nakamoto. Neither 6.4 million nor Satoshi appears in the release. CryptoBriefing wrote on Thursday, Oct. 15 of about 6 million bitcoin and more than 30% of supply, nearer 6.04 million.

March 2028 and a standards gap

The release says the Quantum Doom Clock, a model by Carback and Dillion, has since early 2025 pointed to March 2028 as an early window for a cryptographically relevant quantum computer, one strong enough to break codes in real use. CoinDesk reported that Carback believes 2028 is a realistic date for such a machine.

Bryn Bennett, chief revenue officer at The Vault, told CoinDesk, "Nobody knows the date, but the estimates keep falling, and the risk is one we can already plan for." "The question for custodians isn't whether the date is 2028 or 2035; it's whether you can migrate in time if it arrives early."

The release cites a March paper from Google Quantum AI, with the Ethereum Foundation and Stanford, that it says cut the estimated size of an attack on signatures for bitcoin and ether, Ethereum's coin, to fewer than 500,000 physical qubits. That qubit count is the release's account of the paper, not a figure recalculated here.

A government record does match one claim. The National Institute of Standards and Technology (NIST) released its first three finalized post-quantum standards on August 13, 2024, including the Module-Lattice-Based Digital Signature Algorithm, known as ML-DSA. The alliance release says NIST finalized those standards in August 2024, and that nobody can order a live blockchain to adopt them. Quantus says it already uses ML-DSA. The release says the industry still lacks a shared meaning of "quantum-ready."

Freeze the coins, or publish tests

The disagreement over abandoned coins is in CoinDesk's interviews, not in the launch release. Christopher Smith, founder and chief executive of Quantus, told CoinDesk, "The most likely scenario is that whoever gets the first CRQC (Cryptographically Relevant Quantum Computer) will take them, probably with the blessing of whichever national government." He added, "Hopefully it's a government that likes bitcoin."

CoinDesk reported that Carback would rather move vulnerable coins than freeze them. Bennett told CoinDesk, "A custodian protects its clients' assets, not abandoned ones. Freezing coins is a governance decision for the Bitcoin network, not for the industry." He added, "Any freeze would trade quantum risk for a precedent on property rights and neutrality."

The release does not propose a freeze, a forced move, or a trust. It says the group will publish a definition of quantum readiness, open tests, and migration designs for exposed keys, dormant accounts, and the bulkier transactions post-quantum signatures create. Four groups cover migration, zero-knowledge proofs, wallets, and cross-chain use. A zero-knowledge proof lets a network check a transaction without revealing all of its data.

It says it will follow the Internet Engineering Task Force (IETF) model: open membership, public evidence, and no extra vote for company size or token holdings. Smith said in the release, "In the future, 'post-quantum cryptography' will just be called 'cryptography' and everything else will be in a museum."

No document sets a publication date, a budget, or a promise that Bitcoin developers, miners, or exchanges will use the tests. Bennett told CoinDesk, "Nobody has a credible single number, and anyone offering one is guessing," about the cost. He said the real cost is getting wallets, exchanges, custodians, and protocol developers to move together.

Postquant Labs' post on the Quip Network site, dated Thursday, Oct. 15, says the alliance launched that day. CryptoBriefing's Thursday, Oct. 15 article says the same. The GlobeNewswire text dated Friday, Oct. 16 says the nine organizations launched it that day. The member list and the mission match. The date on the wire does not.

This article is news, not financial advice.