Anthropic's IPO prospectus has a music problem, and a Swedish team has already solved it.

Anthropic, the company behind the Claude chatbot, is heading toward one of the largest stock listings ever attempted. Investors are discussing a valuation of around $2 trillion this October, up from $965 billion just months earlier, as revenue climbs from $ 47 billion toward a projected $ 100 to $ 120 billion by year's end. If it ends anywhere near that number, it will be the largest public offering in history.

On the West Coast of Sweden, a small team spent years on something spectacularly unglamorous. They registered and time-stamped over 2 million artists with 9.9 million recordings, then closed the file and walked away.

That non-event is about to be worth a great deal of money to everybody that hasn't been paying attention.

The prospectus

A private company raises money from a small circle of investors who do their own homework and accept the risk on their own terms.
Going public is a totally different ballgame as it makes the stock available to millions of ordinary people. Hence, the law requires the company to disclose its liabilities clearly before anyone buys a share.
That document is the prospectus, and it doesn't come with a highlight reel option.

Anthropic's must include its training history. What its AI service learned from and where that material came from.
Some of that history already has a settled price, while some doesn't.

The music lawsuit

In July, a federal court gave final approval to a $1.5 billion settlement, the largest copyright class action in US history, after authors and publishers accused Anthropic of training its AI on pirated books. Roughly 500,000 titles, about 3,000 dollars per book.
Done, filed, moving on.

The music case isn't.
Publishers, including Universal and Concord, are suing over more than 20,000 songs they say Anthropic pirated, seeking more than $3 billion and naming the chief executive personally.
Private investors shrugged off the book settlement and wrote a check for 1.5 billion at a valuation over a trillion.
Public markets are pickier.

Once a stock trades, every open question gets priced in daily by strangers with opinions.
At two trillion dollars, even a rounding-error doubt costs hundreds of millions.

The registry

Suppose Anthropic wanted to prove today that it trained only on music it had rights to. The honest version of that proof has to have existed before training began, or it's just a nicely formatted opinion.
Nobody can write a document today and convincingly date it 2022.

That is the entire point of what that Swedish team built. ProofProfile took a snapshot of public music data as it stood before 2022, right before AI-generated tracks became good enough to flood the same databases, then sealed it.

Every recording received a unique digital fingerprint, and in August 2026 those fingerprints went into a shared public record anyone can check without asking permission- the same kind of tamper-evident ledger Bitcoin runs on, minus the cryptocurrency.

Alter one character in a file, and its fingerprint no longer matches on the spot.

Nobody, including the people who run the registry, can quietly fix an entry afterward.
Not a policy. How the arithmetic works.

Why nobody can catch up

A rival with ten times the budget and staff could build something that looks like this by Friday. What they cannot do is convince the calendar that it's still 2022. That window is closed permanently, which means the registry isn't racing anyone on size. It got there first on a date, and dates don't do rematches.

Suno already paid this toll.

Two recent events preview what happens to companies that show up without an answer.

1) In July, a Munich court ruled against the AI music company Suno, finding it liable for training on copyrighted songs it couldn't account for.
2) Three weeks later, on August 12, the label BMG signed a licensing deal with Suno instead, built on records both sides could verify rather than one side vouching for the other.

The industry is already sorting itself into companies that receive and companies that write checks.

What money buys

Before a roadshow, money buys almost everything: more compute, more engineers, a balance sheet polished to a shine.
It cannot buy a Thursday in 2022, made honestly, by someone who had no idea it would ever be worth this much.

That one's already sitting in Sweden, sealed, and it isn't going anywhere until someone is making them an offer they cannot refuse.