The Digital Chamber Blockchain Association filed an amicus brief with the New York State Supreme Court seeking to dismiss a claim for rights to inactive bitcoin wallets. An organization representing more than 250 market participants has warned that making such addresses abandoned will create risks for self-storing digital assets. The plaintiffs (Noah Doe and two companies) claim ~3.8 million BTC on 39,069 addresses, calling them "found property" after scanning a public blockchain.

Digital Chamber challenges the plaintiffs' logic: they did not create addresses, do not control them, and do not have private keys. Bitcoin lawyer Ian Cohen also filed an amicus curiae, stating that the law of found property is designed for physical objects rather than electronic records of public keys. In June, John Doe 33, a proxy defendant, filed a motion to dismiss the lawsuit, claiming control of a 5,000 BTC (~$300 million) wallet.

Against the background of the court case, "sleeping" addresses began to move: in June 2026, 31 address from the list transferred 17,527 BTC, and on July 5, 1KV47 (inactive since August 2011) moved 30 BTC (~$1.88 million). The plaintiffs list includes addresses associated with Satoshi Nakamoto and 1Feex, which is associated with the break-in of Mt. Gox.