The central claim is substantially supported by the fetched Reuters report 'イラン、ホルムズ海峡の通過船舶を1日15隻に制限─高官筋=報道', which explicitly says TASS cited unnamed senior Iranian sources claiming Iran may restrict Strait of Hormuz traffic to 15 ships a day during a ceasefire. The fetched PANews article closely matches the user's wording and includes the added detail that Iran sought the unfreezing of Iranian assets within two weeks. The corroboration search also surfaced Reuters coverage of the broader ceasefire plan, which is consistent with the context. The main caveat is provenance: the claim rests on Reuters relaying TASS relaying anonymous Iranian sources, not on a directly fetched Iranian official statement or a fetched TASS original. So the claim is plausible and well-corroborated in news reporting, but not confirmed by a fully primary official source in this run.