US Vice President JD Vance said Monday that the memorandum of understanding between Washington and Tehran was signed digitally the day before, ahead of an in person ceremony apparently set for Friday in Switzerland.

The agreement reportedly halts the US blockade of Iran, reopens the Strait of Hormuz, and begins 60 days of talks on Tehran’s nuclear program. Its full text has not been released, and senior officials offered conflicting hints about its contents throughout the day.

A senior US official confirmed that both Vance and President Donald Trump digitally signed the document on Sunday, with Iranian parliament speaker Mohammad Bagher Ghalibaf signing for Tehran. The move ends the war the US and Israel launched on February 28. Trump first said the text would be public soon, then suggested sometime after Friday, while aides told reporters it could come within a day or two.

The deal sets the structure for nuclear negotiations over the next 60 days, though one official said Washington would know within a few weeks whether a follow on agreement is reachable. Trump warned Sunday that strikes could resume if no accord is reached.

Conditions around the Strait of Hormuz remained unclear. One official said the waterway would reopen immediately but would take time to operate normally, since mines must be cleared and shippers weigh their own risks. Trump claimed it was already partially open and would be fully open by Friday. Vance told CNBC that Washington expects toll free passage over the long term but stopped short of guaranteeing it, leaving open the possibility that Iran could charge tolls after the first 60 days.

Vance, who will attend the ceremony alongside Ghalibaf and Foreign Minister Abbas Araghchi, praised Iran’s leadership and said the US had built useful relationships across Tehran’s system. Trump echoed that warmth, again claiming he had achieved regime change even though the regime remains in place.

The initial document includes an Iranian pledge not to build a nuclear weapon, a promise Tehran has long made. Critics note that Iran’s missile program and enriched uranium stockpiles survive, and that the strait was closed only in response to the offensive.

Iranian and Pakistani sources say the deal also extends a ceasefire to Lebanon. A US official said it was not conditioned on an Israeli withdrawal but envisioned a two way truce covering both Iran and Hezbollah.

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