Proof

Proof of Connection
"Proof of winning the battle in the portal at Disney Castle. Perhaps it has changed Sora."
Japanese	つながりの証
Rōmaji	Tsunagari no Akashi
Item	Rank	Buy	Sell
Proof of Connection	—	—	—

Proof of Nonexistence
"Proof of defeating all the Organization XIII's replica data in the Garden of Assemblage. Perhaps it has changed Sora."
Japanese	存在しない証
Rōmaji	Sonzaishinai Akashi
Item	Rank	Buy	Sell
Proof of Nonexistence	—	—	—

Proof of Peace
"Proof of appeasing the Mushroom XIII. Perhaps it has changed Sora."
Japanese	安らかなる証
Rōmaji	Yasurakanaru Akashi
Item	Rank	Buy	Sell
Proof of Peace	—	—	—

The Proofs are sets of key items which appear in Kingdom Hearts II Final Mix, Kingdom Hearts χ, and Kingdom Hearts III, which are obtained after completing specific side-missions.

Crowns

"Crown" redirects here. You may have been looking for Mission Crown.

Kingdom Hearts II Final Mix

New costume modifications, known as Crowns, are unlocked by obtaining Proofs. These are equipped on Sora automatically and are present at all times, except during cutscenes and while Sora is in a world-specific costume. There are several types of crowns; possessing one Proof grants Sora a Copper Crown, two a Silver Crown, and all three a Gold Crown. The Proof of Connection is obtained by defeating the Lingering Will, the Proof of Nonexistence is rewarded after defeating all of Organization XIII's Replica Data, and the Proof of Peace is given after appeasing the entire Mushroom XIII.

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  Copper Crown

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  Silver Crown

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  Gold Crown

Kingdom Hearts χ

In Kingdom Hearts χ crown accessory items are monthly ranking rewards for events and the Dark Corridor Trials, they are named after the zodiac. Four variants are available: Gold, Silver, Bronze and finally "Charm", which is actually a hair decoration and not a hat like the rest.

Name

Aries

Taurus

Gemini

Cancer

Leo

Virgo

Libra

Scorpio

Sagittarius

Capricorn

Aquarius

Pisces

Gold

Silver

Bronze

Charm

Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-

Bronze, silver, and gold tiaras can be earned as part of the Wardrobe system.

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  Venus's Tiara

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  Royal Tiara

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  Tiara

Kingdom Hearts III

Added in update 1.03 on April 23, 2019, the Proof of Promises is obtained by photographing all 90 Lucky Emblems while the Proof of Times Past is obtained by completing Critical Mode.

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  Proof of Promises

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  Proof of Times Past