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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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album: Jaejoo Boys
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-18T04:13:26Z
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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album: Peace
album: Part of Dream
album: 마지막 춤은 나와 함께
album: 마지막 춤은 나와 함께 [Mini Album]
album: 손잡고 허밍
album: 유년에게
album: 남쪽섬으로부터
album: 꿈으로 Into The Dream
album: 어바웃 재주소년 About Jaejoo Boys
album: 오래된 바다 Old Sea
album: 달리자 여름밤2
album: 달리자 여름밤 vol.2
album: 달리자 여름밤 2
album: From Me To You
album: First Trip
album: Who Cares If You Can't
album: 못하면 어때
album: 지났을 줄이야
album: 펫
album: Pet
album: Pet 펫
album: Night in December
album: Night in December 12월 늦은 밤
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album: 왠지 너는
album: Somehow you are 왠지 너는
album: Somehow you are
album: Go Dream
album: About Jaejooboys
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album: Drive in Jeju
album: HyeEunYee
album: 혜은이
album: Remake Pt. 1 부르고 싶은 노래
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album: Remake Pt. 2 A Song from Childhood
album: Remake Pt. 2 어린 시절의 노래
album: 사천, 그 해변으로
album: 20 years old
album: 스무살
album: Night picnic
album: Anthology 2
album: 우리들의 도초도
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Part of Dream
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마지막 춤은 나와 함께
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track: 마지막 춤은 나와 함께
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T11:31:45Z
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마지막 춤은 나와 함께
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date published: 2009-01-06

마지막 춤은 나와 함께 [Mini Album]
type: MusicAlbum
date published: 2009-01-06

손잡고 허밍
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date published: 2010-04-15

손잡고 허밍
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date published: 2010-04-15

유년에게
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date published: 2010-08-18

유년에게
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date published: 2010-08-18

남쪽섬으로부터
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date published: 2012-06-27

꿈으로 Into The Dream
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date published: 2014-05-02

어바웃 재주소년 About Jaejoo Boys
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date published: 2014-12-24

오래된 바다 Old Sea
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date published: 2015-05-20

달리자 여름밤2
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date published: 2015-08-10

달리자 여름밤 vol.2
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date published: 2015-08-10

달리자 여름밤 2
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date published: 2015-08-10

From Me To You
type: MusicAlbum
date published: 2018-02-09

First Trip
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date published: 2018-07-11

Who Cares If You Can't
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date published: 2018-09-05

못하면 어때
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date published: 2018-09-05

지났을 줄이야
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지났을 줄이야
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date published: 2018-11-27

지났을 줄이야
type: MusicAlbum
date published: 2018-11-27

펫
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date published: 2019-01-29

펫
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date published: 2019-01-29

Pet
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date published: 2019-01-29

Pet 펫
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date published: 2019-01-29

펫
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date published: 2019-01-29

Night in December
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date published: 2019-11-29

Night in December 12월 늦은 밤
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date published: 2019-11-29

12월 늦은 밤
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date published: 2019-11-29

12월 늦은 밤
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date published: 2019-11-29

12월 늦은 밤
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date published: 2019-11-29

왠지 너는
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date published: 2020-04-27

왠지 너는
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date published: 2020-04-27

왠지 너는
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date published: 2020-04-27

Somehow you are 왠지 너는
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date published: 2020-04-27

Somehow you are
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date published: 2020-04-27

Go Dream
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Go Dream
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date published: 2020-06-08

Go Dream
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date published: 2020-06-08

About Jaejooboys
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date published: 2020-06-10

About Jaejooboys
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date published: 2020-06-10

Old Sea
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Old Sea
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date published: 2020-06-11

Drive in Jeju
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Drive in Jeju
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date published: 2020-06-15

Drive in Jeju
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T19:12:23Z
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HyeEunYee
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date published: 2020-06-29

혜은이
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date published: 2020-06-29

Remake Pt. 1 부르고 싶은 노래
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date published: 2020-12-31

Remake Pt. 1 The Songs I Want to Sing
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date published: 2020-12-31

Remake Pt. 2 A Song from Childhood
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Remake Pt. 2 어린 시절의 노래
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date published: 2021-08-30

사천, 그 해변으로
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20 years old
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date published: 2023-06-15

스무살
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Night picnic
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Anthology 2
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우리들의 도초도
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머물러 줄래
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