Lee Jang Woo
type: MusicGroup
genre: k-ballad
popularity: 6
followers: 709
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additional property: OTSVerifyInstructions
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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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  date published: 2026-06-21T11:50:32Z
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album: Words I couldn't say
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  date published: 2012-08-25
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    by artist: Lee Jang Woo
    in album: Words I couldn't say
      type: MusicAlbum
      date published: 2012-08-25
    genre: k-ballad
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    additional property: OTSTimestamp
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      value: 2026-07-04T11:19:20Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      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
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd7a41b7204bf23f6c26cd53f872c1799e3c17c60887a710f9bc48f4cf658f4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA381201326.
      date published: 2026-07-04T11:19:20Z
    audio: Words I couldn't say
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        value: 133.994
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        value: 11
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      additional property: Danceability
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album: Saying I Love You
  type: MusicAlbum
  date published: 2013-12-18
  track: Saying I Love You
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    in album: Saying I Love You
      type: MusicAlbum
      date published: 2013-12-18
    genre: k-ballad
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      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
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44d4bf2425f3f8a11d9ab0bcb5f570dac59cf05aae487706fb74cefd7c3f1bf. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA381205830.
      date published: 2026-07-22T07:21:40Z
    audio: Saying I Love You
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album: 나쁜놈이다
album: On my way (2019 Ver.)
album: My Only One (KBS 2TV DRAMA) OST Part.24
album: Will You Marry Me
album: Home for Summer Pt. 6 (Original Television Soundtrack)
album: 꽃길만 걸어요 (Original Televion Soundtrack) Pt. 14
album: Kakao Webtoon "Totori Cultural Center" OST

Valence (Positivity)
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value: 0.352

Loudness (dB)
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value: -5.111

Key Name
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value: C

Mode Name
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value: Major

나쁜놈이다
type: MusicAlbum
date published: 2017-10-20

On my way (2019 Ver.)
type: MusicAlbum
date published: 2018-12-23

My Only One (KBS 2TV DRAMA) OST Part.24
type: MusicAlbum
date published: 2019-01-13

Will You Marry Me
type: MusicAlbum
date published: 2019-04-20

Home for Summer Pt. 6 (Original Television Soundtrack)
type: MusicAlbum
date published: 2019-06-02

꽃길만 걸어요 (Original Televion Soundtrack) Pt. 14
type: MusicAlbum
date published: 2019-12-22

Kakao Webtoon "Totori Cultural Center" OST
type: MusicAlbum
date published: 2025-05-19
track: You Are My Love (Orgel box)
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  duration: PT4M3S
  duration ms: 243855
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  by artist: Lee Jang Woo
  in album: Kakao Webtoon "Totori Cultural Center" OST
    type: MusicAlbum
    date published: 2025-05-19
  genre: k-ballad
  isrc code: KRA382503546
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e75e67710d593ebfba6dd0ebe18f2f5abfa24cd3f3014bac9a9e5613517cef1. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:36:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA382503546.
    date published: 2026-07-17T00:36:34Z
  audio: You Are My Love (Orgel box)
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