강유찬
type: MusicGroup
popularity: 2
followers: 141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f1708bddab984390b5dba2afd9b3b62c6d45813996b1adbe135045223cc0c0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ee86613-51f2-4c95-b888-34e99889bf58.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ee86613-51f2-4c95-b888-34e99889bf58.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8ee86613-51f2-4c95-b888-34e99889bf58
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3f1708bddab984390b5dba2afd9b3b62c6d45813996b1adbe135045223cc0c0a","name":"강유찬","registered_at":"2026-06-17T15:28:17Z","symbol":"NIM1438414","token_address":"0xc2e4be5e25bb497717e5d241ca5aae9ead95b426","type":"artist","uuid":"8ee86613-51f2-4c95-b888-34e99889bf58"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1708bddab984390b5dba2afd9b3b62c6d45813996b1adbe135045223cc0c0a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ee86613-51f2-4c95-b888-34e99889bf58.json and https://artists.proofprofile.net/proofs/artist/8ee86613-51f2-4c95-b888-34e99889bf58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x3f1708bddab984390b5dba2afd9b3b62c6d45813996b1adbe135045223cc0c0a","name":"강유찬","registered_at":"2026-06-17T15:28:17Z","symbol":"NIM1438414","token_address":"0xc2e4be5e25bb497717e5d241ca5aae9ead95b426","type":"artist","uuid":"8ee86613-51f2-4c95-b888-34e99889bf58"}
album: 다시 사랑한다고 말해줘 (웹드라마 타임테이블 OST)
  type: MusicAlbum
  date published: 2024-08-19
  track: 다시 사랑한다고 말해줘 (홍연 ver.)
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237469
    explicit: false
    by artist: 강유찬
    in album: 다시 사랑한다고 말해줘 (웹드라마 타임테이블 OST)
      type: MusicAlbum
      date published: 2024-08-19
    isrc code: KRD822400031
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T14:28:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb3e3d23821cac58d6033ba0fec546270b599038f7a19d11c41f8c5b615655cf7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959024
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959024
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRD822400031
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T17:30:38Z
    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 0xb3e3d23821cac58d6033ba0fec546270b599038f7a19d11c41f8c5b615655cf7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:30:38Z), 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/KRD822400031.
      date published: 2026-07-21T17:30:38Z
    audio: 다시 사랑한다고 말해줘 (홍연 ver.)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.315
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.48
      additional property: Energy
        type: PropertyValue
        value: 0.467
      additional property: Speechiness
        type: PropertyValue
        value: 0.096
      additional property: Acousticness
        type: PropertyValue
        value: 0.645
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.317
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.349
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Champagne Poppin’
  type: MusicAlbum
  date published: 2025-07-10
album: REBEL
  type: MusicAlbum
  date published: 2025-10-21