조갑경
type: MusicGroup
genre: city pop
genre: kayokyoku
genre: k-ballad
popularity: 9
followers: 456
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a811126ed5f74706bd1d687e6845a3934d6594889f1bc413c054126ff01da5f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4721d7c-c122-4aaf-bd2a-5fc454822c62.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4721d7c-c122-4aaf-bd2a-5fc454822c62.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4721d7c-c122-4aaf-bd2a-5fc454822c62
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a811126ed5f74706bd1d687e6845a3934d6594889f1bc413c054126ff01da5f","name":"조갑경","registered_at":"2026-06-21T14:37:54Z","symbol":"NIM1949134","token_address":"0x2c5ee3b2cd5b487f08cac68a192c7210d5ee83c3","type":"artist","uuid":"f4721d7c-c122-4aaf-bd2a-5fc454822c62"}
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 0x9a811126ed5f74706bd1d687e6845a3934d6594889f1bc413c054126ff01da5f. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4721d7c-c122-4aaf-bd2a-5fc454822c62.json and https://artists.proofprofile.net/proofs/artist/f4721d7c-c122-4aaf-bd2a-5fc454822c62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x9a811126ed5f74706bd1d687e6845a3934d6594889f1bc413c054126ff01da5f","name":"조갑경","registered_at":"2026-06-21T14:37:54Z","symbol":"NIM1949134","token_address":"0x2c5ee3b2cd5b487f08cac68a192c7210d5ee83c3","type":"artist","uuid":"f4721d7c-c122-4aaf-bd2a-5fc454822c62"}
album: 조갑경
  type: MusicAlbum
  date published: 1989-10-01
  track: 바보같은 미소
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239204
    explicit: false
    by artist: 조갑경
    in album: 조갑경
      type: MusicAlbum
      date published: 1989-10-01
    genre: city pop
    genre: kayokyoku
    genre: k-ballad
    isrc code: QZF452026175
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T04:53:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xec7f095450931dc44af561b0f313b3c8be8aca11391b024c31b9972eb83fb6ce
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF452026175
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0xec7f095450931dc44af561b0f313b3c8be8aca11391b024c31b9972eb83fb6ce. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZF452026175.
      date published: 2026-07-03T09:04:44Z
    audio: 바보같은 미소
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.387
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.456
      additional property: Energy
        type: PropertyValue
        value: 0.277
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.39
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.194
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.967
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 저 깊고 푸른 밤에/입맞춤
  type: MusicAlbum
  date published: 1990-09-01
  track: 내사랑 투유
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248767
    explicit: false
    by artist: 조갑경
    in album: 저 깊고 푸른 밤에/입맞춤
      type: MusicAlbum
      date published: 1990-09-01
    genre: city pop
    genre: kayokyoku
    genre: k-ballad
    isrc code: QZF452026088
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T08:28:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x219b331a8abf5d2e8d4ab4be3dd948ce6c9ea54094bb51f824da3efcfea3a32b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF452026088
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x219b331a8abf5d2e8d4ab4be3dd948ce6c9ea54094bb51f824da3efcfea3a32b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZF452026088.
      date published: 2026-07-03T08:56:35Z
    audio: 내사랑 투유
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.787
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.537
      additional property: Energy
        type: PropertyValue
        value: 0.442
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.526
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 그날을 기다리며/기억할 수 없는 너

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.095

Valence (Positivity)
type: PropertyValue
value: 0.233

Loudness (dB)
type: PropertyValue
value: -7.716

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

그날을 기다리며/기억할 수 없는 너
type: MusicAlbum
date published: 1991-07-01