雙燕姊妹
type: MusicGroup
popularity: 12
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ef6b0589cea9611f0a4b0876846a2d9f78def9698b9eb93c1186348afc3b3a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5f80821-c6fb-4380-9bba-40ac0ddb0661.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5f80821-c6fb-4380-9bba-40ac0ddb0661.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5f80821-c6fb-4380-9bba-40ac0ddb0661
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6ef6b0589cea9611f0a4b0876846a2d9f78def9698b9eb93c1186348afc3b3a1","name":"雙燕姊妹","registered_at":"2026-06-15T01:17:49Z","symbol":"NIM0636587","token_address":"0xdc3590ee3ef9f793badcc4cbe7e51b88e756929a","type":"artist","uuid":"c5f80821-c6fb-4380-9bba-40ac0ddb0661"}
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 0x6ef6b0589cea9611f0a4b0876846a2d9f78def9698b9eb93c1186348afc3b3a1. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5f80821-c6fb-4380-9bba-40ac0ddb0661.json and https://artists.proofprofile.net/proofs/artist/c5f80821-c6fb-4380-9bba-40ac0ddb0661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x6ef6b0589cea9611f0a4b0876846a2d9f78def9698b9eb93c1186348afc3b3a1","name":"雙燕姊妹","registered_at":"2026-06-15T01:17:49Z","symbol":"NIM0636587","token_address":"0xdc3590ee3ef9f793badcc4cbe7e51b88e756929a","type":"artist","uuid":"c5f80821-c6fb-4380-9bba-40ac0ddb0661"}
album: 霧中人
  type: MusicAlbum
  date published: 1971-06-01
album: 戀情三千里
  type: MusicAlbum
  date published: 1980-01-01
  track: 愛的瘋狂
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163666
    explicit: false
    by artist: 雙燕姊妹
    in album: 戀情三千里
      type: MusicAlbum
      date published: 1980-01-01
    isrc code: TWAN78090002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T22:45:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd8a2443dee803d5ea834c71604f796036d99be4936a5172e0dc079f06d900c71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959076
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959076
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWAN78090002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T23:41:40Z
    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 0xd8a2443dee803d5ea834c71604f796036d99be4936a5172e0dc079f06d900c71. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TWAN78090002.
      date published: 2026-07-21T23:41:40Z
    audio: 愛的瘋狂
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.841
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.424
      additional property: Energy
        type: PropertyValue
        value: 0.197
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.761
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.571
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.311
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 霧中人 (2022 Remastered)
  type: MusicAlbum
  date published: 2022-06-13