孫燕姿
type: MusicGroup
genre: c-pop
genre: mandopop
genre: taiwanese pop
popularity: 27
followers: 1596
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e3688d73bc2a11bdb245a520b937834399f71d4c6d6d22c184c8a3a0429e120
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c285e963-6af4-41f8-ae09-68e994635964.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c285e963-6af4-41f8-ae09-68e994635964.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c285e963-6af4-41f8-ae09-68e994635964
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4e3688d73bc2a11bdb245a520b937834399f71d4c6d6d22c184c8a3a0429e120","name":"孫燕姿","registered_at":"2026-06-12T09:03:01Z","symbol":"NIM0250318","token_address":"0x25303d4082028ac153ac1939d6b11d9e44cfba1b","type":"artist","uuid":"c285e963-6af4-41f8-ae09-68e994635964"}
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 0x4e3688d73bc2a11bdb245a520b937834399f71d4c6d6d22c184c8a3a0429e120. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c285e963-6af4-41f8-ae09-68e994635964.json and https://artists.proofprofile.net/proofs/artist/c285e963-6af4-41f8-ae09-68e994635964.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4e3688d73bc2a11bdb245a520b937834399f71d4c6d6d22c184c8a3a0429e120","name":"孫燕姿","registered_at":"2026-06-12T09:03:01Z","symbol":"NIM0250318","token_address":"0x25303d4082028ac153ac1939d6b11d9e44cfba1b","type":"artist","uuid":"c285e963-6af4-41f8-ae09-68e994635964"}
album: Leave
  type: MusicAlbum
  date published: 2002
  track: 不同
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220200
    explicit: false
    by artist: 孫燕姿
    in album: Leave
      type: MusicAlbum
      date published: 2002
    genre: c-pop
    genre: mandopop
    genre: taiwanese pop
    isrc code: TWA530224207
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T20:43:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x874d8a8bf0a2a5cfb147c3565bd36805fd358124bd11f532bb21034dcfdaa607
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957756
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957756
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWA530224207
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:36:27Z
    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 0x874d8a8bf0a2a5cfb147c3565bd36805fd358124bd11f532bb21034dcfdaa607. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TWA530224207.
      date published: 2026-07-12T21:36:27Z
    audio: 不同
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.993
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.684
      additional property: Energy
        type: PropertyValue
        value: 0.726
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.257
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.742
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.862
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 我想
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270600
    explicit: false
    by artist: 孫燕姿
    in album: Leave
      type: MusicAlbum
      date published: 2002
    genre: c-pop
    genre: mandopop
    genre: taiwanese pop
    isrc code: TWA530224209
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:47:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77bcc4cecb5aae191ccea0dc255f9a919daa4a45afb4f9336b30c2bd33160908
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TWA530224209
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0x77bcc4cecb5aae191ccea0dc255f9a919daa4a45afb4f9336b30c2bd33160908. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TWA530224209.
      date published: 2026-07-03T23:28:02Z
    audio: 我想
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.984
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.658
      additional property: Energy
        type: PropertyValue
        value: 0.694
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.601
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.137

Valence (Positivity)
type: PropertyValue
value: 0.579

Loudness (dB)
type: PropertyValue
value: -6.098

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major