刘思彤
type: MusicGroup
genre: c-pop
genre: mandopop
popularity: 6
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f4f5fc88a66f5ec7e5658b0869a5981809d6b60428aef10e0a2766250b48e7. Chain 2 (Bitcoin): anchored in block 954141 (2026-06-17T21:14:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ef457a5-1b75-42a9-a6a1-43fbebe97afe.json and https://artists.proofprofile.net/proofs/artist/7ef457a5-1b75-42a9-a6a1-43fbebe97afe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:14:35Z
  text: {"copyright_id":"0x17f4f5fc88a66f5ec7e5658b0869a5981809d6b60428aef10e0a2766250b48e7","name":"刘思彤","registered_at":"2026-06-17T10:15:44Z","symbol":"NIM1363936","token_address":"0xc1799635ddd6a1429206a3bf9822b9ac9b2c4ae4","type":"artist","uuid":"7ef457a5-1b75-42a9-a6a1-43fbebe97afe"}
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  type: MusicAlbum
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  date published: 2024-10-17
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2023-02-22
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  type: MusicAlbum
  date published: 2023-02-17
album: 真的快乐吗 (0.8降速版)
  type: MusicAlbum
  date published: 2023-02-02
  track: 真的快乐吗 - 0.8降速版
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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真的快乐吗 - 0.8降速版
type: MusicRecording
duration: PT3M16S
duration ms: 196404
explicit: false
by artist: 刘思彤
in album: 真的快乐吗 (0.8降速版)
  type: MusicAlbum
  date published: 2023-02-02
genre: mandopop
genre: c-pop
isrc code: FR2X42392949
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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  value: true
additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744bab7b211191003e2fdb3f8e79adc5ad14cc452cc67e0cd5eb5e4d2be88e33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR2X42392949.
  date published: 2026-07-02T05:09:12Z
audio: 真的快乐吗 - 0.8降速版
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  additional property: Tempo (BPM)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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