劉錦澤
type: MusicGroup
genre: vietnam indie
popularity: 3
followers: 87
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additional property: OTSBitcoinBlock
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-20T05:07:36Z
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  type: MusicAlbum
  date published: 2017-05-09
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  type: MusicAlbum
  date published: 2018-05-16
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  type: MusicAlbum
  date published: 2018-10-30
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  type: MusicAlbum
  date published: 2018-11-09
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  type: MusicAlbum
  date published: 2019-08-02
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  type: MusicAlbum
  date published: 2019-08-02
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  type: MusicAlbum
  date published: 2019-11-19
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  type: MusicAlbum
  date published: 2019-12-13
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  type: MusicAlbum
  date published: 2020-03-12
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  type: MusicAlbum
  date published: 2020-03-25
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  type: MusicAlbum
  date published: 2021-05-27
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  type: MusicAlbum
  date published: 2021-09-09
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  type: MusicAlbum
  date published: 2022-01-14
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  type: MusicAlbum
  date published: 2022-01-15
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  type: MusicAlbum
  date published: 2022-01-16
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  type: MusicAlbum
  date published: 2022-05-10
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  type: MusicAlbum
  date published: 2022-05-18
album: 熬粥
  type: MusicAlbum
  date published: 2022-11-29
track: 十點半的地鐵

十點半的地鐵
type: MusicRecording
duration: PT2M55S
duration ms: 175978
explicit: false
by artist: 劉錦澤
in album: 第三季中國好歌曲導師: 羽泉組
  type: MusicAlbum
  date published: 2017-04-12
isrc code: CNZ691800050
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b4b8c42703bb288d88295a7eff0f5dbed03e14626830797846bfb7c2e32e4a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CNZ691800050.
  date published: 2026-07-02T11:38:34Z
audio: 十點半的地鐵
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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    value: 5
  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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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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  additional property: Mode Name
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