Nhật Tâm
type: MusicGroup
genre: vinahouse
popularity: 4
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28e031b2c8ed84b6305be3043c0f45326795d9d4803efcb34d0fa00834830a14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954038
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954038
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e32381a-fbdd-4250-8eb4-9b5075ad67bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3e32381a-fbdd-4250-8eb4-9b5075ad67bf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3e32381a-fbdd-4250-8eb4-9b5075ad67bf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:57:22Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x28e031b2c8ed84b6305be3043c0f45326795d9d4803efcb34d0fa00834830a14","name":"Nhật Tâm","registered_at":"2026-06-16T11:14:08Z","symbol":"NIM1034347","token_address":"0x1ff5d48dd715811b2d09f6ce224156fd3314a4fb","type":"artist","uuid":"3e32381a-fbdd-4250-8eb4-9b5075ad67bf"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e031b2c8ed84b6305be3043c0f45326795d9d4803efcb34d0fa00834830a14. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e32381a-fbdd-4250-8eb4-9b5075ad67bf.json and https://artists.proofprofile.net/proofs/artist/3e32381a-fbdd-4250-8eb4-9b5075ad67bf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T02:57:22Z
  text: {"copyright_id":"0x28e031b2c8ed84b6305be3043c0f45326795d9d4803efcb34d0fa00834830a14","name":"Nhật Tâm","registered_at":"2026-06-16T11:14:08Z","symbol":"NIM1034347","token_address":"0x1ff5d48dd715811b2d09f6ce224156fd3314a4fb","type":"artist","uuid":"3e32381a-fbdd-4250-8eb4-9b5075ad67bf"}
album: Trộm Nhìn Nhau
  type: MusicAlbum
  date published: 2022-12-24
  track: LK Mưa Đêm Ngoại Ô
    type: MusicRecording
    duration: PT6M3S
    duration ms: 363242
    explicit: false
    by artist: Nhật Tâm
    in album: Trộm Nhìn Nhau
      type: MusicAlbum
      date published: 2022-12-24
    genre: vinahouse
    isrc code: VNA0F2313996
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T14:35:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea2a8a68358834e4371d636d5f7e3e9b7cceacec39b033cca0495839c77ea07a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958901
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958901
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2313996
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:07:00Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2a8a68358834e4371d636d5f7e3e9b7cceacec39b033cca0495839c77ea07a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2313996 — a six-check JSON result.
      date published: 2026-07-20T15:07:00Z
    audio: LK Mưa Đêm Ngoại Ô
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.918
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.525
      additional property: Energy
        type: PropertyValue
        value: 0.745
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.449
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.384
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.97
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor