Lê Hiếu & Phương Vy
type: MusicGroup
popularity: 7
followers: 192
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86f7b7ec0af4aed02217ae78615d390930fbe5bf4e989c07543aab7ebc4c5315
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89879bd9-9e9b-4d99-88ee-c2efa8d343db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89879bd9-9e9b-4d99-88ee-c2efa8d343db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89879bd9-9e9b-4d99-88ee-c2efa8d343db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86f7b7ec0af4aed02217ae78615d390930fbe5bf4e989c07543aab7ebc4c5315","name":"Lê Hiếu & Phương Vy","registered_at":"2026-06-17T13:42:27Z","symbol":"NIM1413149","token_address":"0x9d2c35e53373f8ad52e9aa4ed06c6ce300b46cf5","type":"artist","uuid":"89879bd9-9e9b-4d99-88ee-c2efa8d343db"}
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 0x86f7b7ec0af4aed02217ae78615d390930fbe5bf4e989c07543aab7ebc4c5315. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89879bd9-9e9b-4d99-88ee-c2efa8d343db.json and https://artists.proofprofile.net/proofs/artist/89879bd9-9e9b-4d99-88ee-c2efa8d343db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x86f7b7ec0af4aed02217ae78615d390930fbe5bf4e989c07543aab7ebc4c5315","name":"Lê Hiếu & Phương Vy","registered_at":"2026-06-17T13:42:27Z","symbol":"NIM1413149","token_address":"0x9d2c35e53373f8ad52e9aa4ed06c6ce300b46cf5","type":"artist","uuid":"89879bd9-9e9b-4d99-88ee-c2efa8d343db"}
album: Mùa Thu Cho Em - Lê Hiếu & Phương Vy
  type: MusicAlbum
  date published: 2012-08-01
  track: 04. Yeu Em Dai Lau - Le Hieu & Phuong Vy
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288992
    explicit: false
    by artist: Lê Hiếu & Phương Vy
    in album: Mùa Thu Cho Em - Lê Hiếu & Phương Vy
      type: MusicAlbum
      date published: 2012-08-01
    isrc code: US7VG1213218
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:35:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd77d4b646071432bfbaaca3620eb1e842bb474417922fc375e9b1b782511dc02
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1213218
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xd77d4b646071432bfbaaca3620eb1e842bb474417922fc375e9b1b782511dc02. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US7VG1213218.
      date published: 2026-07-03T08:56:35Z
    audio: 04. Yeu Em Dai Lau - Le Hieu & Phuong Vy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.854
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.571
      additional property: Energy
        type: PropertyValue
        value: 0.443
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.874
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.145
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.237
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.352
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major