Drum7
type: MusicGroup
genre: vietnamese hip hop
genre: vinahouse
genre: v-pop
popularity: 50
followers: 15457
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2a29191487c70d7ff73a62700b9867234c41076e544ba16587060502e911daa7
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/ad2df366-f6cb-400d-98c2-440350664e2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad2df366-f6cb-400d-98c2-440350664e2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad2df366-f6cb-400d-98c2-440350664e2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x2a29191487c70d7ff73a62700b9867234c41076e544ba16587060502e911daa7. 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/ad2df366-f6cb-400d-98c2-440350664e2c.json and https://artists.proofprofile.net/proofs/artist/ad2df366-f6cb-400d-98c2-440350664e2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Cô Ấy Ốm Rồi
  type: MusicAlbum
  date published: 2020-09-18
album: Luv U 300.000 Kilometers
  type: MusicAlbum
  date published: 2021
album: Yêu Đi Em Đừng Sợ
  type: MusicAlbum
  date published: 2021-03-06
album: Này là bài hát dành cho mấy bạn nhớ người iu (feat. YLing)
  type: MusicAlbum
  date published: 2021-03-14
album: Luv U 300.000 Kilometers
  type: MusicAlbum
  date published: 2021-08-15
album: Luv U 300.000 Kilometers (Remix)
  type: MusicAlbum
  date published: 2021-08-23
album: Hỷ Bi
  type: MusicAlbum
  date published: 2022-06-11
album: Hỷ Bi (Slowed Version)
  type: MusicAlbum
  date published: 2022-07-01
album: Hỷ Bi (Lofi Version)
  type: MusicAlbum
  date published: 2022-07-02
album: Luv U 300.000 Kms (Lofi Version)
  type: MusicAlbum
  date published: 2022-10-28
album: THEME SONG MISS COSMO VIETNAM 2023
  type: MusicAlbum
  date published: 2023-12-02
  track: THEME SONG MISS COSMO VIETNAM 2023
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211428
    explicit: false
    by artist: Drum7
    in album: THEME SONG MISS COSMO VIETNAM 2023
      type: MusicAlbum
      date published: 2023-12-02
    genre: vietnamese hip hop
    genre: vinahouse
    genre: v-pop
    isrc code: QZYHM2372417
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:19:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x387115583e85835992c739def3ecc17ca36d9c174d0e6b5cec56c850778493cf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYHM2372417
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x387115583e85835992c739def3ecc17ca36d9c174d0e6b5cec56c850778493cf. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZYHM2372417.
      date published: 2026-07-05T10:01:46Z
    audio: THEME SONG MISS COSMO VIETNAM 2023
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.081
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.546
      additional property: Energy
        type: PropertyValue
        value: 0.807
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.075
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.342
      additional property: Liveness
        type: PropertyValue
        value: 0.347
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.236
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.789
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
track: MỘT CÚ LỪA
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180480
  explicit: false
  by artist: Chị Đẹp Đạp Gió Rẽ Sóng
  by artist: Kiều Anh
  by artist: Châu Tuyết Vân
  by artist: Xuân Nghi
  by artist: DJ Mie
  by artist: Drum7
  in album: Chị Đẹp Đạp Gió 2024 - Công Diễn 1
    type: MusicAlbum
    date published: 2024-11-16
  isrc code: DGA0R2464950
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T22:14:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb46e74aaecd3441d63c6d76eb0dea527124bc4a2e3d6c77bc044d7dc3ab31ab2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2464950
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  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 0xb46e74aaecd3441d63c6d76eb0dea527124bc4a2e3d6c77bc044d7dc3ab31ab2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA0R2464950.
    date published: 2026-06-13T12:47:07Z
  audio: MỘT CÚ LỪA

MỘT CÚ LỪA
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 135.018
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.787
additional property: Energy
  type: PropertyValue
  value: 0.707
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.109
additional property: Instrumentalness
  type: PropertyValue
  value: 0.015
additional property: Liveness
  type: PropertyValue
  value: 0.143
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.434
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.249
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor