$ativa
type: MusicGroup
genre: vietnamese hip hop
genre: v-pop
popularity: 16
followers: 4173
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0811cfe8629b7440c29909900fd28b561bae9ec1bb77bb736ffaf8d2705b21b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cf14974-e75a-4bf6-9181-5a6d44cbeb22.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4cf14974-e75a-4bf6-9181-5a6d44cbeb22.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4cf14974-e75a-4bf6-9181-5a6d44cbeb22
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0811cfe8629b7440c29909900fd28b561bae9ec1bb77bb736ffaf8d2705b21b1. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cf14974-e75a-4bf6-9181-5a6d44cbeb22.json and https://artists.proofprofile.net/proofs/artist/4cf14974-e75a-4bf6-9181-5a6d44cbeb22.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
album: MEDUSA
  type: MusicAlbum
  date published: 2020-03-24
album: OK NAH NAH
  type: MusicAlbum
  date published: 2020-09-20
album: Hustle & Flow
  type: MusicAlbum
  date published: 2020-12-31
album: Chỉ còn Mary Jane
  type: MusicAlbum
  date published: 2022-04-19
  track: Chỉ còn Mary Jane
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176000
    explicit: false
    by artist: $ativa
    in album: Chỉ còn Mary Jane
      type: MusicAlbum
      date published: 2022-04-19
    genre: vietnamese hip hop
    genre: v-pop
    isrc code: QZHN62241307
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:50:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x992419414a61e6fca87d58b13c5d0cbe4db9aca89737f8dd464b37e4974a5b37
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62241307
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992419414a61e6fca87d58b13c5d0cbe4db9aca89737f8dd464b37e4974a5b37. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHN62241307.
      date published: 2026-07-03T09:04:44Z
    audio: Chỉ còn Mary Jane
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.981
      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: 0.852
      additional property: Energy
        type: PropertyValue
        value: 0.289
      additional property: Speechiness
        type: PropertyValue
        value: 0.206
      additional property: Acousticness
        type: PropertyValue
        value: 0.209
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.439
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.388
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: CALI SUNSHINE
  type: MusicAlbum
  date published: 2022-12-24