D'ØR21
type: MusicGroup
popularity: 5
followers: 63
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a654b8480f5a44c6b0b49e26d9c3e5e4f038fa8e720e20afb1432ff69948a59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce34efd7-ad20-479c-ba0d-409c7e47583b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce34efd7-ad20-479c-ba0d-409c7e47583b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce34efd7-ad20-479c-ba0d-409c7e47583b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a654b8480f5a44c6b0b49e26d9c3e5e4f038fa8e720e20afb1432ff69948a59","name":"D'ØR21","registered_at":"2026-06-21T00:05:22Z","symbol":"NIM1756197","token_address":"0x37bb822b90b38acb549212d3d6663ca4344bcb67","type":"artist","uuid":"ce34efd7-ad20-479c-ba0d-409c7e47583b"}
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 0x9a654b8480f5a44c6b0b49e26d9c3e5e4f038fa8e720e20afb1432ff69948a59. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce34efd7-ad20-479c-ba0d-409c7e47583b.json and https://artists.proofprofile.net/proofs/artist/ce34efd7-ad20-479c-ba0d-409c7e47583b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x9a654b8480f5a44c6b0b49e26d9c3e5e4f038fa8e720e20afb1432ff69948a59","name":"D'ØR21","registered_at":"2026-06-21T00:05:22Z","symbol":"NIM1756197","token_address":"0x37bb822b90b38acb549212d3d6663ca4344bcb67","type":"artist","uuid":"ce34efd7-ad20-479c-ba0d-409c7e47583b"}
album: No banco de tras do corolla
  type: MusicAlbum
  date published: 2023-12-20
album: Nossos Olhares
  type: MusicAlbum
  date published: 2024-07-06
  track: Nossos Olhares
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156760
    explicit: false
    by artist: D'ØR21
    in album: Nossos Olhares
      type: MusicAlbum
      date published: 2024-07-06
    isrc code: ESA122484758
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T09:29:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x669a0f6902b4af8fc823a80e8745477e9e4d18b2f9cd0843a42aecc019b31e5c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958142
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958142
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA122484758
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:31:40Z
    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 0x669a0f6902b4af8fc823a80e8745477e9e4d18b2f9cd0843a42aecc019b31e5c. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:31:40Z), 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/ESA122484758.
      date published: 2026-07-15T12:31:40Z
    audio: Nossos Olhares
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.086
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.763
      additional property: Energy
        type: PropertyValue
        value: 0.332
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.373
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.288
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.627
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor