Dj Callas
type: MusicGroup
genre: afro house
genre: kizomba
genre: kuduro
popularity: 6
followers: 2252
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5166b19b1bc330d094e0cad11890f6526eaa46a6e675d2a6e7d67f66e855519
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/89d0950b-33a0-444b-9866-8f7d2eb747f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89d0950b-33a0-444b-9866-8f7d2eb747f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89d0950b-33a0-444b-9866-8f7d2eb747f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5166b19b1bc330d094e0cad11890f6526eaa46a6e675d2a6e7d67f66e855519","name":"Dj Callas","registered_at":"2026-06-17T13:41:12Z","symbol":"NIM1412852","token_address":"0x255b513bee55ab7d07dfa513503facedd95f6ce9","type":"artist","uuid":"89d0950b-33a0-444b-9866-8f7d2eb747f6"}
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 0xc5166b19b1bc330d094e0cad11890f6526eaa46a6e675d2a6e7d67f66e855519. 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/89d0950b-33a0-444b-9866-8f7d2eb747f6.json and https://artists.proofprofile.net/proofs/artist/89d0950b-33a0-444b-9866-8f7d2eb747f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xc5166b19b1bc330d094e0cad11890f6526eaa46a6e675d2a6e7d67f66e855519","name":"Dj Callas","registered_at":"2026-06-17T13:41:12Z","symbol":"NIM1412852","token_address":"0x255b513bee55ab7d07dfa513503facedd95f6ce9","type":"artist","uuid":"89d0950b-33a0-444b-9866-8f7d2eb747f6"}
album: Ouves & Callas, Vol. 1
  type: MusicAlbum
  date published: 2007-07-01
album: Ninguém é Dono de Ninguém (feat. Bass, MC Cabinda & Nagrelha)
  type: MusicAlbum
  date published: 2018-02-15
album: Skills Part.3 (feat. Hummer Lo, Lukeny Bamba, Damani Van Dunem, Nasty, Verbal & Vanda Mãe Grande)
  type: MusicAlbum
  date published: 2018-02-15
album: Daqui Não Tiro O Pé (feat. Young Double & Rui Orlando)
  type: MusicAlbum
  date published: 2018-02-15
album: A Tua Maneira
  type: MusicAlbum
  date published: 2018-02-15
album: Ouves & Callas, Vol. 2
  type: MusicAlbum
  date published: 2018-04-13
  track: Perfume Langerie
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231183
    explicit: true
    by artist: Dj Callas
    in album: Ouves & Callas, Vol. 2
      type: MusicAlbum
      date published: 2018-04-13
    genre: afro house
    genre: kizomba
    genre: kuduro
    isrc code: USDHM1807479
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T11:27:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x69ab68f3182f780eefc45687cc6f4015709a3ea67c7c7ec7833f1e5267b0579c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM1807479
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x69ab68f3182f780eefc45687cc6f4015709a3ea67c7c7ec7833f1e5267b0579c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDHM1807479.
      date published: 2026-07-17T19:12:23Z
    audio: Perfume Langerie
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.974
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.643
      additional property: Energy
        type: PropertyValue
        value: 0.751
      additional property: Speechiness
        type: PropertyValue
        value: 0.102
      additional property: Acousticness
        type: PropertyValue
        value: 0.086
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.492
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.686
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Skillz Parte 2 (40ena Remix)
  type: MusicAlbum
  date published: 2020-05-10
album: Skillz Parte 1 (40ena Remix)
  type: MusicAlbum
  date published: 2020-05-10
album: Rimas & Tarrachinha (DJ Paparazzi Remix)
  type: MusicAlbum
  date published: 2020-12-18
album: Isso Dói
  type: MusicAlbum
  date published: 2023-06-12
album: Habilidosa
  type: MusicAlbum
  date published: 2025-04-04
album: Crazy
  type: MusicAlbum
  date published: 2025-05-02
album: Muito Love
  type: MusicAlbum
  date published: 2025-05-23
album: TIFA
  type: MusicAlbum
  date published: 2025-08-15
album: TIFA - This Is For Angola
  type: MusicAlbum
  date published: 2025-09-12
track: Tarde Demais
track: Hey Hey (SBF) (feat. Yola Araujo, Eva Rap Diva & Zoca Zoca)

Tarde Demais
type: MusicRecording
duration: PT5M2S
duration ms: 302200
explicit: false
by artist: Dj Callas
by artist: Anselmo Ralph
in album: Team de Sonho, vol. 1
  type: MusicAlbum
  date published: 2012
isrc code: FR6V81466582
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:17:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5eb5515eeaa58bbef051736ce791b6397a41955497223798f4c7b55c30131192
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81466582
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957124
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:53:27+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb5515eeaa58bbef051736ce791b6397a41955497223798f4c7b55c30131192. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR6V81466582.
  date published: 2026-07-08T03:53:27Z
audio: Tarde Demais
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.341
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.69
  additional property: Energy
    type: PropertyValue
    value: 0.516
  additional property: Speechiness
    type: PropertyValue
    value: 0.354
  additional property: Acousticness
    type: PropertyValue
    value: 0.044
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.254
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.57
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.65
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Hey Hey (SBF) (feat. Yola Araujo, Eva Rap Diva & Zoca Zoca)
type: MusicRecording
duration: PT4M43S
duration ms: 283120
explicit: false
by artist: Dj Callas
by artist: Yola Araújo
by artist: Eva Rapdiva
by artist: Zoca Zoca
in album: Team de Sonho, Vol. II
  type: MusicAlbum
  date published: 2015-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057c9f5efda59054e425841cb1df436390177949339a5692c4153093251a643a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AOA031522651.
  date published: 2026-07-29T19:35:34Z
audio: Hey Hey (SBF) (feat. Yola Araujo, Eva Rap Diva & Zoca Zoca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.662
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.7
  additional property: Energy
    type: PropertyValue
    value: 0.876
  additional property: Speechiness
    type: PropertyValue
    value: 0.201
  additional property: Acousticness
    type: PropertyValue
    value: 0.278
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.222
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.467
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.707
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: AOA031522651
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOA031522651
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
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