Kada ZS
type: MusicGroup
popularity: 3
followers: 520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c87dce987d4e02a1ecac03b3518037085c3562068868c07b4faaf20bd2014ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a527abef-d119-4809-989b-f4832368e5f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a527abef-d119-4809-989b-f4832368e5f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a527abef-d119-4809-989b-f4832368e5f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c87dce987d4e02a1ecac03b3518037085c3562068868c07b4faaf20bd2014ff","name":"Kada ZS","registered_at":"2026-06-20T07:34:08Z","symbol":"NIM1554804","token_address":"0xa21e319e891de53b2093ea5cd3fa280e90b0cde7","type":"artist","uuid":"a527abef-d119-4809-989b-f4832368e5f6"}
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 0x8c87dce987d4e02a1ecac03b3518037085c3562068868c07b4faaf20bd2014ff. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a527abef-d119-4809-989b-f4832368e5f6.json and https://artists.proofprofile.net/proofs/artist/a527abef-d119-4809-989b-f4832368e5f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x8c87dce987d4e02a1ecac03b3518037085c3562068868c07b4faaf20bd2014ff","name":"Kada ZS","registered_at":"2026-06-20T07:34:08Z","symbol":"NIM1554804","token_address":"0xa21e319e891de53b2093ea5cd3fa280e90b0cde7","type":"artist","uuid":"a527abef-d119-4809-989b-f4832368e5f6"}
album: Tango
  type: MusicAlbum
  date published: 2024-03-28
track: Certas Escolhas

Certas Escolhas
type: MusicRecording
duration: PT2M29S
duration ms: 149647
explicit: false
by artist: MC Franco
by artist: Kada ZS
by artist: Basili no Beat
in album: Certas Escolhas
  type: MusicAlbum
  date published: 2023-07-20
genre: funk-consciente
isrc code: BR90B2302319
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:11:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x586f0e1fd1e3be56c723631ab46d25471eb07414bc7aa63b59dd02b6a3fd2453
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR90B2302319
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x586f0e1fd1e3be56c723631ab46d25471eb07414bc7aa63b59dd02b6a3fd2453. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BR90B2302319.
  date published: 2026-07-08T03:20:19Z
audio: Certas Escolhas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.032
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.884
  additional property: Energy
    type: PropertyValue
    value: 0.503
  additional property: Speechiness
    type: PropertyValue
    value: 0.261
  additional property: Acousticness
    type: PropertyValue
    value: 0.502
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.59
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.443
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor