Kallú
type: MusicGroup
popularity: 2
followers: 278
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5930588af6c6c37fe91b35df07a98c79a664a8b07873c6ca679cddbc71a586ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b7a06fa-f118-497e-9105-9459c4a64f40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0b7a06fa-f118-497e-9105-9459c4a64f40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0b7a06fa-f118-497e-9105-9459c4a64f40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5930588af6c6c37fe91b35df07a98c79a664a8b07873c6ca679cddbc71a586ef","name":"Kallú","registered_at":"2026-06-15T17:34:12Z","symbol":"NIM0781338","token_address":"0xb56b304c0438fe6ae2a99e90cc640cf86dd2033d","type":"artist","uuid":"0b7a06fa-f118-497e-9105-9459c4a64f40"}
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 0x5930588af6c6c37fe91b35df07a98c79a664a8b07873c6ca679cddbc71a586ef. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0b7a06fa-f118-497e-9105-9459c4a64f40.json and https://artists.proofprofile.net/proofs/artist/0b7a06fa-f118-497e-9105-9459c4a64f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x5930588af6c6c37fe91b35df07a98c79a664a8b07873c6ca679cddbc71a586ef","name":"Kallú","registered_at":"2026-06-15T17:34:12Z","symbol":"NIM0781338","token_address":"0xb56b304c0438fe6ae2a99e90cc640cf86dd2033d","type":"artist","uuid":"0b7a06fa-f118-497e-9105-9459c4a64f40"}
album: Areia
  type: MusicAlbum
  date published: 2024-04-26
  track: Areia
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194889
    explicit: false
    by artist: Kallú
    in album: Areia
      type: MusicAlbum
      date published: 2024-04-26
    isrc code: QZMZ92408991
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:17:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd11ed5533bf39d0f60f0ffc9f482c24860ce31a48391ef2a52ec3011561e5689
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92408991
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0xd11ed5533bf39d0f60f0ffc9f482c24860ce31a48391ef2a52ec3011561e5689. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZMZ92408991.
      date published: 2026-07-05T04:47:21Z
    audio: Areia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 79.78
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.459
      additional property: Energy
        type: PropertyValue
        value: 0.887
      additional property: Speechiness
        type: PropertyValue
        value: 0.2
      additional property: Acousticness
        type: PropertyValue
        value: 0.413
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.362
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.8
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.328
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor