Calu Santos
type: MusicGroup
popularity: 3
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8634fe03bb14ef64c9338deaa7c19ec82afbbeeab2bbca89f5b2c635536dad71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7421bdc8-2e89-44fb-a2cb-52218087b30e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7421bdc8-2e89-44fb-a2cb-52218087b30e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7421bdc8-2e89-44fb-a2cb-52218087b30e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8634fe03bb14ef64c9338deaa7c19ec82afbbeeab2bbca89f5b2c635536dad71","name":"Calu Santos","registered_at":"2026-06-17T06:03:15Z","symbol":"NIM1303750","token_address":"0x949e49bfba0f35013746eb1c81d2e694a72bcc0b","type":"artist","uuid":"7421bdc8-2e89-44fb-a2cb-52218087b30e"}
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 0x8634fe03bb14ef64c9338deaa7c19ec82afbbeeab2bbca89f5b2c635536dad71. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7421bdc8-2e89-44fb-a2cb-52218087b30e.json and https://artists.proofprofile.net/proofs/artist/7421bdc8-2e89-44fb-a2cb-52218087b30e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x8634fe03bb14ef64c9338deaa7c19ec82afbbeeab2bbca89f5b2c635536dad71","name":"Calu Santos","registered_at":"2026-06-17T06:03:15Z","symbol":"NIM1303750","token_address":"0x949e49bfba0f35013746eb1c81d2e694a72bcc0b","type":"artist","uuid":"7421bdc8-2e89-44fb-a2cb-52218087b30e"}
album: Jogo de Emoções
  type: MusicAlbum
  date published: 2023-11-10
album: Machucado
  type: MusicAlbum
  date published: 2024-08-30
album: Apimentado
  type: MusicAlbum
  date published: 2024-10-24
album: BONDE DO CALU
  type: MusicAlbum
  date published: 2025-01-24
  track: BONDE DO CALU
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125076
    explicit: false
    by artist: Calu Santos
    in album: BONDE DO CALU
      type: MusicAlbum
      date published: 2025-01-24
    isrc code: FR10S2559985
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:20:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x52f6b12c887292dbbbdb2c43a70e458f93ff261f4b986b2b5d3f827bd2805322
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2559985
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x52f6b12c887292dbbbdb2c43a70e458f93ff261f4b986b2b5d3f827bd2805322. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2559985.
      date published: 2026-07-06T01:25:57Z
    audio: BONDE DO CALU
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.006
      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: 0.888
      additional property: Energy
        type: PropertyValue
        value: 0.754
      additional property: Speechiness
        type: PropertyValue
        value: 0.211
      additional property: Acousticness
        type: PropertyValue
        value: 0.052
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.04
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.773
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.061
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor