X Calypso
type: MusicGroup
genre: arrocha
genre: brega
genre: calypso
genre: tecnobrega
popularity: 6
followers: 2341
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb351b0540c9e8f48e3f080149966337cab8303e7f0af8bfdcdf1ec6ef7200f35
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953943
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953943
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20fc784c-bfaf-481a-adb2-101cd07cb556.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20fc784c-bfaf-481a-adb2-101cd07cb556.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20fc784c-bfaf-481a-adb2-101cd07cb556
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:59:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb351b0540c9e8f48e3f080149966337cab8303e7f0af8bfdcdf1ec6ef7200f35","name":"X Calypso","registered_at":"2026-06-16T01:08:07Z","symbol":"NIM0889626","token_address":"0xdc6c629d2a65c67c9ca4d3d4b9bd4fc528e68827","type":"artist","uuid":"20fc784c-bfaf-481a-adb2-101cd07cb556"}
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 0xb351b0540c9e8f48e3f080149966337cab8303e7f0af8bfdcdf1ec6ef7200f35. Chain 2 (Bitcoin): anchored in block 953943 (2026-06-16T11:59:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20fc784c-bfaf-481a-adb2-101cd07cb556.json and https://artists.proofprofile.net/proofs/artist/20fc784c-bfaf-481a-adb2-101cd07cb556.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:59:32Z
  text: {"copyright_id":"0xb351b0540c9e8f48e3f080149966337cab8303e7f0af8bfdcdf1ec6ef7200f35","name":"X Calypso","registered_at":"2026-06-16T01:08:07Z","symbol":"NIM0889626","token_address":"0xdc6c629d2a65c67c9ca4d3d4b9bd4fc528e68827","type":"artist","uuid":"20fc784c-bfaf-481a-adb2-101cd07cb556"}
album: X Calypso
  type: MusicAlbum
  date published: 2019-09-18
album: X Calypso
  type: MusicAlbum
  date published: 2019-09-18
  track: Saudade
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222306
    explicit: false
    by artist: X Calypso
    in album: X Calypso
      type: MusicAlbum
      date published: 2019-09-18
    genre: arrocha
    genre: brega
    genre: calypso
    genre: tecnobrega
    isrc code: QZEQU1910273
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:53:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x73f4eac7495dfb6c300ef570846713bd88972c4db6848755a99e84374e834772
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958383
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958383
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZEQU1910273
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:20:01Z
    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 0x73f4eac7495dfb6c300ef570846713bd88972c4db6848755a99e84374e834772. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZEQU1910273.
      date published: 2026-07-17T08:20:01Z
    audio: Saudade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.958
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.842
      additional property: Energy
        type: PropertyValue
        value: 0.606
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.28
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.628
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.368
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: X Calypso
  type: MusicAlbum
  date published: 2019-09-18