Waldo César
type: MusicGroup
genre: arrocha
genre: bolero
genre: brega
genre: seresta
popularity: 8
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e6a52cb4c9053e032b087d5a48d24e909d713aa10f2022bb0770219156675bc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5a9d3ae-4d90-48f6-9ba2-d046932c787f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5a9d3ae-4d90-48f6-9ba2-d046932c787f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5a9d3ae-4d90-48f6-9ba2-d046932c787f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6e6a52cb4c9053e032b087d5a48d24e909d713aa10f2022bb0770219156675bc","name":"Waldo César","registered_at":"2026-06-20T20:50:16Z","symbol":"NIM1712295","token_address":"0xc3ccbc9dee9bb1c949f13661c9bc4a808ccfc3fd","type":"artist","uuid":"c5a9d3ae-4d90-48f6-9ba2-d046932c787f"}
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 0x6e6a52cb4c9053e032b087d5a48d24e909d713aa10f2022bb0770219156675bc. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5a9d3ae-4d90-48f6-9ba2-d046932c787f.json and https://artists.proofprofile.net/proofs/artist/c5a9d3ae-4d90-48f6-9ba2-d046932c787f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x6e6a52cb4c9053e032b087d5a48d24e909d713aa10f2022bb0770219156675bc","name":"Waldo César","registered_at":"2026-06-20T20:50:16Z","symbol":"NIM1712295","token_address":"0xc3ccbc9dee9bb1c949f13661c9bc4a808ccfc3fd","type":"artist","uuid":"c5a9d3ae-4d90-48f6-9ba2-d046932c787f"}
album: O Carpinteiro
  type: MusicAlbum
  date published: 2022-05-02
album: Amor e Loucura
  type: MusicAlbum
  date published: 2022-12-23
album: Sucessos Inesquecíveis
  type: MusicAlbum
  date published: 2023-08-10
  track: Ponte Aerea pra Shangri-La
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205454
    explicit: false
    by artist: Waldo César
    in album: Sucessos Inesquecíveis
      type: MusicAlbum
      date published: 2023-08-10
    genre: arrocha
    genre: bolero
    genre: brega
    genre: seresta
    isrc code: QZNJY2332514
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:30:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x443112084a9382455ed6e35273aad05636c43c45dd11385ff78bbb30447f8c52
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958842
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958842
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2332514
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:32:39Z
    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 0x443112084a9382455ed6e35273aad05636c43c45dd11385ff78bbb30447f8c52. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:32:39Z), 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/QZNJY2332514.
      date published: 2026-07-20T10:32:39Z
    audio: Ponte Aerea pra Shangri-La
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.511
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.624
      additional property: Energy
        type: PropertyValue
        value: 0.96
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.208
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.407
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.758
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.351
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Summer Holiday
  type: MusicAlbum
  date published: 2023-11-24
album: Preciso Lhe Encontrar
  type: MusicAlbum
  date published: 2024-08-02