Walter Queiroz
type: MusicGroup
popularity: 15
followers: 358
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11201d559b66daec635a7efcab27c000a82cffd2d0fb653d2e6258ccb1c8e3da
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x11201d559b66daec635a7efcab27c000a82cffd2d0fb653d2e6258ccb1c8e3da","name":"Walter Queiroz","registered_at":"2026-06-14T12:26:28Z","symbol":"NIM0452541","token_address":"0xf596952e6a9a3e8123c5abed87549a902d4f7cc5","type":"artist","uuid":"4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2"}
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 0x11201d559b66daec635a7efcab27c000a82cffd2d0fb653d2e6258ccb1c8e3da. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2.json and https://artists.proofprofile.net/proofs/artist/4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x11201d559b66daec635a7efcab27c000a82cffd2d0fb653d2e6258ccb1c8e3da","name":"Walter Queiroz","registered_at":"2026-06-14T12:26:28Z","symbol":"NIM0452541","token_address":"0xf596952e6a9a3e8123c5abed87549a902d4f7cc5","type":"artist","uuid":"4c37cbc2-4bb8-42b5-88e1-5ed5801c36a2"}
album: Quero Ver Subir, Quero Ver Descer
  type: MusicAlbum
  date published: 1975-09-15
album: Felicidade Atual / Namorando a Alegria
  type: MusicAlbum
  date published: 1984-09-29
album: Maluco Pra Te Ver
  type: MusicAlbum
  date published: 1985-09-15
album: Cambalacho
  type: MusicAlbum
  date published: 1986-09-15
  track: Cambalacho
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120000
    explicit: false
    by artist: Walter Queiroz
    in album: Cambalacho
      type: MusicAlbum
      date published: 1986-09-15
    isrc code: BRSGL8600024
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T08:35:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7acd0beb485a33725c424ec3fe5c4a32de62ce1a255d5c8f60e17562553228eb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957680
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957680
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRSGL8600024
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T09:07:22Z
    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 0x7acd0beb485a33725c424ec3fe5c4a32de62ce1a255d5c8f60e17562553228eb. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/BRSGL8600024.
      date published: 2026-07-12T09:07:22Z
    audio: Cambalacho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.616
      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: 0.765
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0.563
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.927
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.321
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Camará
  type: MusicAlbum
  date published: 1986-09-15
album: Sob o Céu da Bahia
  type: MusicAlbum
  date published: 2015-08-15