Rô! Barcellos!
type: MusicGroup
popularity: 15
followers: 860
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf30040c341c4bcc7a0454876adeabf93a51c57b5123cc32717619ca485ffbe62
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44a8f60a-2d38-4d6b-8df1-6207945440b1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/44a8f60a-2d38-4d6b-8df1-6207945440b1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/44a8f60a-2d38-4d6b-8df1-6207945440b1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf30040c341c4bcc7a0454876adeabf93a51c57b5123cc32717619ca485ffbe62","name":"Rô! Barcellos!","registered_at":"2026-06-14T11:39:11Z","symbol":"NIM0441253","token_address":"0xda77eca31caa5d2440cf4025d30da4f4fdf112b5","type":"artist","uuid":"44a8f60a-2d38-4d6b-8df1-6207945440b1"}
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 0xf30040c341c4bcc7a0454876adeabf93a51c57b5123cc32717619ca485ffbe62. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44a8f60a-2d38-4d6b-8df1-6207945440b1.json and https://artists.proofprofile.net/proofs/artist/44a8f60a-2d38-4d6b-8df1-6207945440b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xf30040c341c4bcc7a0454876adeabf93a51c57b5123cc32717619ca485ffbe62","name":"Rô! Barcellos!","registered_at":"2026-06-14T11:39:11Z","symbol":"NIM0441253","token_address":"0xda77eca31caa5d2440cf4025d30da4f4fdf112b5","type":"artist","uuid":"44a8f60a-2d38-4d6b-8df1-6207945440b1"}
album: Músicas de Cura para a Nova Era
  type: MusicAlbum
  date published: 2019-09-18
  track: Preto Velho Curandeiro
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89133
    explicit: false
    by artist: Rô! Barcellos!
    in album: Músicas de Cura para a Nova Era
      type: MusicAlbum
      date published: 2019-09-18
    isrc code: BXRSA1400012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:22:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa1bb3a59206d05f7a20432786f8fcc0e3c4099f3a91430899eed025d1f52927e
    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/BXRSA1400012
    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 0xa1bb3a59206d05f7a20432786f8fcc0e3c4099f3a91430899eed025d1f52927e. 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/BXRSA1400012.
      date published: 2026-07-17T08:20:01Z
    audio: Preto Velho Curandeiro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.887
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.885
      additional property: Energy
        type: PropertyValue
        value: 0.408
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.636
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.684
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.936
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Músicas de Cura para a Nova Era Volume 2 Infinitas Possibilidades
  type: MusicAlbum
  date published: 2020-04-25
album: Nada a Temer, Só Amar e Agradecer
  type: MusicAlbum
  date published: 2020-10-14