Rê Freitas
type: MusicGroup
genre: nova mpb
popularity: 8
followers: 266
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3a1cfb3a71edaf3045596f171da6a17852486df5fd8c0af1b396fc18075f6c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953982
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953982
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cbbcbea-fde0-4c79-8982-34727c6a4005.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cbbcbea-fde0-4c79-8982-34727c6a4005.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cbbcbea-fde0-4c79-8982-34727c6a4005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:42:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe3a1cfb3a71edaf3045596f171da6a17852486df5fd8c0af1b396fc18075f6c4","name":"Rê Freitas","registered_at":"2026-06-16T05:06:54Z","symbol":"NIM0946665","token_address":"0xe0a07f0cd5153407721d3e2566fdcdff03a3cc72","type":"artist","uuid":"2cbbcbea-fde0-4c79-8982-34727c6a4005"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a1cfb3a71edaf3045596f171da6a17852486df5fd8c0af1b396fc18075f6c4. Chain 2 (Bitcoin): anchored in block 953982 (2026-06-16T17:42:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cbbcbea-fde0-4c79-8982-34727c6a4005.json and https://artists.proofprofile.net/proofs/artist/2cbbcbea-fde0-4c79-8982-34727c6a4005.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T17:42:23Z
  text: {"copyright_id":"0xe3a1cfb3a71edaf3045596f171da6a17852486df5fd8c0af1b396fc18075f6c4","name":"Rê Freitas","registered_at":"2026-06-16T05:06:54Z","symbol":"NIM0946665","token_address":"0xe0a07f0cd5153407721d3e2566fdcdff03a3cc72","type":"artist","uuid":"2cbbcbea-fde0-4c79-8982-34727c6a4005"}
album: Domingo
  type: MusicAlbum
  date published: 2023-09-14
album: Não Me Deixa Passar
  type: MusicAlbum
  date published: 2023-12-06
album: Seu Dengo
  type: MusicAlbum
  date published: 2024-03-13
album: Cheiro de Flor
  type: MusicAlbum
  date published: 2024-06-11
album: Me Deixe
  type: MusicAlbum
  date published: 2025-02-18
  track: Me Deixe
    type: MusicRecording
    duration: PT2M14S
    duration ms: 134584
    explicit: false
    by artist: Rê Freitas
    in album: Me Deixe
      type: MusicAlbum
      date published: 2025-02-18
    genre: nova mpb
    isrc code: BCRT62500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:48:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd181fccd040eafa59c82811a36a04c22830efdd03020e77d2464c8cb3de306db
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958242
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958242
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCRT62500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:02:52Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd181fccd040eafa59c82811a36a04c22830efdd03020e77d2464c8cb3de306db. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCRT62500001 — a six-check JSON result.
      date published: 2026-07-16T05:02:52Z
    audio: Me Deixe
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.943
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.727
      additional property: Energy
        type: PropertyValue
        value: 0.869
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.16
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.676
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.712
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor