Erick & Léo
type: MusicGroup
genre: sertanejo
genre: sertanejo tradicional
genre: sertanejo universitário
popularity: 13
followers: 8525
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3d6c609ee47a36225317fbd34659489cb37c7e7dda918d9165b1408e81ceaa9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953701
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953701
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/766f322c-7a80-4b17-aab5-3676465c1303.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/766f322c-7a80-4b17-aab5-3676465c1303.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/766f322c-7a80-4b17-aab5-3676465c1303
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:16:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd3d6c609ee47a36225317fbd34659489cb37c7e7dda918d9165b1408e81ceaa9","name":"Erick & Léo","registered_at":"2026-06-14T16:57:27Z","symbol":"NIM0517215","token_address":"0x56ddea5016f2230f04b73bba213583fd569ce933","type":"artist","uuid":"766f322c-7a80-4b17-aab5-3676465c1303"}
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 0xd3d6c609ee47a36225317fbd34659489cb37c7e7dda918d9165b1408e81ceaa9. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/766f322c-7a80-4b17-aab5-3676465c1303.json and https://artists.proofprofile.net/proofs/artist/766f322c-7a80-4b17-aab5-3676465c1303.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:16:40Z
  text: {"copyright_id":"0xd3d6c609ee47a36225317fbd34659489cb37c7e7dda918d9165b1408e81ceaa9","name":"Erick & Léo","registered_at":"2026-06-14T16:57:27Z","symbol":"NIM0517215","token_address":"0x56ddea5016f2230f04b73bba213583fd569ce933","type":"artist","uuid":"766f322c-7a80-4b17-aab5-3676465c1303"}
album: Erick & Léo
  type: MusicAlbum
  date published: 2007-01-01
album: Passe Livre
  type: MusicAlbum
  date published: 2016-05-27
album: Noturno
  type: MusicAlbum
  date published: 2016-06-03
  track: Noturno
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182746
    explicit: false
    by artist: Erick & Léo
    in album: Noturno
      type: MusicAlbum
      date published: 2016-06-03
    genre: sertanejo
    genre: sertanejo tradicional
    genre: sertanejo universitário
    isrc code: BR1841600038
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T13:39:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1be2df6a43ade3969de29e18f7c78e36763c5986ee8a114ffcd9135835df6959
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR1841600038
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x1be2df6a43ade3969de29e18f7c78e36763c5986ee8a114ffcd9135835df6959. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BR1841600038.
      date published: 2026-07-17T19:12:23Z
    audio: Noturno
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.003
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.715
      additional property: Energy
        type: PropertyValue
        value: 0.942
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.5
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.945
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.943
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Malandra
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180053
    explicit: false
    by artist: Erick & Léo
    in album: Noturno
      type: MusicAlbum
      date published: 2016-06-03
    genre: sertanejo
    genre: sertanejo tradicional
    genre: sertanejo universitário
    isrc code: BR1841600039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:41:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x071bfcedc10ee348ff5dc9a1b58485693e2d614ef2a50433932f5eb57dc17374
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR1841600039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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 0x071bfcedc10ee348ff5dc9a1b58485693e2d614ef2a50433932f5eb57dc17374. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BR1841600039.
      date published: 2026-07-18T04:13:26Z
    audio: Malandra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.054
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.769
      additional property: Energy
        type: PropertyValue
        value: 0.959
      additional property: Speechiness
        type: PropertyValue
        value: 0.083
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: O Seu Amor É Meu
album: Noite Anônima

Acousticness
type: PropertyValue
value: 0.6

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.35

Valence (Positivity)
type: PropertyValue
value: 0.96

Loudness (dB)
type: PropertyValue
value: -2.504

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

O Seu Amor É Meu
type: MusicAlbum
date published: 2016-09-23

Noite Anônima
type: MusicAlbum
date published: 2016-09-30