João Rezende
type: MusicGroup
popularity: 6
followers: 2325
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba6711f167e2af950255614051e40bd2ec35daa6eaebbf58a5a72849dfad1781
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9390c8c1-82dc-4426-8f74-cc552e42fecf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9390c8c1-82dc-4426-8f74-cc552e42fecf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9390c8c1-82dc-4426-8f74-cc552e42fecf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba6711f167e2af950255614051e40bd2ec35daa6eaebbf58a5a72849dfad1781","name":"João Rezende","registered_at":"2026-06-17T17:30:26Z","symbol":"NIM1467588","token_address":"0xee50a517b769223e1e70ba74d12f355442300910","type":"artist","uuid":"9390c8c1-82dc-4426-8f74-cc552e42fecf"}
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 0xba6711f167e2af950255614051e40bd2ec35daa6eaebbf58a5a72849dfad1781. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9390c8c1-82dc-4426-8f74-cc552e42fecf.json and https://artists.proofprofile.net/proofs/artist/9390c8c1-82dc-4426-8f74-cc552e42fecf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xba6711f167e2af950255614051e40bd2ec35daa6eaebbf58a5a72849dfad1781","name":"João Rezende","registered_at":"2026-06-17T17:30:26Z","symbol":"NIM1467588","token_address":"0xee50a517b769223e1e70ba74d12f355442300910","type":"artist","uuid":"9390c8c1-82dc-4426-8f74-cc552e42fecf"}
album: Cura
  type: MusicAlbum
  date published: 2019-10-31
album: Menina da Casa Amarela (Acústico)
  type: MusicAlbum
  date published: 2019-11-08
  track: Menina da Casa Amarela (Acústico)
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187220
    explicit: false
    by artist: João Rezende
    in album: Menina da Casa Amarela (Acústico)
      type: MusicAlbum
      date published: 2019-11-08
    isrc code: USL4Q1941742
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:34:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3ad00e8f7b06528d86457d72c195dbfdabcd3cf65713d29c24ab841fe6c9d655
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1941742
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x3ad00e8f7b06528d86457d72c195dbfdabcd3cf65713d29c24ab841fe6c9d655. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USL4Q1941742.
      date published: 2026-07-03T08:56:35Z
    audio: Menina da Casa Amarela (Acústico)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.959
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.763
      additional property: Energy
        type: PropertyValue
        value: 0.476
      additional property: Speechiness
        type: PropertyValue
        value: 0.087
      additional property: Acousticness
        type: PropertyValue
        value: 0.811
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.159
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.934
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.292
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Viver Só
  type: MusicAlbum
  date published: 2021-03-17
  track: Viver Só
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202571
    explicit: false
    by artist: João Rezende
    in album: Viver Só
      type: MusicAlbum
      date published: 2021-03-17
    isrc code: USCGJ2177435
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:47:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6d9ead75f77657d5df1eecaaf240335d355cd15d7f9790b4c8ae9462a922956b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2177435
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x6d9ead75f77657d5df1eecaaf240335d355cd15d7f9790b4c8ae9462a922956b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ2177435.
      date published: 2026-07-06T06:56:49Z
    audio: Viver Só
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.867
      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: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.555
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.454
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.225
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Cansei
album: Cansei (Chill Version)

Valence (Positivity)
type: PropertyValue
value: 0.818

Loudness (dB)
type: PropertyValue
value: -7.658

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Cansei
type: MusicAlbum
date published: 2022-06-20

Cansei (Chill Version)
type: MusicAlbum
date published: 2022-06-20