Ivan Barreto
type: MusicGroup
popularity: 20
followers: 777
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc34612136815f75608d13f14685bd05f3b8c6d40295e555d759ca8c569737a18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbfaab63-676b-4aa0-aef4-7e2649f8a2ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bbfaab63-676b-4aa0-aef4-7e2649f8a2ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bbfaab63-676b-4aa0-aef4-7e2649f8a2ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc34612136815f75608d13f14685bd05f3b8c6d40295e555d759ca8c569737a18","name":"Ivan Barreto","registered_at":"2026-06-15T00:23:10Z","symbol":"NIM0623517","token_address":"0x031fa8b60137198de9ef506750a5f5c7171f58c7","type":"artist","uuid":"bbfaab63-676b-4aa0-aef4-7e2649f8a2ff"}
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 0xc34612136815f75608d13f14685bd05f3b8c6d40295e555d759ca8c569737a18. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbfaab63-676b-4aa0-aef4-7e2649f8a2ff.json and https://artists.proofprofile.net/proofs/artist/bbfaab63-676b-4aa0-aef4-7e2649f8a2ff.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T08:55:24Z
  text: {"copyright_id":"0xc34612136815f75608d13f14685bd05f3b8c6d40295e555d759ca8c569737a18","name":"Ivan Barreto","registered_at":"2026-06-15T00:23:10Z","symbol":"NIM0623517","token_address":"0x031fa8b60137198de9ef506750a5f5c7171f58c7","type":"artist","uuid":"bbfaab63-676b-4aa0-aef4-7e2649f8a2ff"}
album: Borboleta
  type: MusicAlbum
  date published: 2020-07-31
album: Good Times
  type: MusicAlbum
  date published: 2025-03-13
  track: Celebration
    type: MusicRecording
    duration: PT4M35S
    duration ms: 275500
    explicit: false
    by artist: Ivan Barreto
    in album: Good Times
      type: MusicAlbum
      date published: 2025-03-13
    isrc code: BR5IA2500006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:24:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x08a01e8960a71792b97065e9702c56c29f1aadb9e922f3113f58a46958ff2b5f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958234
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958234
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5IA2500006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T03:46:09Z
    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 0x08a01e8960a71792b97065e9702c56c29f1aadb9e922f3113f58a46958ff2b5f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BR5IA2500006 — a six-check JSON result.
      date published: 2026-07-16T03:46:09Z
    audio: Celebration
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.015
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.773
      additional property: Energy
        type: PropertyValue
        value: 0.686
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.165
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.587
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.437
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.642
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Another Day in Paradise
    type: MusicRecording
    duration: PT4M51S
    duration ms: 291000
    explicit: false
    by artist: Ivan Barreto
    in album: Good Times
      type: MusicAlbum
      date published: 2025-03-13
    isrc code: BR5IA2500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:23:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe625510f2f0377a663b145f91ecff8288d37cf85bfb46640a6ca0587eee882de
    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/BR5IA2500001
    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 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 0xe625510f2f0377a663b145f91ecff8288d37cf85bfb46640a6ca0587eee882de. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5IA2500001 — a six-check JSON result.
      date published: 2026-07-03T08:56:35Z
    audio: Another Day in Paradise
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 203.783
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.545
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.272
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.332
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.452
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Have You Ever Seen The Rain
  track: Como a Primeira Vez
album: Good Times (acústico)

Loudness (dB)
type: PropertyValue
value: -7.211

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Have You Ever Seen The Rain
type: MusicRecording
duration: PT4M31S
duration ms: 271440
explicit: false
by artist: Ivan Barreto
in album: Good Times
  type: MusicAlbum
  date published: 2025-03-13
isrc code: BR5IA2500002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T18:41:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26c0f1c90ab1a6ef62abd92e3b9f236e0972b2d7f9bce9289958fe696fc5490e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957898
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957898
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5IA2500002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T19:28:48Z
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 0x26c0f1c90ab1a6ef62abd92e3b9f236e0972b2d7f9bce9289958fe696fc5490e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/BR5IA2500002 — a six-check JSON result.
  date published: 2026-07-13T19:28:48Z
audio: Have You Ever Seen The Rain
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.899
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.556
  additional property: Energy
    type: PropertyValue
    value: 0.445
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.479
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.239
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.419
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.438
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Como a Primeira Vez
type: MusicRecording
duration: PT4M44S
duration ms: 284000
explicit: false
by artist: Ivan Barreto
in album: Good Times
  type: MusicAlbum
  date published: 2025-03-13
isrc code: BR5IA2500007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T09:56:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70c7b87ba930655ba436e2a5b92188828ad87308bb91120fe22c2ec7cb93ba0d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958140
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958140
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5IA2500007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T10:05:23Z
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 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 0x70c7b87ba930655ba436e2a5b92188828ad87308bb91120fe22c2ec7cb93ba0d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BR5IA2500007 — a six-check JSON result.
  date published: 2026-07-15T10:05:23Z
audio: Como a Primeira Vez
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.103
  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: 0.466
  additional property: Energy
    type: PropertyValue
    value: 0.4
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.534
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.689
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.281
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.194
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Good Times (acústico)
type: MusicAlbum
date published: 2025-07-18