BARBA & IVAN
type: MusicGroup
popularity: 3
followers: 254
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9de79780e0af58c9b9a14be1418b3c26927b021254a82b2fa2c219c5fa3dd657
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc952169-2ee1-40a7-9b89-56c196f9234e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc952169-2ee1-40a7-9b89-56c196f9234e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc952169-2ee1-40a7-9b89-56c196f9234e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9de79780e0af58c9b9a14be1418b3c26927b021254a82b2fa2c219c5fa3dd657","name":"BARBA & IVAN","registered_at":"2026-06-20T23:22:47Z","symbol":"NIM1746921","token_address":"0x9093284f2c5787ad120acb2a85c94f0faca2c285","type":"artist","uuid":"cc952169-2ee1-40a7-9b89-56c196f9234e"}
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 0x9de79780e0af58c9b9a14be1418b3c26927b021254a82b2fa2c219c5fa3dd657. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc952169-2ee1-40a7-9b89-56c196f9234e.json and https://artists.proofprofile.net/proofs/artist/cc952169-2ee1-40a7-9b89-56c196f9234e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x9de79780e0af58c9b9a14be1418b3c26927b021254a82b2fa2c219c5fa3dd657","name":"BARBA & IVAN","registered_at":"2026-06-20T23:22:47Z","symbol":"NIM1746921","token_address":"0x9093284f2c5787ad120acb2a85c94f0faca2c285","type":"artist","uuid":"cc952169-2ee1-40a7-9b89-56c196f9234e"}
album: 2
  type: MusicAlbum
  date published: 2024-03-01
album: Poeira Cósmica
  type: MusicAlbum
  date published: 2024-05-17
album: Não Me Esqueço
  type: MusicAlbum
  date published: 2024-06-21
album: Amanhecer
  type: MusicAlbum
  date published: 2024-07-19
album: Descendo a Ladeira (Remix)
  type: MusicAlbum
  date published: 2024-08-30
album: Minotauro Colorido
  type: MusicAlbum
  date published: 2024-11-08
album: Barba & Ivan
  type: MusicAlbum
  date published: 2025-03-14
  track: Limbo
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235787
    explicit: false
    by artist: BARBA & IVAN
    in album: Barba & Ivan
      type: MusicAlbum
      date published: 2025-03-14
    isrc code: BRKPP2500002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-29T11:43:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9c4cdc972bc2e9242e14c39101f0099632e69669bd1ae5d3ebada63d4c4ee701
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960105
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960105
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRKPP2500002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-29T12:35:17Z
    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 0x9c4cdc972bc2e9242e14c39101f0099632e69669bd1ae5d3ebada63d4c4ee701. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BRKPP2500002.
      date published: 2026-07-29T12:35:17Z
    audio: Limbo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.035
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.612
      additional property: Energy
        type: PropertyValue
        value: 0.442
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.168
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.008
      additional property: Liveness
        type: PropertyValue
        value: 0.071
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.36
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.27
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Descalço
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187967
    explicit: false
    by artist: BARBA & IVAN
    in album: Barba & Ivan
      type: MusicAlbum
      date published: 2025-03-14
    isrc code: BRKPP2500003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T18:09:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x083de2c5cce0f567c03a55ce6da0659c48969cf3f0b727aa8d3a20c865844677
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960294
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960294
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRKPP2500003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T18:46:00Z
    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 0x083de2c5cce0f567c03a55ce6da0659c48969cf3f0b727aa8d3a20c865844677. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BRKPP2500003.
      date published: 2026-07-30T18:46:00Z
    audio: Descalço
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.566
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.596
      additional property: Energy
        type: PropertyValue
        value: 0.537
      additional property: Speechiness
      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
  track: Sextanoite

Speechiness
type: PropertyValue
value: 0.049

Acousticness
type: PropertyValue
value: 0.016

Instrumentalness
type: PropertyValue
value: 0.518

Liveness
type: PropertyValue
value: 0.219

Valence (Positivity)
type: PropertyValue
value: 0.663

Loudness (dB)
type: PropertyValue
value: -13.561

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

Sextanoite
type: MusicRecording
duration: PT2M59S
duration ms: 179286
explicit: false
by artist: BARBA & IVAN
in album: Barba & Ivan
  type: MusicAlbum
  date published: 2025-03-14
isrc code: BRKPP2500004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:00:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa263eb3849a448d18cf3cc9b8dd5a844189b20e33bb8848b3d966b21e72cef63
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRKPP2500004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xa263eb3849a448d18cf3cc9b8dd5a844189b20e33bb8848b3d966b21e72cef63. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRKPP2500004.
  date published: 2026-07-08T03:22:41Z
audio: Sextanoite
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.021
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.795
  additional property: Energy
    type: PropertyValue
    value: 0.487
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.294
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.108
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.626
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.547
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor