Marcelo Kamargo
type: MusicGroup
genre: mpb
popularity: 17
followers: 238
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfdb0ccae7b64a9f195c4f96ff26918943d04c8fc4442767b57bbc1d0a08790af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b51b198d-9485-4578-b6f6-06db99d1f4f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b51b198d-9485-4578-b6f6-06db99d1f4f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b51b198d-9485-4578-b6f6-06db99d1f4f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfdb0ccae7b64a9f195c4f96ff26918943d04c8fc4442767b57bbc1d0a08790af","name":"Marcelo Kamargo","registered_at":"2026-06-14T23:27:03Z","symbol":"NIM0610105","token_address":"0x3a4af462ebff804d426b32712b500c93ae7d5523","type":"artist","uuid":"b51b198d-9485-4578-b6f6-06db99d1f4f4"}
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 0xfdb0ccae7b64a9f195c4f96ff26918943d04c8fc4442767b57bbc1d0a08790af. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b51b198d-9485-4578-b6f6-06db99d1f4f4.json and https://artists.proofprofile.net/proofs/artist/b51b198d-9485-4578-b6f6-06db99d1f4f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xfdb0ccae7b64a9f195c4f96ff26918943d04c8fc4442767b57bbc1d0a08790af","name":"Marcelo Kamargo","registered_at":"2026-06-14T23:27:03Z","symbol":"NIM0610105","token_address":"0x3a4af462ebff804d426b32712b500c93ae7d5523","type":"artist","uuid":"b51b198d-9485-4578-b6f6-06db99d1f4f4"}
album: Clarão da Noite
  type: MusicAlbum
  date published: 2001-04-03
album: Zerundá
  type: MusicAlbum
  date published: 2005-04-26
album: Além do Sol
  type: MusicAlbum
  date published: 2008-04-08
album: 10 Anos (Ao Vivo)
  type: MusicAlbum
  date published: 2011-05-07
album: Ho'oponopono (Ser de Luz)
  type: MusicAlbum
  date published: 2019-09-26
  track: Ho'oponopono (Ser de Luz)
    type: MusicRecording
    duration: PT6M13S
    duration ms: 373529
    explicit: false
    by artist: Marcelo Kamargo
    in album: Ho'oponopono (Ser de Luz)
      type: MusicAlbum
      date published: 2019-09-26
    genre: mpb
    isrc code: BRCCT1900001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T13:17:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9a9d3ce1d88a19050507a043b604c536b3dcf26eab1831dcb4353366ace562ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRCCT1900001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x9a9d3ce1d88a19050507a043b604c536b3dcf26eab1831dcb4353366ace562ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRCCT1900001.
      date published: 2026-07-16T16:14:30Z
    audio: Ho'oponopono (Ser de Luz)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.991
      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: 0.489
      additional property: Energy
        type: PropertyValue
        value: 0.186
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.948
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.235
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.541
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Chico Rei
  type: MusicAlbum
  date published: 2020-11-20
album: Dom de Ser Feliz
  type: MusicAlbum
  date published: 2021-02-19
album: Samba É Amor
  type: MusicAlbum
  date published: 2021-04-16
album: Embriagado Com a Solidão
  type: MusicAlbum
  date published: 2021-04-30
album: O Que o Amor Deixou Em Mim
  type: MusicAlbum
  date published: 2021-05-14
album: Samba É Amor
  type: MusicAlbum
  date published: 2021-05-28
album: Ho'oponopono - Gratidão
  type: MusicAlbum
  date published: 2022-02-25
album: Ho'oponopono - Gratitude
  type: MusicAlbum
  date published: 2022-07-24
album: Nova Onda
  type: MusicAlbum
  date published: 2022-12-09
album: Ela Toca Tambor
  type: MusicAlbum
  date published: 2023-02-02
album: Meu Bem Maior
  type: MusicAlbum
  date published: 2023-07-21
album: Água da Fonte
  type: MusicAlbum
  date published: 2023-08-25
album: Meu Talismã
  type: MusicAlbum
  date published: 2023-09-15
album: Louvação
  type: MusicAlbum
  date published: 2023-10-06
album: Criaturas da Noite
  type: MusicAlbum
  date published: 2024-08-23
album: Chuva Arada
  type: MusicAlbum
  date published: 2024-09-13
album: Cometa
  type: MusicAlbum
  date published: 2024-09-27
album: Sapato Velho
  type: MusicAlbum
  date published: 2024-10-18
album: Meu Lugar
  type: MusicAlbum
  date published: 2024-11-08
album: Cometa
  type: MusicAlbum
  date published: 2024-11-29
  track: Talvez
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232618
    explicit: false
    by artist: Marcelo Kamargo
    in album: Cometa
    genre: mpb
    isrc code: BRKUA2349602
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Talvez

Marcelo Kamargo
type: MusicGroup

Cometa
type: MusicAlbum
date published: 2024-11-29

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-02T23:50:40+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x2373f079602a746a28576b901dc370ea86e952409a88bf1d97264a7663f50982

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956422

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956422

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRKUA2349602

OTSTimestamp
type: PropertyValue
value: 2026-07-03T01:01:38Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2373f079602a746a28576b901dc370ea86e952409a88bf1d97264a7663f50982. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRKUA2349602.
date published: 2026-07-03T01:01:38Z

Talvez
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 171.879
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: 0.448
additional property: Energy
  type: PropertyValue
  value: 0.404
additional property: Speechiness
  type: PropertyValue
  value: 0.039
additional property: Acousticness
  type: PropertyValue
  value: 0.626
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.081
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.386
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.257
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major