Maracaiá
type: MusicGroup
popularity: 16
followers: 669
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc44b22aa96575d970ae2cb632b29d073ba4e30816764a309123846639e312631
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fc68234-0ab5-4045-9a1a-947b05c6f64f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fc68234-0ab5-4045-9a1a-947b05c6f64f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fc68234-0ab5-4045-9a1a-947b05c6f64f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc44b22aa96575d970ae2cb632b29d073ba4e30816764a309123846639e312631","name":"Maracaiá","registered_at":"2026-06-14T16:11:51Z","symbol":"NIM0506332","token_address":"0xe34d4e0e699525536f1b7a974cc0d025cbbecde9","type":"artist","uuid":"6fc68234-0ab5-4045-9a1a-947b05c6f64f"}
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 0xc44b22aa96575d970ae2cb632b29d073ba4e30816764a309123846639e312631. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fc68234-0ab5-4045-9a1a-947b05c6f64f.json and https://artists.proofprofile.net/proofs/artist/6fc68234-0ab5-4045-9a1a-947b05c6f64f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:38:09Z
  text: {"copyright_id":"0xc44b22aa96575d970ae2cb632b29d073ba4e30816764a309123846639e312631","name":"Maracaiá","registered_at":"2026-06-14T16:11:51Z","symbol":"NIM0506332","token_address":"0xe34d4e0e699525536f1b7a974cc0d025cbbecde9","type":"artist","uuid":"6fc68234-0ab5-4045-9a1a-947b05c6f64f"}
album: No Miolo do Oco
  type: MusicAlbum
  date published: 2020-03-20
album: Nuncacabando
  type: MusicAlbum
  date published: 2020-03-27
album: Nuncacabando
  type: MusicAlbum
  date published: 2020-03-27
album: No Miolo do Oco
  type: MusicAlbum
  date published: 2020-03-30
album: Carnaval em Preto e Branco
  type: MusicAlbum
  date published: 2020-04-21
album: Carnaval em Preto e Branco
  type: MusicAlbum
  date published: 2020-04-21
album: Cuida
  type: MusicAlbum
  date published: 2020-06-25
album: Cuida
  type: MusicAlbum
  date published: 2020-06-25
album: Orfeu
  type: MusicAlbum
  date published: 2021-12-17
album: Orfeu
  type: MusicAlbum
  date published: 2021-12-17
album: Orfeu
  type: MusicAlbum
  date published: 2021-12-17
album: Nas Veias de Gaia
  type: MusicAlbum
  date published: 2022-11-25
album: Estrela Cão
  type: MusicAlbum
  date published: 2023-06-09
album: Cada Caos
  type: MusicAlbum
  date published: 2024-03-01
album: Mara Hope
  type: MusicAlbum
  date published: 2024-04-12
album: Entremar
  type: MusicAlbum
  date published: 2024-05-17
album: O Jangadeiro da Alvorada
  type: MusicAlbum
  date published: 2024-07-05
  track: Cada Caos
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198631
    explicit: false
    by artist: Maracaiá
    in album: O Jangadeiro da Alvorada
      type: MusicAlbum
      date published: 2024-07-05
    isrc code: BCUGR2400002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T23:08:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x07fd13f7487f8b32088ede6ea46184ddc5765d8234678b85b20aff2aa1e833e4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCUGR2400002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    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 0x07fd13f7487f8b32088ede6ea46184ddc5765d8234678b85b20aff2aa1e833e4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BCUGR2400002 — a six-check JSON result.
      date published: 2026-07-03T00:42:11Z
    audio: Cada Caos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.06
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.617
      additional property: Energy
        type: PropertyValue
        value: 0.759
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.299
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.352
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.289
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Nas Veias de Gaia
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168960
    explicit: false
    by artist: Maracaiá
    in album: O Jangadeiro da Alvorada
      type: MusicAlbum
      date published: 2024-07-05
    isrc code: BCUGR2200025
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T17:17:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x035b4fa53ff7536ed8b7901f512635ff59fabeae4cbcd8d89750c3cb499c50ae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCUGR2200025
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Nas Veias de Gaia

OTSTimestamp
type: PropertyValue
value: 2026-07-05T01:12:41Z

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 0x035b4fa53ff7536ed8b7901f512635ff59fabeae4cbcd8d89750c3cb499c50ae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCUGR2200025 — a six-check JSON result.
date published: 2026-07-05T01:12:41Z

Nas Veias de Gaia
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 125.027
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.635
additional property: Energy
  type: PropertyValue
  value: 0.634
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.133
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.086
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.206
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.221
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor