Jean & Marcos
type: MusicGroup
popularity: 2
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ce664be6b6b6554f5263fc46060bbfcac6cda72998fc4502c654bf00313e455
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8da6420d-6f12-4d15-8d1d-7be45dc0d199.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8da6420d-6f12-4d15-8d1d-7be45dc0d199.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8da6420d-6f12-4d15-8d1d-7be45dc0d199
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ce664be6b6b6554f5263fc46060bbfcac6cda72998fc4502c654bf00313e455","name":"Jean & Marcos","registered_at":"2026-06-17T15:03:17Z","symbol":"NIM1432442","token_address":"0x70bbcf4e37553d998a0c140f5534faf344b1b596","type":"artist","uuid":"8da6420d-6f12-4d15-8d1d-7be45dc0d199"}
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 0x2ce664be6b6b6554f5263fc46060bbfcac6cda72998fc4502c654bf00313e455. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8da6420d-6f12-4d15-8d1d-7be45dc0d199.json and https://artists.proofprofile.net/proofs/artist/8da6420d-6f12-4d15-8d1d-7be45dc0d199.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x2ce664be6b6b6554f5263fc46060bbfcac6cda72998fc4502c654bf00313e455","name":"Jean & Marcos","registered_at":"2026-06-17T15:03:17Z","symbol":"NIM1432442","token_address":"0x70bbcf4e37553d998a0c140f5534faf344b1b596","type":"artist","uuid":"8da6420d-6f12-4d15-8d1d-7be45dc0d199"}
album: Tô Morrendo de Saudade
  type: MusicAlbum
  date published: 1991
  track: Tô Morrendo de Saudade
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228012
    explicit: false
    by artist: Jean & Marcos
    in album: Tô Morrendo de Saudade
      type: MusicAlbum
      date published: 1991
    isrc code: QZGLM2557265
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T09:15:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeb72e32e9e896394979835be7ab638c348f373b631efdbb50398ec4cae6af532
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2557265
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0xeb72e32e9e896394979835be7ab638c348f373b631efdbb50398ec4cae6af532. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZGLM2557265.
      date published: 2026-07-05T10:59:37Z
    audio: Tô Morrendo de Saudade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.459
      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: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.713
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.729
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.235
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.886
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.144
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Pai Nosso Herói
  type: MusicAlbum
  date published: 2007
album: Até Que o Sol Se Apague
  type: MusicAlbum
  date published: 2020-10-06