Mar Rivière
type: MusicGroup
popularity: 4
followers: 275
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59ac4afef32ad639d186a2857059d288ed9b03a2190ca8354c5100c9cdfb5ab3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039ec59d-cf7c-4e5d-aecc-1c5fdad23309.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/039ec59d-cf7c-4e5d-aecc-1c5fdad23309.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/039ec59d-cf7c-4e5d-aecc-1c5fdad23309
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59ac4afef32ad639d186a2857059d288ed9b03a2190ca8354c5100c9cdfb5ab3","name":"Mar Rivière","registered_at":"2026-06-15T14:53:44Z","symbol":"NIM0743032","token_address":"0x5f38cd1a7ae6ac6f27f9c2daa68b49274c43591d","type":"artist","uuid":"039ec59d-cf7c-4e5d-aecc-1c5fdad23309"}
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 0x59ac4afef32ad639d186a2857059d288ed9b03a2190ca8354c5100c9cdfb5ab3. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/039ec59d-cf7c-4e5d-aecc-1c5fdad23309.json and https://artists.proofprofile.net/proofs/artist/039ec59d-cf7c-4e5d-aecc-1c5fdad23309.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x59ac4afef32ad639d186a2857059d288ed9b03a2190ca8354c5100c9cdfb5ab3","name":"Mar Rivière","registered_at":"2026-06-15T14:53:44Z","symbol":"NIM0743032","token_address":"0x5f38cd1a7ae6ac6f27f9c2daa68b49274c43591d","type":"artist","uuid":"039ec59d-cf7c-4e5d-aecc-1c5fdad23309"}
album: EIGHTEEN
  type: MusicAlbum
  date published: 2021-11-26
album: Queen of Hearts
  type: MusicAlbum
  date published: 2023-10-13
album: Caleidoscopio
  type: MusicAlbum
  date published: 2024-05-31
album: La Tormenta De Final De Verano
  type: MusicAlbum
  date published: 2024-09-27
album: La Última Apuesta
  type: MusicAlbum
  date published: 2025-01-17
  track: La Última Apuesta
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216716
    explicit: false
    by artist: Mar Rivière
    in album: La Última Apuesta
      type: MusicAlbum
      date published: 2025-01-17
    isrc code: QZZ7X2499712
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:53:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x640a05c8225080802396b310c8095d59b93e01d2b2556b735178c852cc3d1c86
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958607
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958607
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2499712
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:01:11Z
    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 0x640a05c8225080802396b310c8095d59b93e01d2b2556b735178c852cc3d1c86. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZZ7X2499712 — a six-check JSON result.
      date published: 2026-07-18T21:01:11Z
    audio: La Última Apuesta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.976
      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: 0.716
      additional property: Energy
        type: PropertyValue
        value: 0.586
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.454
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.542
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.83
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: La Terraza del Segundo Piso
  type: MusicAlbum
  date published: 2025-06-20
album: Destiempo
  type: MusicAlbum
  date published: 2025-09-05
  track: Destiempo
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193015
    explicit: false
    by artist: Mar Rivière
    in album: Destiempo
      type: MusicAlbum
      date published: 2025-09-05
    isrc code: TCAJY2542607
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T13:41:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe5372b082553267849432a7839024cd736147865d5cb56e2c2a93a87f7e2e59b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJY2542607
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xe5372b082553267849432a7839024cd736147865d5cb56e2c2a93a87f7e2e59b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJY2542607 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: Destiempo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.247
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.552
      additional property: Energy
        type: PropertyValue
        value: 0.393
      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

Speechiness
type: PropertyValue
value: 0.047

Acousticness
type: PropertyValue
value: 0.61

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.284

Valence (Positivity)
type: PropertyValue
value: 0.373

Loudness (dB)
type: PropertyValue
value: -5.658

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major