D' MARCEL AGRUPACIÓN MUSICAL
type: MusicGroup
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe102871d7c636623a9b9b6665f7610b8e29b9be4877e94e5429f8cb6b4adc9e6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bec8ee95-6802-4755-9188-78d3c8938965.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bec8ee95-6802-4755-9188-78d3c8938965.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bec8ee95-6802-4755-9188-78d3c8938965
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe102871d7c636623a9b9b6665f7610b8e29b9be4877e94e5429f8cb6b4adc9e6","name":"D' MARCEL AGRUPACIÓN MUSICAL","registered_at":"2026-06-20T18:30:40Z","symbol":"NIM1679677","token_address":"0x27bbc597445bbe4b5413e327573241530a83a5da","type":"artist","uuid":"bec8ee95-6802-4755-9188-78d3c8938965"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe102871d7c636623a9b9b6665f7610b8e29b9be4877e94e5429f8cb6b4adc9e6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bec8ee95-6802-4755-9188-78d3c8938965.json and https://artists.proofprofile.net/proofs/artist/bec8ee95-6802-4755-9188-78d3c8938965.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xe102871d7c636623a9b9b6665f7610b8e29b9be4877e94e5429f8cb6b4adc9e6","name":"D' MARCEL AGRUPACIÓN MUSICAL","registered_at":"2026-06-20T18:30:40Z","symbol":"NIM1679677","token_address":"0x27bbc597445bbe4b5413e327573241530a83a5da","type":"artist","uuid":"bec8ee95-6802-4755-9188-78d3c8938965"}
album: ERES TÚ
  type: MusicAlbum
  date published: 2025-06-13
  track: ERES TÚ
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196238
    explicit: false
    by artist: D' MARCEL AGRUPACIÓN MUSICAL
    in album: ERES TÚ
      type: MusicAlbum
      date published: 2025-06-13
    isrc code: QZWDE2567983
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T04:07:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7e3b3216359ed6f95baca664495adab96c6fcc46854b5ff623449a05af467399
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWDE2567983
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3b3216359ed6f95baca664495adab96c6fcc46854b5ff623449a05af467399. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZWDE2567983.
      date published: 2026-07-19T07:14:39Z
    audio: ERES TÚ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.986
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.771
      additional property: Energy
        type: PropertyValue
        value: 0.682
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.171
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.502
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.826
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.57
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ERES TU
  type: MusicAlbum
  date published: 2025-06-13
album: REGRESA PRONTO
  type: MusicAlbum
  date published: 2025-07-15
  track: REGRESA PRONTO
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205191
    explicit: false
    by artist: D' MARCEL AGRUPACIÓN MUSICAL
    in album: REGRESA PRONTO
      type: MusicAlbum
      date published: 2025-07-15
    isrc code: QZWV32554961
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:10:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0057a933a1699b67252a055c78c24797964e1124bff98ebecb683a1af8bf9500
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWV32554961
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0057a933a1699b67252a055c78c24797964e1124bff98ebecb683a1af8bf9500. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWV32554961.
      date published: 2026-07-04T11:19:20Z
    audio: REGRESA PRONTO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.158
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.68
      additional property: Energy
        type: PropertyValue
        value: 0.706
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.071
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.716

Loudness (dB)
type: PropertyValue
value: -6.437

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

REGRESA PRONTO
type: MusicAlbum
date published: 2025-07-15