Grupo Marfil
type: MusicGroup
genre: chicha
popularity: 6
followers: 187
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e188aaaf6eb41c1d76b3e79a4d5f1d4d06e19c6a52ca4aa7b2e7723bc788483
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f16ae998-904d-4bb2-806d-aa3def36cd77.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f16ae998-904d-4bb2-806d-aa3def36cd77.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f16ae998-904d-4bb2-806d-aa3def36cd77
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e188aaaf6eb41c1d76b3e79a4d5f1d4d06e19c6a52ca4aa7b2e7723bc788483","name":"Grupo Marfil","registered_at":"2026-06-21T13:08:18Z","symbol":"NIM1931589","token_address":"0xf9870394b9b39c5a9f18310de137001f0d9dfe32","type":"artist","uuid":"f16ae998-904d-4bb2-806d-aa3def36cd77"}
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 0x1e188aaaf6eb41c1d76b3e79a4d5f1d4d06e19c6a52ca4aa7b2e7723bc788483. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f16ae998-904d-4bb2-806d-aa3def36cd77.json and https://artists.proofprofile.net/proofs/artist/f16ae998-904d-4bb2-806d-aa3def36cd77.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x1e188aaaf6eb41c1d76b3e79a4d5f1d4d06e19c6a52ca4aa7b2e7723bc788483","name":"Grupo Marfil","registered_at":"2026-06-21T13:08:18Z","symbol":"NIM1931589","token_address":"0xf9870394b9b39c5a9f18310de137001f0d9dfe32","type":"artist","uuid":"f16ae998-904d-4bb2-806d-aa3def36cd77"}
album: Grupo Marfil
  type: MusicAlbum
  date published: 1991-01-01
  track: Resignación
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225268
    explicit: false
    by artist: Grupo Marfil
    in album: Grupo Marfil
      type: MusicAlbum
      date published: 1991-01-01
    genre: chicha
    isrc code: QM4TW2259068
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T01:47:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8c7bb46061367e78134a96d573541b8fd50ed377463a793a8df48bfdc1a302f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2259068
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:24:08Z
    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 0xe8c7bb46061367e78134a96d573541b8fd50ed377463a793a8df48bfdc1a302f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:24:08Z), 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/QM4TW2259068.
      date published: 2026-07-20T00:24:08Z
    audio: Resignación
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.935
      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: 0.81
      additional property: Energy
        type: PropertyValue
        value: 0.717
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.164
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.073
      additional property: Liveness
        type: PropertyValue
        value: 0.257
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.933
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.87
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Grupo Marfil, Vol. 2
  type: MusicAlbum
  date published: 1991-01-02
  track: Te Alejas de Mi
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207939
    explicit: false
    by artist: Grupo Marfil
    in album: Grupo Marfil, Vol. 2
      type: MusicAlbum
      date published: 1991-01-02
    genre: chicha
    isrc code: QM4TW2259152
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T00:38:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8d370d86016631fc70455e8a51ce977a50ff98df43f1ec29414f1488ece9a9f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959089
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959089
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2259152
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:17:57Z
    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 0xe8d370d86016631fc70455e8a51ce977a50ff98df43f1ec29414f1488ece9a9f. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/QM4TW2259152.
      date published: 2026-07-22T02:17:57Z
    audio: Te Alejas de Mi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.02
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.636
      additional property: Energy
        type: PropertyValue
        value: 0.875
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.311
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.074
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Sueños Dorados
album: Entre copa y copa
album: La fuerza de un Estilo

Valence (Positivity)
type: PropertyValue
value: 0.86

Loudness (dB)
type: PropertyValue
value: -0.643

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Sueños Dorados
type: MusicAlbum
date published: 1998-06-01

Entre copa y copa
type: MusicAlbum
date published: 1998-06-07

La fuerza de un Estilo
type: MusicAlbum
date published: 1999-06-15