Grupo Zamar
type: MusicGroup
genre: duranguense
popularity: 8
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe93e98deeffb85b034776fe27fc4862ccc5cc70144f7eb850152c5abbe02dcf0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11ffa66a-5597-46b6-8f13-580b644d4ed8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11ffa66a-5597-46b6-8f13-580b644d4ed8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/11ffa66a-5597-46b6-8f13-580b644d4ed8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe93e98deeffb85b034776fe27fc4862ccc5cc70144f7eb850152c5abbe02dcf0","name":"Grupo Zamar","registered_at":"2026-06-15T19:45:12Z","symbol":"NIM0812598","token_address":"0x64065fa870c2e9b3a421e808d050f04c28b35673","type":"artist","uuid":"11ffa66a-5597-46b6-8f13-580b644d4ed8"}
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 0xe93e98deeffb85b034776fe27fc4862ccc5cc70144f7eb850152c5abbe02dcf0. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11ffa66a-5597-46b6-8f13-580b644d4ed8.json and https://artists.proofprofile.net/proofs/artist/11ffa66a-5597-46b6-8f13-580b644d4ed8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xe93e98deeffb85b034776fe27fc4862ccc5cc70144f7eb850152c5abbe02dcf0","name":"Grupo Zamar","registered_at":"2026-06-15T19:45:12Z","symbol":"NIM0812598","token_address":"0x64065fa870c2e9b3a421e808d050f04c28b35673","type":"artist","uuid":"11ffa66a-5597-46b6-8f13-580b644d4ed8"}
album: Mi Libertador
  type: MusicAlbum
  date published: 2009-03-23
  track: El Corrido De Marcelo
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218946
    explicit: false
    by artist: Grupo Zamar
    in album: Mi Libertador
      type: MusicAlbum
      date published: 2009-03-23
    genre: duranguense
    isrc code: QZ2J21501019
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T11:12:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1960ef3ea1284e1913a867ae0d0009a9607fcde56361603e1a7260cbca386907
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ2J21501019
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T14:16:33Z
    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 0x1960ef3ea1284e1913a867ae0d0009a9607fcde56361603e1a7260cbca386907. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:33Z), 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/QZ2J21501019.
      date published: 2026-07-16T14:16:33Z
    audio: El Corrido De Marcelo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.555
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.846
      additional property: Energy
        type: PropertyValue
        value: 0.506
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.096
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.047
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.94
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.997
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mi Libertador
  type: MusicAlbum
  date published: 2009-03-23
album: Fuente de Agua
  type: MusicAlbum
  date published: 2021-06-11
album: Iluminame Señor
  type: MusicAlbum
  date published: 2021-06-11
album: Fuente de Agua
  type: MusicAlbum
  date published: 2021-06-11
album: Iluminame Señor
  type: MusicAlbum
  date published: 2021-06-11
album: Rey de Reyes
  type: MusicAlbum
  date published: 2021-06-11