Conjunto Massalia
type: MusicGroup
genre: cha cha cha
genre: son cubano
popularity: 6
followers: 295
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdd8e9042a7a84192e411c72530782781b60038605bbde3b3a4ccf1b8c677f226
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/ece94fa9-e22d-43d2-bfb0-39a32d9b0750.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ece94fa9-e22d-43d2-bfb0-39a32d9b0750.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ece94fa9-e22d-43d2-bfb0-39a32d9b0750
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdd8e9042a7a84192e411c72530782781b60038605bbde3b3a4ccf1b8c677f226","name":"Conjunto Massalia","registered_at":"2026-06-21T11:32:28Z","symbol":"NIM1911947","token_address":"0xd95fea85721ccbec5b2c4ceff09697799ed6265d","type":"artist","uuid":"ece94fa9-e22d-43d2-bfb0-39a32d9b0750"}
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 0xdd8e9042a7a84192e411c72530782781b60038605bbde3b3a4ccf1b8c677f226. 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/ece94fa9-e22d-43d2-bfb0-39a32d9b0750.json and https://artists.proofprofile.net/proofs/artist/ece94fa9-e22d-43d2-bfb0-39a32d9b0750.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xdd8e9042a7a84192e411c72530782781b60038605bbde3b3a4ccf1b8c677f226","name":"Conjunto Massalia","registered_at":"2026-06-21T11:32:28Z","symbol":"NIM1911947","token_address":"0xd95fea85721ccbec5b2c4ceff09697799ed6265d","type":"artist","uuid":"ece94fa9-e22d-43d2-bfb0-39a32d9b0750"}
album: Partage
  type: MusicAlbum
  date published: 2007-10-05
album: Partage
  type: MusicAlbum
  date published: 2008-10-01
album: Por Fin Llego
  type: MusicAlbum
  date published: 2014-03-09
album: Por Fin Llego (feat. Dominique Gaspari)
  type: MusicAlbum
  date published: 2014-09-03
  track: Guajira y Chachacha (feat. Dominique Gaspari)
    type: MusicRecording
    duration: PT6M12S
    duration ms: 372480
    explicit: false
    by artist: Conjunto Massalia
    in album: Por Fin Llego (feat. Dominique Gaspari)
      type: MusicAlbum
      date published: 2014-09-03
    genre: cha cha cha
    genre: son cubano
    isrc code: FR9W10100966
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T10:30:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeae095875ed230cb008470bfce4d746722a6557086d98be24341c8b0e0034756
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958404
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958404
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W10100966
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T11:34:58Z
    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 0xeae095875ed230cb008470bfce4d746722a6557086d98be24341c8b0e0034756. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FR9W10100966 — a six-check JSON result.
      date published: 2026-07-17T11:34:58Z
    audio: Guajira y Chachacha (feat. Dominique Gaspari)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.044
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.795
      additional property: Energy
        type: PropertyValue
        value: 0.685
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.613
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.692
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.514
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: On the Dance Floor n°5
  type: MusicAlbum
  date published: 2014-12-01
album: Llevalo en Tu Corazon
  type: MusicAlbum
  date published: 2015-07-01
album: Bailadora
  type: MusicAlbum
  date published: 2015-07-01