Rapers Familia
type: MusicGroup
genre: mexican hip hop
popularity: 7
followers: 4228
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf60a4b9ce32343cd4f623cec261dc832b327ac56db5f270c3ea216c0a1ab56bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d102c8ed-0c18-4a27-a3d8-04752d4b9016.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d102c8ed-0c18-4a27-a3d8-04752d4b9016.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d102c8ed-0c18-4a27-a3d8-04752d4b9016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf60a4b9ce32343cd4f623cec261dc832b327ac56db5f270c3ea216c0a1ab56bb","name":"Rapers Familia","registered_at":"2026-06-21T01:04:21Z","symbol":"NIM1770393","token_address":"0x61f4b8df3ab27d436b9fdae105a5acc00dc581c1","type":"artist","uuid":"d102c8ed-0c18-4a27-a3d8-04752d4b9016"}
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 0xf60a4b9ce32343cd4f623cec261dc832b327ac56db5f270c3ea216c0a1ab56bb. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d102c8ed-0c18-4a27-a3d8-04752d4b9016.json and https://artists.proofprofile.net/proofs/artist/d102c8ed-0c18-4a27-a3d8-04752d4b9016.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0xf60a4b9ce32343cd4f623cec261dc832b327ac56db5f270c3ea216c0a1ab56bb","name":"Rapers Familia","registered_at":"2026-06-21T01:04:21Z","symbol":"NIM1770393","token_address":"0x61f4b8df3ab27d436b9fdae105a5acc00dc581c1","type":"artist","uuid":"d102c8ed-0c18-4a27-a3d8-04752d4b9016"}
album: Perros Sin Cadenas
  type: MusicAlbum
  date published: 2013-06-05
album: Welcome To My Barrio
  type: MusicAlbum
  date published: 2014-06-12
  track: La Obeja Negra
    type: MusicRecording
    duration: PT6M11S
    duration ms: 371841
    explicit: true
    by artist: Rapers Familia
    in album: Welcome To My Barrio
      type: MusicAlbum
      date published: 2014-06-12
    genre: mexican hip hop
    isrc code: US7VG1840745
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:40:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe1c7003009ae303844a4521f24c1554b83e79289687d03a10130207e1abaadfe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1840745
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xe1c7003009ae303844a4521f24c1554b83e79289687d03a10130207e1abaadfe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US7VG1840745.
      date published: 2026-07-06T01:25:57Z
    audio: La Obeja Negra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.3
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.788
      additional property: Energy
        type: PropertyValue
        value: 0.561
      additional property: Speechiness
        type: PropertyValue
        value: 0.285
      additional property: Acousticness
        type: PropertyValue
        value: 0.14
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.447
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.757
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major