Leo’s 77
type: MusicGroup
genre: cumbia
popularity: 6
followers: 820
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe1706b791914f169d029edfd36d97661a74798bd27601f97619baf82d688f80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b815a722-d70c-478d-880f-8bd2b0306cc1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b815a722-d70c-478d-880f-8bd2b0306cc1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b815a722-d70c-478d-880f-8bd2b0306cc1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe1706b791914f169d029edfd36d97661a74798bd27601f97619baf82d688f80","name":"Leo’s 77","registered_at":"2026-06-20T15:26:38Z","symbol":"NIM1644461","token_address":"0x0cc02861fd7732c38a5d7216183e9c6c4945e6e5","type":"artist","uuid":"b815a722-d70c-478d-880f-8bd2b0306cc1"}
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 0xfe1706b791914f169d029edfd36d97661a74798bd27601f97619baf82d688f80. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b815a722-d70c-478d-880f-8bd2b0306cc1.json and https://artists.proofprofile.net/proofs/artist/b815a722-d70c-478d-880f-8bd2b0306cc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xfe1706b791914f169d029edfd36d97661a74798bd27601f97619baf82d688f80","name":"Leo’s 77","registered_at":"2026-06-20T15:26:38Z","symbol":"NIM1644461","token_address":"0x0cc02861fd7732c38a5d7216183e9c6c4945e6e5","type":"artist","uuid":"b815a722-d70c-478d-880f-8bd2b0306cc1"}
album: Gracias Al Cielo (Remasterizado)
  type: MusicAlbum
  date published: 2019-07-18
album: Con sabor a dulce
  type: MusicAlbum
  date published: 2022-08-01
  track: La cerveza
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200960
    explicit: false
    by artist: Leo’s 77
    in album: Con sabor a dulce
      type: MusicAlbum
      date published: 2022-08-01
    genre: cumbia
    isrc code: SE6SA2285288
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:52:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc38e7eeed0a4dc8305313a7d814a8687a10054ba25df4315f00795bf13f7fd02
    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/SE6SA2285288
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0xc38e7eeed0a4dc8305313a7d814a8687a10054ba25df4315f00795bf13f7fd02. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SE6SA2285288.
      date published: 2026-07-05T12:31:54Z
    audio: La cerveza
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.037
      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: 0.767
      additional property: Energy
        type: PropertyValue
        value: 0.829
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.537
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.962
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.796
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Con Sabor A Dulce 2
  type: MusicAlbum
  date published: 2023-01-13
album: Telchac Pblo (En Vivo)
  type: MusicAlbum
  date published: 2024-01-18