Sebastián León
type: MusicGroup
popularity: 3
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6f51c3d30ffe53738912d7e187d548d0c04350ddbb70dc05eac1f78d59e203b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd6f51c3d30ffe53738912d7e187d548d0c04350ddbb70dc05eac1f78d59e203b","name":"Sebastián León","registered_at":"2026-06-20T04:17:24Z","symbol":"NIM1508939","token_address":"0xfe0b6de9a81ff3f50110c5acfc1188053f745ad7","type":"artist","uuid":"9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c"}
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 0xd6f51c3d30ffe53738912d7e187d548d0c04350ddbb70dc05eac1f78d59e203b. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c.json and https://artists.proofprofile.net/proofs/artist/9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xd6f51c3d30ffe53738912d7e187d548d0c04350ddbb70dc05eac1f78d59e203b","name":"Sebastián León","registered_at":"2026-06-20T04:17:24Z","symbol":"NIM1508939","token_address":"0xfe0b6de9a81ff3f50110c5acfc1188053f745ad7","type":"artist","uuid":"9cc4af10-fe30-4a00-9d85-0b5d1aa1ea7c"}
album: Aroma a Nostalgia (Cover)
  type: MusicAlbum
  date published: 2022-07-08
album: Dame Tu Calor (Cover)
  type: MusicAlbum
  date published: 2022-12-25
  track: Dame Tu Calor - Cover
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89032
    explicit: false
    by artist: Sebastián León
    in album: Dame Tu Calor (Cover)
      type: MusicAlbum
      date published: 2022-12-25
    isrc code: QZW9M2281108
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:17:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x86e17c707d46f44c0637088762200b71846ba842cc11b794043184b1ec9e4e87
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958792
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958792
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2281108
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:55:52Z
    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 0x86e17c707d46f44c0637088762200b71846ba842cc11b794043184b1ec9e4e87. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZW9M2281108.
      date published: 2026-07-19T22:55:52Z
    audio: Dame Tu Calor - Cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.997
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.267
      additional property: Energy
        type: PropertyValue
        value: 0.288
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.872
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.182
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.463
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.633
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Acurrucar (Cover)
  type: MusicAlbum
  date published: 2025-05-11