La Santa Calavera
type: MusicGroup
genre: tango
popularity: 10
followers: 686
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a7a0c884e1dd6c0bba907e1a676276a396c0cb2af815926b7824c16f2cf5e18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/609168f2-9ebe-45e6-83eb-b7244037956a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/609168f2-9ebe-45e6-83eb-b7244037956a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/609168f2-9ebe-45e6-83eb-b7244037956a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a7a0c884e1dd6c0bba907e1a676276a396c0cb2af815926b7824c16f2cf5e18","name":"La Santa Calavera","registered_at":"2026-06-16T23:18:49Z","symbol":"NIM1207236","token_address":"0x05869a3a5d6d017806eb7bf4432868486d9352cb","type":"artist","uuid":"609168f2-9ebe-45e6-83eb-b7244037956a"}
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 0x4a7a0c884e1dd6c0bba907e1a676276a396c0cb2af815926b7824c16f2cf5e18. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/609168f2-9ebe-45e6-83eb-b7244037956a.json and https://artists.proofprofile.net/proofs/artist/609168f2-9ebe-45e6-83eb-b7244037956a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4a7a0c884e1dd6c0bba907e1a676276a396c0cb2af815926b7824c16f2cf5e18","name":"La Santa Calavera","registered_at":"2026-06-16T23:18:49Z","symbol":"NIM1207236","token_address":"0x05869a3a5d6d017806eb7bf4432868486d9352cb","type":"artist","uuid":"609168f2-9ebe-45e6-83eb-b7244037956a"}
album: Mensaje
  type: MusicAlbum
  date published: 2022-03-28
  track: Sacále Punta
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166229
    explicit: false
    by artist: La Santa Calavera
    in album: Mensaje
      type: MusicAlbum
      date published: 2022-03-28
    genre: tango
    isrc code: USCGJ2230291
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T11:36:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x114af79c1c766443eea85d20d52b2549733349e835036db8143da99bbab31361
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958543
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958543
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2230291
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T11:58:44Z
    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 0x114af79c1c766443eea85d20d52b2549733349e835036db8143da99bbab31361. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USCGJ2230291.
      date published: 2026-07-18T11:58:44Z
    audio: Sacále Punta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.478
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.377
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.683
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.873
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.2
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tristeza Marina
  type: MusicAlbum
  date published: 2023-04-14
album: Actual
  type: MusicAlbum
  date published: 2024-01-10
album: Pura Clase
  type: MusicAlbum
  date published: 2024-07-04