CALMA QUEBRANTO
type: MusicGroup
popularity: 3
followers: 73
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2c2847faacb43d4b072d42e8f806a85d7857e80056913e65ba761365ca7d1286
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99143837-adc2-4d87-a798-d64e77521f15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99143837-adc2-4d87-a798-d64e77521f15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99143837-adc2-4d87-a798-d64e77521f15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2c2847faacb43d4b072d42e8f806a85d7857e80056913e65ba761365ca7d1286","name":"CALMA QUEBRANTO","registered_at":"2026-06-17T19:06:34Z","symbol":"NIM1490527","token_address":"0xd8ce05347a8a119a4466b6f048b38dfbeec0a61f","type":"artist","uuid":"99143837-adc2-4d87-a798-d64e77521f15"}
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 0x2c2847faacb43d4b072d42e8f806a85d7857e80056913e65ba761365ca7d1286. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99143837-adc2-4d87-a798-d64e77521f15.json and https://artists.proofprofile.net/proofs/artist/99143837-adc2-4d87-a798-d64e77521f15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x2c2847faacb43d4b072d42e8f806a85d7857e80056913e65ba761365ca7d1286","name":"CALMA QUEBRANTO","registered_at":"2026-06-17T19:06:34Z","symbol":"NIM1490527","token_address":"0xd8ce05347a8a119a4466b6f048b38dfbeec0a61f","type":"artist","uuid":"99143837-adc2-4d87-a798-d64e77521f15"}
album: Otras formas de arder
  type: MusicAlbum
  date published: 2023-06-12
  track: Los olvidos eternos
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198154
    explicit: false
    by artist: CALMA QUEBRANTO
    in album: Otras formas de arder
      type: MusicAlbum
      date published: 2023-06-12
    isrc code: QZK6G2315380
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:37:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea4615c940eecd2a7595895bbfa81fde7175d59be2c5c916435f867fb3fb284e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2315380
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0xea4615c940eecd2a7595895bbfa81fde7175d59be2c5c916435f867fb3fb284e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6G2315380.
      date published: 2026-07-05T01:12:41Z
    audio: Los olvidos eternos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.118
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.566
      additional property: Energy
        type: PropertyValue
        value: 0.834
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.886
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.625
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.999
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Otras Formas de Arder
  type: MusicAlbum
  date published: 2023-06-12
album: Espectáculos baratos para familias pobres
  type: MusicAlbum
  date published: 2025-03-20