Dia de Cambio
type: MusicGroup
genre: hardcore
popularity: 4
followers: 1759
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87371434b18c90748d6688fa4e3642a7236f2972753f8df6048cd7977e5ba079
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4801b01-e217-45d6-abe0-42558684da66.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4801b01-e217-45d6-abe0-42558684da66.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4801b01-e217-45d6-abe0-42558684da66
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87371434b18c90748d6688fa4e3642a7236f2972753f8df6048cd7977e5ba079","name":"Dia de Cambio","registered_at":"2026-06-20T13:45:08Z","symbol":"NIM1624299","token_address":"0xbfd53e9a5f16266bcfb9a462cab846edc36dd832","type":"artist","uuid":"b4801b01-e217-45d6-abe0-42558684da66"}
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 0x87371434b18c90748d6688fa4e3642a7236f2972753f8df6048cd7977e5ba079. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4801b01-e217-45d6-abe0-42558684da66.json and https://artists.proofprofile.net/proofs/artist/b4801b01-e217-45d6-abe0-42558684da66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x87371434b18c90748d6688fa4e3642a7236f2972753f8df6048cd7977e5ba079","name":"Dia de Cambio","registered_at":"2026-06-20T13:45:08Z","symbol":"NIM1624299","token_address":"0xbfd53e9a5f16266bcfb9a462cab846edc36dd832","type":"artist","uuid":"b4801b01-e217-45d6-abe0-42558684da66"}
album: 443
  type: MusicAlbum
  date published: 2004-06-14
  track: No Nos Juzgues
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166639
    explicit: false
    by artist: Dia de Cambio
    in album: 443
      type: MusicAlbum
      date published: 2004-06-14
    genre: hardcore
    isrc code: QZ4JJ1785481
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T10:39:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd56e14e5407a589438010d5dc2f4547e8c938b3f98e005d36beec782cfdc877d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959001
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959001
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1785481
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:40:39Z
    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 0xd56e14e5407a589438010d5dc2f4547e8c938b3f98e005d36beec782cfdc877d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:40:39Z), 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/QZ4JJ1785481.
      date published: 2026-07-21T13:40:39Z
    audio: No Nos Juzgues
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.289
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.299
      additional property: Energy
        type: PropertyValue
        value: 0.923
      additional property: Speechiness
        type: PropertyValue
        value: 0.094
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.362
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.243
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.467
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Esta Noche
  type: MusicAlbum
  date published: 2007-02-14
album: Levantate
  type: MusicAlbum
  date published: 2017-08-15
album: KARMA
  type: MusicAlbum
  date published: 2023-11-21