Sardiné
type: MusicGroup
genre: melodic techno
genre: progressive house
popularity: 4
followers: 46
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb20fc52544dd4cddabe37c1c34e6764d20788b13b14ea89e53e6d3d72436c2b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/490214a6-a24e-4011-9ea5-394bcc4021e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/490214a6-a24e-4011-9ea5-394bcc4021e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/490214a6-a24e-4011-9ea5-394bcc4021e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb20fc52544dd4cddabe37c1c34e6764d20788b13b14ea89e53e6d3d72436c2b4","name":"Sardiné","registered_at":"2026-06-16T15:00:22Z","symbol":"NIM1088307","token_address":"0xdca1d8197b1cedd6cdf78873abf8fdb98310ef24","type":"artist","uuid":"490214a6-a24e-4011-9ea5-394bcc4021e9"}
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 0xb20fc52544dd4cddabe37c1c34e6764d20788b13b14ea89e53e6d3d72436c2b4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/490214a6-a24e-4011-9ea5-394bcc4021e9.json and https://artists.proofprofile.net/proofs/artist/490214a6-a24e-4011-9ea5-394bcc4021e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xb20fc52544dd4cddabe37c1c34e6764d20788b13b14ea89e53e6d3d72436c2b4","name":"Sardiné","registered_at":"2026-06-16T15:00:22Z","symbol":"NIM1088307","token_address":"0xdca1d8197b1cedd6cdf78873abf8fdb98310ef24","type":"artist","uuid":"490214a6-a24e-4011-9ea5-394bcc4021e9"}
album: Sardiné
  type: MusicAlbum
  date published: 2024-08-16
album: Carico d´Oro
  type: MusicAlbum
  date published: 2024-11-29
album: MARA
  type: MusicAlbum
  date published: 2025-02-06
  track: MARA
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196000
    explicit: false
    by artist: Sardiné
    in album: MARA
      type: MusicAlbum
      date published: 2025-02-06
    genre: melodic techno
    genre: progressive house
    isrc code: QZFYZ2560116
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:56:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6b0a5b730ca87deee00a7d5f2ef3b5dbd83a6c631f98f464b9eee8504ac5b391
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2560116
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x6b0a5b730ca87deee00a7d5f2ef3b5dbd83a6c631f98f464b9eee8504ac5b391. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFYZ2560116.
      date published: 2026-07-04T11:19:20Z
    audio: MARA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.033
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.575
      additional property: Energy
        type: PropertyValue
        value: 0.575
      additional property: Speechiness
        type: PropertyValue
        value: 0.197
      additional property: Acousticness
        type: PropertyValue
        value: 0.068
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.421
      additional property: Liveness
        type: PropertyValue
        value: 0.376
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.872
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.745
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: SALINIDAD 36.5
  type: MusicAlbum
  date published: 2025-10-22