Classi Calguitar
type: MusicGroup
popularity: 5
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf1ffaac06d095745925cbd20dabea2992a195dc881a87faa146ffe4288c14a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953879
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953879
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09fe9377-4d8e-40f9-aefc-097342794d38.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/09fe9377-4d8e-40f9-aefc-097342794d38.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/09fe9377-4d8e-40f9-aefc-097342794d38
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdf1ffaac06d095745925cbd20dabea2992a195dc881a87faa146ffe4288c14a8","name":"Classi Calguitar","registered_at":"2026-06-15T16:58:44Z","symbol":"NIM0772868","token_address":"0x81b494e7555fc187dfeed7359c835fcb584dff3c","type":"artist","uuid":"09fe9377-4d8e-40f9-aefc-097342794d38"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1ffaac06d095745925cbd20dabea2992a195dc881a87faa146ffe4288c14a8. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09fe9377-4d8e-40f9-aefc-097342794d38.json and https://artists.proofprofile.net/proofs/artist/09fe9377-4d8e-40f9-aefc-097342794d38.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T02:57:35Z
  text: {"copyright_id":"0xdf1ffaac06d095745925cbd20dabea2992a195dc881a87faa146ffe4288c14a8","name":"Classi Calguitar","registered_at":"2026-06-15T16:58:44Z","symbol":"NIM0772868","token_address":"0x81b494e7555fc187dfeed7359c835fcb584dff3c","type":"artist","uuid":"09fe9377-4d8e-40f9-aefc-097342794d38"}
album: Lágrima en Sol Mayor
  type: MusicAlbum
  date published: 2025-11-06
  track: Lágrima en Sol Mayor
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142785
    explicit: false
    by artist: Classi Calguitar
    in album: Lágrima en Sol Mayor
      type: MusicAlbum
      date published: 2025-11-06
    isrc code: SE6QE2531606
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T15:52:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd602b0f9b88f0029695467031445de36d69e299a23f72e686a961f55c2822d10
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2531606
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T16:23:52Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd602b0f9b88f0029695467031445de36d69e299a23f72e686a961f55c2822d10. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6QE2531606 — a six-check JSON result.
      date published: 2026-07-22T16:23:52Z
    audio: Lágrima en Sol Mayor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 60.252
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.208
      additional property: Energy
        type: PropertyValue
        value: 0.017
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.922
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.91
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.458
      additional property: Loudness (dB)
        type: PropertyValue
        value: -25.629
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor