Playtres
type: MusicGroup
popularity: 6
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9b0a78ab17565f3bee472fc2e92a58c9c57c35a2f5d51d65b6687404d7a21aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953933
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953933
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fd54c9d-c5cb-44b7-b8d2-74de4e312ca3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fd54c9d-c5cb-44b7-b8d2-74de4e312ca3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fd54c9d-c5cb-44b7-b8d2-74de4e312ca3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:13:24Z
additional property: OTSCanonicalRecord
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 0xe9b0a78ab17565f3bee472fc2e92a58c9c57c35a2f5d51d65b6687404d7a21aa. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fd54c9d-c5cb-44b7-b8d2-74de4e312ca3.json and https://artists.proofprofile.net/proofs/artist/1fd54c9d-c5cb-44b7-b8d2-74de4e312ca3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:13:24Z
album: Playtres Ao Vivo no Abbey Road Studio Pub (2005)
  type: MusicAlbum
  date published: 2008-12-18
  track: Horizontes
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218200
    explicit: false
    by artist: Playtres
    in album: Playtres Ao Vivo no Abbey Road Studio Pub (2005)
      type: MusicAlbum
      date published: 2008-12-18
    isrc code: QZNWS2418589
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:38:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2abe6105755cca044522984a1b09ff4f6e664d4d46093517cd9d86fd3cd41827
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958783
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958783
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2418589
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T23:40:03Z
    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 0x2abe6105755cca044522984a1b09ff4f6e664d4d46093517cd9d86fd3cd41827. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:40:03Z), 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/QZNWS2418589.
      date published: 2026-07-19T23:40:03Z
    audio: Horizontes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.298
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.558
      additional property: Energy
        type: PropertyValue
        value: 0.131
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.76
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.979
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.403
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.988
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Hotel California
    type: MusicRecording
    duration: PT7M34S
    duration ms: 454400
    explicit: false
    by artist: Playtres
    in album: Playtres Ao Vivo no Abbey Road Studio Pub (2005)
      type: MusicAlbum
      date published: 2008-12-18
    isrc code: QZNWS2418590
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:31:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5f6b7a0698a62a3a0ecc3a513abd4221f11b96bc094860bad94bf0c0541bab45
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2418590
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x5f6b7a0698a62a3a0ecc3a513abd4221f11b96bc094860bad94bf0c0541bab45. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWS2418590.
      date published: 2026-07-05T18:48:28Z
    audio: Hotel California
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.883
      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: 0.495
      additional property: Energy
        type: PropertyValue
        value: 0.374
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.519
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.69
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.501
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.67
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name

Mode Name
type: PropertyValue
value: Major