Best of Piano
type: MusicGroup
popularity: 4
followers: 224
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0feb97354b40e906514a56580146966b73c2a42bca5e9fe75813cfdd1c1e8e80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21e1dce2-25ce-452e-bfaf-a680a0750014.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21e1dce2-25ce-452e-bfaf-a680a0750014.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21e1dce2-25ce-452e-bfaf-a680a0750014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0feb97354b40e906514a56580146966b73c2a42bca5e9fe75813cfdd1c1e8e80","name":"Best of Piano","registered_at":"2026-06-16T01:23:47Z","symbol":"NIM0893376","token_address":"0xb9dc0eb621ea6ecfc7f34157bac8aa5a2aec44b4","type":"artist","uuid":"21e1dce2-25ce-452e-bfaf-a680a0750014"}
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 0x0feb97354b40e906514a56580146966b73c2a42bca5e9fe75813cfdd1c1e8e80. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21e1dce2-25ce-452e-bfaf-a680a0750014.json and https://artists.proofprofile.net/proofs/artist/21e1dce2-25ce-452e-bfaf-a680a0750014.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x0feb97354b40e906514a56580146966b73c2a42bca5e9fe75813cfdd1c1e8e80","name":"Best of Piano","registered_at":"2026-06-16T01:23:47Z","symbol":"NIM0893376","token_address":"0xb9dc0eb621ea6ecfc7f34157bac8aa5a2aec44b4","type":"artist","uuid":"21e1dce2-25ce-452e-bfaf-a680a0750014"}
album: Musik für Genießer
  type: MusicAlbum
  date published: 2015-03-10
  track: Una Mattina
    type: MusicRecording
    duration: PT2M54S
    duration ms: 174649
    explicit: false
    by artist: Best of Piano
    in album: Musik für Genießer
      type: MusicAlbum
      date published: 2015-03-10
    isrc code: DEZ921400832
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:37:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xac0f7b74653ea13788e7e7841df35e3853f91e19207d7612c757b7fa21695e94
    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/DEZ921400832
    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 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 0xac0f7b74653ea13788e7e7841df35e3853f91e19207d7612c757b7fa21695e94. 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/DEZ921400832.
      date published: 2026-07-05T18:48:28Z
    audio: Una Mattina
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.601
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.246
      additional property: Energy
        type: PropertyValue
        value: 0.306
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.977
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.902
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.161
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.886
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor