C.P.E. Bach
type: MusicGroup
popularity: 2
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa58f94a4187c4ef829f316a85a32f75662f0abdc9e1de4bded59b572cd4b7536
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6fc60ae-d31b-43fa-8109-6238a920981c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c6fc60ae-d31b-43fa-8109-6238a920981c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c6fc60ae-d31b-43fa-8109-6238a920981c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa58f94a4187c4ef829f316a85a32f75662f0abdc9e1de4bded59b572cd4b7536","name":"C.P.E. Bach","registered_at":"2026-06-20T21:34:46Z","symbol":"NIM1719782","token_address":"0x7e812e3155105fb8be3d0ff08c34a8a43ea9c1a1","type":"artist","uuid":"c6fc60ae-d31b-43fa-8109-6238a920981c"}
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 0xa58f94a4187c4ef829f316a85a32f75662f0abdc9e1de4bded59b572cd4b7536. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6fc60ae-d31b-43fa-8109-6238a920981c.json and https://artists.proofprofile.net/proofs/artist/c6fc60ae-d31b-43fa-8109-6238a920981c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xa58f94a4187c4ef829f316a85a32f75662f0abdc9e1de4bded59b572cd4b7536","name":"C.P.E. Bach","registered_at":"2026-06-20T21:34:46Z","symbol":"NIM1719782","token_address":"0x7e812e3155105fb8be3d0ff08c34a8a43ea9c1a1","type":"artist","uuid":"c6fc60ae-d31b-43fa-8109-6238a920981c"}
album: Solfeggietto C Minor, Wq.117 ソルフェジエット ハ短調 Wq.117
  type: MusicAlbum
  date published: 2022-06-22
album: C.P.E. Bach Sonata Wq. 132
  type: MusicAlbum
  date published: 2024-02-23
track: Sonata For Harp In G Major Wq 139, H 563 - Allegro
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222840
  explicit: false
  by artist: C.P.E. Bach
  by artist: Judy Loman
  in album: The Baroque Harp - Judy Loman Performs Bach And Scarlatti
    type: MusicAlbum
    date published: 2005-10-25
  popularity: 10
  isrc code: CAM230500031
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T16:41:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x01825ff1ebf6aebb5a0d864452edfba5f02354c97909c182171b3b1b93ede9c1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959159
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959159
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM230500031
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T17:48:40Z
  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 0x01825ff1ebf6aebb5a0d864452edfba5f02354c97909c182171b3b1b93ede9c1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CAM230500031.
    date published: 2026-07-22T17:48:40Z
  audio: Sonata For Harp In G Major Wq 139, H 563 - Allegro
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 110.541
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.258
    additional property: Energy
      type: PropertyValue
      value: 0.157
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.883
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.301
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.698
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major