Sarah Brooke
type: MusicGroup
genre: opera
popularity: 3
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2de87cf2ca1640a9f9e96b1680b2016876cad108aaa4b06d1501db141608b1b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/220bc163-ab66-43eb-b023-12f5536ddf4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/220bc163-ab66-43eb-b023-12f5536ddf4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/220bc163-ab66-43eb-b023-12f5536ddf4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2de87cf2ca1640a9f9e96b1680b2016876cad108aaa4b06d1501db141608b1b2","name":"Sarah Brooke","registered_at":"2026-06-16T01:22:07Z","symbol":"NIM0892976","token_address":"0x015e19d447230f22566c7a099b362b80210d5c73","type":"artist","uuid":"220bc163-ab66-43eb-b023-12f5536ddf4b"}
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 0x2de87cf2ca1640a9f9e96b1680b2016876cad108aaa4b06d1501db141608b1b2. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/220bc163-ab66-43eb-b023-12f5536ddf4b.json and https://artists.proofprofile.net/proofs/artist/220bc163-ab66-43eb-b023-12f5536ddf4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x2de87cf2ca1640a9f9e96b1680b2016876cad108aaa4b06d1501db141608b1b2","name":"Sarah Brooke","registered_at":"2026-06-16T01:22:07Z","symbol":"NIM0892976","token_address":"0x015e19d447230f22566c7a099b362b80210d5c73","type":"artist","uuid":"220bc163-ab66-43eb-b023-12f5536ddf4b"}
track: Bellini: Norma, Act 1 Scene 4: No. 4b, Aria, "Casta diva … Ah! bello a me ritorna" (Norma)
  type: MusicRecording
  duration: PT9M8S
  duration ms: 548640
  explicit: false
  by artist: Vincenzo Bellini
  by artist: Angela Gheorghiu
  by artist: Orchestra of the Royal Opera House, Covent Garden
  by artist: Ion Marin
  by artist: Sarah Brooke
  in album: Angela Gheorghiu Live at the Royal Opera House Covent Garden
    type: MusicAlbum
    date published: 2002-02-25
  genre: opera
  isrc code: GBAYC0102678
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T09:45:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5121ae5d1dbe7d1c67d2b0aa6691ccfe9461a23eee711cc3806472a1c3def9c5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0102678
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x5121ae5d1dbe7d1c67d2b0aa6691ccfe9461a23eee711cc3806472a1c3def9c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0102678.
    date published: 2026-07-02T03:55:08Z
  audio: Bellini: Norma, Act 1 Scene 4: No. 4b, Aria, "Casta diva … Ah! bello a me ritorna" (Norma)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.481
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.289
    additional property: Energy
      type: PropertyValue
      value: 0.049
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.98
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.652
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.551
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major