Marianne Cooke
type: MusicGroup
genre: musicals
popularity: 16
followers: 20
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  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
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  date published: 2026-06-15T04:47:56Z
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track: West Side Story, Act I: America (West Side Story)

West Side Story, Act I: America (West Side Story)
type: MusicRecording
duration: PT4M57S
duration ms: 297360
explicit: false
by artist: Leonard Bernstein
by artist: Marianne Cooke
by artist: Robert Dean
by artist: Mike Eldred
by artist: Betsi Morrison
by artist: Michael San Giovanni
by artist: Nashville Symphony Orchestra
by artist: Kenneth Schermerhorn
in album: Classical Music: 50 of the Best Film Classics
  type: MusicAlbum
  date published: 2012-10-01
genre: classical
genre: orchestra
isrc code: HKI190137409
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662ec7515bef8c38331a026ea0d7f86b4c377846baf1fc0fadabe5ed3314556a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI190137409.
  date published: 2026-07-08T08:56:20Z
audio: West Side Story, Act I: America (West Side Story)
  type: AudioObject
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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