Amy Dorfman
type: MusicGroup
genre: classical piano
popularity: 9
followers: 287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7042a1a7f87bf603f077ea6eb91b505c033f1bf2ee91878d5f5802779672ef6f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/d95713c6-9821-4282-acec-b1ee9e6c5524.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/d95713c6-9821-4282-acec-b1ee9e6c5524.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7042a1a7f87bf603f077ea6eb91b505c033f1bf2ee91878d5f5802779672ef6f. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d95713c6-9821-4282-acec-b1ee9e6c5524.json and https://artists.proofprofile.net/proofs/artist/d95713c6-9821-4282-acec-b1ee9e6c5524.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x7042a1a7f87bf603f077ea6eb91b505c033f1bf2ee91878d5f5802779672ef6f","name":"Amy Dorfman","registered_at":"2026-06-21T03:54:54Z","symbol":"NIM1811736","token_address":"0x29ec872fcaf0f06789f90fc6002c18cf690a0044","type":"artist","uuid":"d95713c6-9821-4282-acec-b1ee9e6c5524"}
album: Classical Piano
  type: MusicAlbum
  date published: 1997-01-01
  track: Nocturne Op. 9 #2 In Eb
    type: MusicRecording
    duration: PT4M34S
    duration ms: 274573
    explicit: false
    by artist: Amy Dorfman
    in album: Classical Piano
      type: MusicAlbum
      date published: 1997-01-01
    genre: classical piano
    isrc code: USB4U0850857
    additional property: CopyrightID
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      value: registered
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB4U0850857
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    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 0xf53623452fbf309dfe32a15b0502541c29e46fa3dacfb79f66bd297b395d9168. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USB4U0850857.
      date published: 2026-07-03T23:28:02Z
    audio: Nocturne Op. 9 #2 In Eb
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.422
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.344
      additional property: Energy
        type: PropertyValue
        value: 0.04
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.978
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.911
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.083
      additional property: Loudness (dB)
        type: PropertyValue
        value: -24.321
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Classical Moments: Relaxing Classical Music For Entertaining
  type: MusicAlbum
  date published: 2009-01-01