Metropolitan Symphony Orchestra
type: MusicGroup
genre: classical
popularity: 8
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x147c63aa641234cd6df5c5ec86009b7bb98cde07f06e653f8c6f745256abe9fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc9f4a67-cc36-470d-ace1-93203274c52f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cc9f4a67-cc36-470d-ace1-93203274c52f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cc9f4a67-cc36-470d-ace1-93203274c52f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x147c63aa641234cd6df5c5ec86009b7bb98cde07f06e653f8c6f745256abe9fc","name":"Metropolitan Symphony Orchestra","registered_at":"2026-06-20T23:23:37Z","symbol":"NIM1747113","token_address":"0x0a7c82862c241e069103ae969d85ad11212065bf","type":"artist","uuid":"cc9f4a67-cc36-470d-ace1-93203274c52f"}
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 0x147c63aa641234cd6df5c5ec86009b7bb98cde07f06e653f8c6f745256abe9fc. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc9f4a67-cc36-470d-ace1-93203274c52f.json and https://artists.proofprofile.net/proofs/artist/cc9f4a67-cc36-470d-ace1-93203274c52f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x147c63aa641234cd6df5c5ec86009b7bb98cde07f06e653f8c6f745256abe9fc","name":"Metropolitan Symphony Orchestra","registered_at":"2026-06-20T23:23:37Z","symbol":"NIM1747113","token_address":"0x0a7c82862c241e069103ae969d85ad11212065bf","type":"artist","uuid":"cc9f4a67-cc36-470d-ace1-93203274c52f"}
album: Rudolf Ganz as Pianist and Conductor
  type: MusicAlbum
  date published: 2010-01-15
track: Macbeth: Preludio
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208520
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Leonard Warren
  by artist: Leonie Rysanek
  by artist: Carlo Bergonzi
  by artist: Erich Leinsdorf
  by artist: Metropolitan Symphony Orchestra
  in album: Verdi: Macbeth
    type: MusicAlbum
    date published: 2010-02-06
  genre: classical
  genre: opera
  isrc code: QM6N21456906
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T16:29:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7af15c1130d53505d78c07dd2515ee735201343b11768bb2ef4743b0827d56b6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21456906
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x7af15c1130d53505d78c07dd2515ee735201343b11768bb2ef4743b0827d56b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21456906 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Macbeth: Preludio
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.74
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.25
    additional property: Energy
      type: PropertyValue
      value: 0.032
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.869
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.176
    additional property: Liveness
      type: PropertyValue
      value: 0.194
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.06
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.143
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor