SaD - Symphony and Metallica
type: MusicGroup
popularity: 9
followers: 1375
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd91321d7aef3d9c6488fe83fe8d15c537a417f092d912a848a1d6c4f3bfd672f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa40c33f-f4a6-4f81-8627-fa525b7591aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa40c33f-f4a6-4f81-8627-fa525b7591aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aa40c33f-f4a6-4f81-8627-fa525b7591aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xd91321d7aef3d9c6488fe83fe8d15c537a417f092d912a848a1d6c4f3bfd672f","name":"SaD - Symphony and Metallica","registered_at":"2026-06-20T08:58:54Z","symbol":"NIM1573317","token_address":"0x6ef3a6f6d22dd50a01a3cb2f15f613728c319526","type":"artist","uuid":"aa40c33f-f4a6-4f81-8627-fa525b7591aa"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91321d7aef3d9c6488fe83fe8d15c537a417f092d912a848a1d6c4f3bfd672f. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa40c33f-f4a6-4f81-8627-fa525b7591aa.json and https://artists.proofprofile.net/proofs/artist/aa40c33f-f4a6-4f81-8627-fa525b7591aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xd91321d7aef3d9c6488fe83fe8d15c537a417f092d912a848a1d6c4f3bfd672f","name":"SaD - Symphony and Metallica","registered_at":"2026-06-20T08:58:54Z","symbol":"NIM1573317","token_address":"0x6ef3a6f6d22dd50a01a3cb2f15f613728c319526","type":"artist","uuid":"aa40c33f-f4a6-4f81-8627-fa525b7591aa"}
album: Symphony and Metallica (Live at Vicenza City Hall Theatre)
  type: MusicAlbum
  date published: 2020-12-25
  track: Hero of the Day - Live
    type: MusicRecording
    duration: PT4M33S
    duration ms: 273846
    explicit: false
    by artist: SaD - Symphony and Metallica
    in album: Symphony and Metallica (Live at Vicenza City Hall Theatre)
      type: MusicAlbum
      date published: 2020-12-25
    isrc code: QZGWX2062235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2062235
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T08:49:56Z
    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 0xcbb6e7b244428ea0d9d627f231e4f994e9ac701b5660f41689903b3d44726c3b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:49:56Z), 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/QZGWX2062235.
      date published: 2026-07-21T08:49:56Z
    audio: Hero of the Day - Live
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.249
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.287
      additional property: Energy
        type: PropertyValue
        value: 0.708
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.711
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.226
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.034
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Nothing Else Matters - Live
    type: MusicRecording
    duration: PT6M37S
    duration ms: 397855
    explicit: false
    by artist: SaD - Symphony and Metallica
    in album: Symphony and Metallica (Live at Vicenza City Hall Theatre)
      type: MusicAlbum
      date published: 2020-12-25
    isrc code: QZGWX2062240
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x15a579d842ee1e1c1ef778447c3ccf17f86b58260b203887fc8fcbbe58cb4df3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2062240
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x15a579d842ee1e1c1ef778447c3ccf17f86b58260b203887fc8fcbbe58cb4df3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZGWX2062240.
      date published: 2026-07-05T12:31:54Z
    audio: Nothing Else Matters - Live
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.306
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.164
      additional property: Energy
        type: PropertyValue
        value: 0.483
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.161
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.715
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.122
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.173
      additional property: Key Name
      additional property: Mode Name
album: Fade To Black (Metallica Tribute Live with Symphony Orchestra)

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

Fade To Black (Metallica Tribute Live with Symphony Orchestra)
type: MusicAlbum
date published: 2024-03-18