Zack Feinberg
type: MusicGroup
popularity: 5
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9a0cd253b70cb64ad8221896001f79e044825174ab5eca4f84b0f8bab6dc9e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/70b7852f-7d99-4bae-b989-741f7760d845.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/70b7852f-7d99-4bae-b989-741f7760d845.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/70b7852f-7d99-4bae-b989-741f7760d845
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9a0cd253b70cb64ad8221896001f79e044825174ab5eca4f84b0f8bab6dc9e5","name":"Zack Feinberg","registered_at":"2026-06-17T04:55:02Z","symbol":"NIM1287473","token_address":"0xcf34de0a11acb3018078582c2af750ad0fd53703","type":"artist","uuid":"70b7852f-7d99-4bae-b989-741f7760d845"}
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 0xb9a0cd253b70cb64ad8221896001f79e044825174ab5eca4f84b0f8bab6dc9e5. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70b7852f-7d99-4bae-b989-741f7760d845.json and https://artists.proofprofile.net/proofs/artist/70b7852f-7d99-4bae-b989-741f7760d845.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb9a0cd253b70cb64ad8221896001f79e044825174ab5eca4f84b0f8bab6dc9e5","name":"Zack Feinberg","registered_at":"2026-06-17T04:55:02Z","symbol":"NIM1287473","token_address":"0xcf34de0a11acb3018078582c2af750ad0fd53703","type":"artist","uuid":"70b7852f-7d99-4bae-b989-741f7760d845"}
album: What Happened?
  type: MusicAlbum
  date published: 2025-02-28
  track: What Happened?
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217864
    explicit: false
    by artist: Zack Feinberg
    in album: What Happened?
      type: MusicAlbum
      date published: 2025-02-28
    isrc code: TCAJH2537932
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:31:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xce052364de6e48a6fe4b8ee036e81d3399bf5d13dce61ebbe20dbbe4c57caa40
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJH2537932
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:32:53Z
    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 0xce052364de6e48a6fe4b8ee036e81d3399bf5d13dce61ebbe20dbbe4c57caa40. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:32:53Z), 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/TCAJH2537932.
      date published: 2026-07-17T02:32:53Z
    audio: What Happened?
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.979
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.551
      additional property: Energy
        type: PropertyValue
        value: 0.871
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.101
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.009
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.671
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.985
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Skin in the Game
  type: MusicAlbum
  date published: 2025-03-28
album: Call It a Miracle
  type: MusicAlbum
  date published: 2025-04-25
  track: Rock and Roll Goes to Heaven
    type: MusicRecording
    duration: PT4M3S
    duration ms: 243500
    explicit: false
    by artist: Zack Feinberg
    in album: Call It a Miracle
      type: MusicAlbum
      date published: 2025-04-25
    isrc code: TCAJL2523774
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T03:07:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a5c0f121444794bafc8f2098f9fa364d14a5ebdd0c07335a03619a32e0647b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJL2523774
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:29:18Z
    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 0x2a5c0f121444794bafc8f2098f9fa364d14a5ebdd0c07335a03619a32e0647b2. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/TCAJL2523774.
      date published: 2026-07-20T04:29:18Z
    audio: Rock and Roll Goes to Heaven
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.078
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.513
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.811
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.428

Loudness (dB)
type: PropertyValue
value: -8.143

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major