Zac Rosenblum
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91c5c8181ec9e8753fb509d0301bf7fb6157b07b4f664085a21658c1736ea03a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9380bd2-b142-4e41-a75d-7f7a43b7dd97.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c9380bd2-b142-4e41-a75d-7f7a43b7dd97.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c9380bd2-b142-4e41-a75d-7f7a43b7dd97
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91c5c8181ec9e8753fb509d0301bf7fb6157b07b4f664085a21658c1736ea03a","name":"Zac Rosenblum","registered_at":"2026-06-20T22:36:36Z","symbol":"NIM1735800","token_address":"0x4338801f246524d5b97843111acaebaa58faddab","type":"artist","uuid":"c9380bd2-b142-4e41-a75d-7f7a43b7dd97"}
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 0x91c5c8181ec9e8753fb509d0301bf7fb6157b07b4f664085a21658c1736ea03a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9380bd2-b142-4e41-a75d-7f7a43b7dd97.json and https://artists.proofprofile.net/proofs/artist/c9380bd2-b142-4e41-a75d-7f7a43b7dd97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x91c5c8181ec9e8753fb509d0301bf7fb6157b07b4f664085a21658c1736ea03a","name":"Zac Rosenblum","registered_at":"2026-06-20T22:36:36Z","symbol":"NIM1735800","token_address":"0x4338801f246524d5b97843111acaebaa58faddab","type":"artist","uuid":"c9380bd2-b142-4e41-a75d-7f7a43b7dd97"}
album: Whiskey Talkin'
  type: MusicAlbum
  date published: 2024-05-10
  track: Whiskey Talkin'
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183383
    explicit: false
    by artist: Zac Rosenblum
    in album: Whiskey Talkin'
      type: MusicAlbum
      date published: 2024-05-10
    isrc code: QZJDZ2106336
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T04:43:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x38aaf37e4b0b2721304b162fc63ea6538c3bfaa4dd56651cde37f0b7752d07cb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZJDZ2106336
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x38aaf37e4b0b2721304b162fc63ea6538c3bfaa4dd56651cde37f0b7752d07cb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZJDZ2106336.
      date published: 2026-07-05T10:01:46Z
    audio: Whiskey Talkin'
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.712
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.43
      additional property: Energy
        type: PropertyValue
        value: 0.187
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.907
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.896
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.157
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.979
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: No Rhyming
  type: MusicAlbum
  date published: 2024-05-31
album: 3 by 4
  type: MusicAlbum
  date published: 2024-09-12
album: Oceans Crashing
  type: MusicAlbum
  date published: 2024-11-14
album: Whenever It Rains
  type: MusicAlbum
  date published: 2024-12-12
album: Timeless
  type: MusicAlbum
  date published: 2025-02-06
album: The Sweetest Drop
  type: MusicAlbum
  date published: 2025-02-27